Your Rheem tankless water heater will trigger the P1 error codes if there is a lack of sufficient water flow to activate the unit. The error code 12 on the Rheem tankless tells you there is no flame or flame detection problem in the unit. Step #5: Remove all Molex from the connector. He has a good standing reputation for superior skills in heating, air conditioning, hot water tanks, and indoor air quality systems. You may need to replace the heat exchanger thermistor or the PCB. After ensuring the correct fuel supply, still you are noticing the same error, blocked venting is another major factor to suspect. Rheem Tankless Water Heater Error Codes P1, 02. It should give a reading of 50k 500k ohms. If you dont get this reading, you should replace the heat exchanger thermistor. If there is no remaining flame, you should check the display maintenance for information regarding the flame rod. The consent submitted will only be used for data processing originating from this website. If you dont get the appropriate voltage reading (8 to 16 VDC), you should replace the water control assembly. DO NOT alter any other DIP Switch. Then, inspect the gas solenoid valves and make sure they work properly. Next, check the pipes for any clogs. Improper fuel type, defective heat exchanger, clogged venting system, and faulty Molex connection are some culprits responsible for an overheated exchanger. However, the error code helps you troubleshoot the problem when scale buildup or malfunctions occur. Save my name, email, and website in this browser for the next time I comment. Defective Molex connection> Inspect the Molex connections at the PCB.> Remove the connectors and check the resistance going through them. Call the technician. Whether you need a new water heater, a sink repair, or a toilet fixed We Can Help! An overheated heat exchanger causes the film wrap sensor to fail and you will find the error code 14 in the display. You may need to replace the thermistor or the PCB. Ensure the unit is installed correctly, the hot and cold water lines are not mixed up, and there is enough water flow. Check the vent terminal and exhaust venting. Replace the PCB or the PGRF valve if necessary. You should follow the same troubleshooting steps as in error code 51. It represents a water protection fault at the indoor unit. Well! Rheem error codes 80 and 81 indicate a gas cut-off or extinction failure. If the heat exchanger gets too hot, it will cause the Overheat Film Wrap to fail. On top of this, you must ensure the drain will not allow backflow. Ensure the flame rod and gas valves wiring are in good working condition, installed correctly, and receive enough voltage. Lastly, ensure the igniter wire harness is intact. Rheem error code 79 means there is a problem with the current of the fan motor. From this chapter, you can learn about the most common error codes the tankless water heater shows. Rheem error code 90 indicates a blocked flue. Rheem Electric Tankless Water Heater Error Code E4, 04. When an error code is displayed on the screen and before you call the service support, do the following to reset the system, which might fix the issue: If nothing happens after resetting the unit and the error code is still visible, do the following: Cause: Limescale deposits in the heat exchanger water flow is reduced, and the temperature increases significantly. Just turn off the water supply valve to slow down the flow. Rheem error code 66 indicates a problem with the water bypass control. The Rheem error code 14 can be caused by using the wrong type of gas, blocked or obstructed airflow, vent terminals and exhaust vents, and faulty or a damaged heat exchanger. Clean the inlet filter if necessary. After another 20 seconds, switch the remote control on and the water supply too. The Solution Option 1 Unblock heat exchanger: Clear the heat exchanger of any blockages. Save my name, email, and website in this browser for the next time I comment. Close the hot water tap and turn OFF the remote. We also broke down what you should do if the capacitor gets faulty. Fireplacehubs.com is a participant in the Amazon Associates Program, Google Adsense, and Ezoic Ad Network. Begin with cleaning the air inlet filter. 3. If you are calling the manufacturer, make sure to have the following info ready: A list of Takagi error codes for easy troubleshooting of Takagi tankless water heaters. Now, you may ask- how can I understand whether the solenoid valves function correctly or not? Manage Settings Sometimes this issue can be fixed by simply restarting the unit. Replace the PCB or fan if necessary. We recommend you check the heat exchanger fins first for blockage. Also, if the heat exchanger is covered by dirt or shoots buildup, it gets too hot and causes the wrap sensor failure. Attach the remote control to the tankless unit with a different wire. E5 on a Rheem Tankless Water Heater means there is a high flow rate. However, there is also another meaning of the error code 29. To check the remote control, unplug your water heater from electricity and pull out its cover. If necessary, replace the remote control, remote control wiring, or the PCB. Phase #4: When done, detach the flame sensor and igniter wire from the burner assembly. Turn off the gas and water shutoff valves. If the code persists, call a licensed contractor. The Rheem error code 14 can be caused by using the wrong type of gas, blocked or obstructed airflow, vent terminals and exhaust vents, and faulty or a damaged heat exchanger. Now, pull out the burner. What I recommend to you first is to clean the blower motor and its housing. Ensure the MIC-180 and the EZLink are installed and set up correctly. Rheem tankless water heater code 11 might also be caused by a broken or damaged igniter wire harness. Check the air inlet filter, clean it, and ensure the vent pipes are connected correctly. If it gets filthy, remove the dirt from the heat exchanger. We have an in-depth guide on Rheem Tankless Water Heater error code 13 where we broke down the way of adjusting burner manifold pressure. If you get the voltage reading, take another measurement at connector B between the White#2 and White#8 wires. Side 1/2" NPT water connections. To avoid this issue, we recommend you check the manual and use the gas type according to the manual. After removing the front panel cover, press the air intake switch and ensure it operates correctly. If there is no pulse output, you should replace the fan. My Water Heater Smells Like Gas - What to Do? Rheem error code 52 indicates an issue with the proportional gas flow regulator valve (PGFR). You may need to replace the thermistor or the PCB. First up, figure out the all responsive factors for the code and fix those. Sediment Deposits In The Heating System 5. Simple. If the readings are not right, replace the thermistor; if they are within specs, you may have to replace the PCB. Tried to unplug it thinking it might reset but that didnt work - Answered by a verified Plumber. If there is any hot spot created on the heat exchanger, it will cause the Overheat Film Wrap to fail. To fix the Rheem error code IL, drain and flush the heat exchanger as recommended in your owners manual, which Rheem has provided. Ensure all vents are not blocked and in good working condition. If youre wondering how to do it, take a look at our dedicated guide to learn the detailed procedures. Ensure its installed correctly and measure its resistance. Blocked venting> Inspect the exhaust pipes for any clogs.> Clean out the venting using a vacuum cleaner. Though we share resources, information, and educational guide on plumbing & DIY projects, the content here is not a substitute for professional guidance. Like other water heaters, the Rheem tankless water heater has a venting system. However, if there is no information, measure the resistance to the heat exchanger thermistor. The water temperature on the remote control is set too high. Rheem error code 03 is found on units with MIC-180 or EZLink. COPYRIGHT 2023. Learn more, Facebook II Twitter II Pinterest II Linkedin. To troubleshoot the Rheem error code 10, check the air intake condition, exhaust flue inlet, heat exchanger, fan blade, and fins. Remove the panel cover and locate the reset button behind the insulation. We earn a commission if you purchase at no additional cost to you. Rheem error code 79 can be caused by condensation or moisture accumulation over the fan motor or damaged or loose wiring. Rheem tankless water heaters provide water on demand. Your tankless water heater will display this wrong message if the venting system fails or doesnt work properly. The diagnostics become simpler since the Rheem tankless heaters use the electronic control board and advanced technology with an optional remote controller and control panel. Now lets dive into the in-depth exploration, highlighting all the responsive factors for error 14 with effective solutions. Rheem Tankless Water Heater Error Code 10, 06. If everything looks in good condition, you may replace the PCB. All Plumbers are screened, licensed, and insured. These are mainly used to exhaust the combustion gas and enter the fresh air to continue the ignition process. Phase #2: Unscrew all the screws from the top panel. Exhaust Venting Gets Clogged 04. When the problem occurs, the error code is displayed on the LCD screen of the remote or user interface, so by understanding the meaning of the code, the troubleshooting gets easier. A faulty water flow sensor or PCB can also be the reason for your unit not working. condition: new make / manufacturer: Rheem . Then, remove the front access panel. It is possible for a Rheem unit not to heat water, though it has a flowing water supply and does not display any error codes. It will be better if you install the heat tape close to the exit to the main drain to get the best output. What Is Error Code 14 On Rheem Tankless Water Heater? Founded by Hubert Miles, Certified Master Inspector. What does E4 mean on a Rheem tankless water heater? Replace the PCB or fan if needed. So is the case with Rheem tankless water heaters. . We don't tend to provide any plumbing advice or any advice that should come from a certified professional. So, lets get started right here. Ensure minimum water flow and clean cold water inlet pipe and aerator screens. If your Rheem tankless water heater shows an error code 00, try restarting it. Check the water flow servo and the cold water bypass system. Replace the water control assembly or the PCB if necessary. Rheem error code 76 indicates a failure in communication with the remote control. It helps us diagnose and determine the exact problem with the water heater. Restart the unit and confirm the water control receives enough voltage. Before starting anything, dont miss to turn off the power and gas supply to your water heater. Error Code 13 Call the service if none of the steps taken above works. If the water doesnt flow, we recommend you increase the flow rate. > Inspect the Molex connections at the PCB. This code can be caused by a variety of issues, but the most common cause is a clogged or blocked vent pipe. > Clean out the combustion chamber using an air compressor. Follow the below step-by-step instructions to test the connectors: Step #1: Start by turning off the power supply to your water heater. d. Remove outlet pipe bracket and ceramic heater plug. Why is Your Water Heater Leaking From Overflow Pipe? In that article, we described everything that causes your water heater to trigger the error message 12. Rheem error code 14 means the overheat film wrap has been activated, usually caused by a hot spot. Whenever you are encountering this error code, look for the cracked or broken heat exchangers as it is the leading factor for the faulty film wrap sensor. Check the heat exchanger for scale buildup. Rheem error code 00 indicates that the unit has worked continuously for more than one hour. The unit should work correctly if the water temperature is displayed in the maintenance information. If your Rheem displays an error code 29, ensure the heat exchanger is clean of any buildups. If the temperature is not within specifications, replace the thermistor, and if it is, you may have to replace the PCB. At 210F, it will automatically shut down and switch on automatically when the temperature goes down to 194F. SVC 810 Tankless Troubleshooting Manual Connector and Hot Water Outlet Thermistor a. Can I Repair a Bulging Water Heater? Rheem error code 05 can be caused by blocked air ventilation and exhaust flue systems. If there is no information, check the inlet thermistors resistance readings and replace the thermistor if they are not good. Rheem error code 31 indicates a malfunction with the water inlet thermistor. He obtained his Bachelor of Science degree from the University Of Texas at El Paso. The alarm sounds every 60 seconds when the tap is open. Lack of Ventilation In The Room 7. This will erase the code from the display. Rheem's tankless hot water heater error code P1 signals an issue with a low flow of water through your heater system, usually due to debris of some kind. If its empty, dont forget to fill it with gas. The complete sensor is wrapped with black squiggly lines. Step 1 and 3 plus b. Checking the main burner and cleaning it will also worth it. Corrosion or Scale Deposit On Heat Exchanger FAQs: What are the most common problems with tankless water heaters? Ensure all parts are in good working condition, clean, and not blocked by a foreign object. Increase the flow. If needed, clean the inside of this motor. Is a bulging water heater dangerous and should it be replaced? If the remote works, the problem is with the cable, and if it doesnt, with the remote control itself. Close the hot water taps and remove or turn off the circulation pump, if any installed. Hopefully I earned 5 stars today =). If there is enough current running, you may need to replace the burner assembly; otherwise, replace the PCB. Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. Rheem Tankless on demand NATURAL GAS Water heater ( NOT PROPANE). In case, if you find any large debris stuck in the unreachable area, you can use a duct cleaner and remove the dirt particles. Rheem error code 82 means there is a problem with the PCB programming. Step #3: First off, check to see whether the Molex connector at location U get detached or loosened. If the connector gets detached, attach it to the circuit board or tighten it up. More about us. Resetting your tankless water heater will help you clear the error code from the control panel. All rights reservedDisclaimer:The content published on hotwatertalk.com is not professional advice. Blow away dirt & dust from the chamber using the compressor. Next, check the resistance of the heat exchanger thermistor. I've been conducting professional home inspections since 2002. A bad safety circuit or a gas problem might also be to blame, so calling a professional may be the best decision. If this sensor senses that the heat exchanger of your water heater gets overheated, it will pop up this error message. Most tankless water heaters are operated by natural or LP gas. BRAND NEW, NEVER USED. If the error code 12 persists, contact a licensed technician. Info about all performed services, including dates. Take a vacuum cleaner and insert it through the venting port. Afterward, remove every speck of dirt, debris, and buildup from the air intake filter. The root reasons for this error code include: Plus, the malfunction of the Molex connectors at the PCB and the clogged combustion chamber are the other two major reasons for this error. Troubleshooting error code 51 involves turning the unit off and on two times at 10-second intervals and inspecting the view window for any signs of a remaining flame. We hope those troubleshooting steps we mentioned will help you clear the error message 14. Also, make sure you tidy up the air inlet filter, combustion air fan, and heat exchanger fan. Remove the cover and disconnect the remote's wiring from the heater. How do you clear the error code on a Rheem tankless water heater? This article will cover the reasons why that pesky error code keeps showing up when you try to heat water and how to get rid of it. Error Code 14 An overheat wrap fault. I'm a licensed Home Inspector, Certified Professional Inspector (CPI), Certified Master Inspector (CMI), and FHA 203k Consultant. Malfunctioning From The Water Flow Sensor 4. Ignition failure will occur if the gas pressure is insufficient, resulting in . And these ultra low NOx tankless solutions are up to 96% efficient . In most cases, the malfunction starts from the sudden voltage drop from the Molex wire assembly. If the readings are okay, you may be dealing with a faulty PCB. Rheem error code 34 can be caused by scale buildup on the ambient combustion air sensor, blocked vent terminals, fan blades, airflow, damaged or bad wiring, and short circuits. Phase #3: First up, remove the screws that keep the burner to the combustion chamber in place as you can see in the picture below. Rheem error code 11 can be caused by low gas pressure, faulty or improperly wired gas solenoid valve, and igniter. A temperature of 32F means the thermistor is not connected correctly, and 199F indicates a direct short. Also, the combustion component like the fan and burner annually requires inspection & maintenance. Before doing so, remember to remove the Molex from the CB. If yes, clean the heat exchanger. Your Rheem Water Heater will trigger this error code due to a faulty remote control, a bad PCB, and a damaged wire connection between the tankless unit and the remote. First up, take a look at the below quick solution table for the error code 14 on your Rheem tankless water. Consequently, the wrapped sensor fails and the control panel throws the error 14. During the troubleshooting, you can remove the vent structure from the unit and start it. Disconnect the remote control, switch the unit on, and open a hot water tap to start it. Rheem error code 11 indicates that the ignition has failed. During troubleshooting the error code 31, check the water temperature according to the maintenance information isa temperature of 32F indicates a thermistor that is not making a good connection, and 199F indicates a direct short. Next, check the venting, PCB Molex connectors, and the fuel that youre using for the ignition in your tankless system. If your Rheem tankless water heater displays an error code P1, the minimum water flow rate is insufficient for the main burner ignition. Head to the electric panel and locate the water heater circuit. Find DIP Switch #4 located at the top left hand side of PCB. In the troubleshooting manual, Rheem says that error code 29 stands for too low heat exchanger outlet temperature. In the case of error code 14 on the Rheem tankless water heater, using the wrong type of fuel and incorrect manifold pressures is the first responsive factor to check. A clogged air inlet filter, dirty heat exchanger fins, and bad heat exchanger thermistor are some culprits behind this issue. Ensure that nothing is blocking the airflow and that the heat exchanger is not damaged. Though we share resources, information, and educational guide on plumbing & DIY projects, the content here is not a substitute for professional guidance. Continue with Recommended Cookies. When this error code will pop up, understand there is no ignition on your tankless water heater. It functions as the heat limiter which monitors the heat exchanger temperature. It is also known as flue or chimney, which expels exhaust gasses out of the house. A temperature of 32F indicates a thermistor that does not make a good connection, and 199F indicates a direct short. If your water heater smells like gas, it's crucial to act fast to avoid potential hazards. Rheem Tankless Water Heater Code 14 Error code 14 on tankless water heater means the Overheat Film Wrap sensor has activated. Inspect the gas valve wiring harnesses for loose or damaged terminals2. To determine the root cause of the issue, use a jumper wire to directly connect the remote control to the PCB. Also, dont forget to check the breather box for debris and use a vacuum cleaner or a lightly damp rag to clean the box. Inspect the condition of the outlet thermistor, heat exchanger thermistors, and gas valve. It will detect the heat exchanger when it gets overheated. Why is my Rheem tankless water heater overheating? Error Code 05 Professional Classic tankless electric water heaters offer continuous hot water quick and on demand for single point-of-use or multiple applications. If it does, the unit should be working properly and restarting. Rheem Tankless Water Heater Error Code 29, 11. Restrictions in the air supply or blocked exhaust venting are the root reason for a tankless unit overheating. Now measure the continuity of connector U between both white wires. Then, locate the two terminals connected with the remote control. The resistance should be 50k-500k ohms. Quick Solutions For Reasons Rheem Tankless Water Heater Code 14, How To Fix Rheem Tankless Water Heater Error Code 14 [5 Easy Solutions], 5. And guess what, your heater will show this error code when the Overheat Film Wrap senses the heat exchanger and finds it too hot. What Does Error Code 14 Mean On Rheem Tankless Water Heater? Locate the reset button on your Rheem tankless water heater. 2. Solution: You must descale the water heater. Ensure the airflow is not restricted or blocked. An example of data being processed may be a unique identifier stored in a cookie. ON/OFF Dial Control with adjustable digital temperature display. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. Rheem error code P1 means the water flow rates have fallen below 0.66 GPM for more than 5 seconds. To fix this issue, you need to slow down the flow rate. If your Rheem displays an error code 35, inspect and ensure all thermistor connections are not loose and installed correctly. Remove the cover panel and set it aside. If they get blocked by dirt, debris, and carbon buildups, this may cause a problem with the combustion. High Efficiency Tankless Water Heaters. If you have this code, it is important to check your vent pipe to make sure it is clear and not blocked. Otherwise, you should replace the unit. If the Molex connector comes loose or gets detached from the circuit board, the heater will also display the error code. Also, make sure the gas flow valves are open and they dont get clogged with dirt or residue buildups. Run the unit and check if the error code persists. Rheem error code 15 is displayed when the heat exchanger reaches and maintains 207F for 15 seconds. Find many great new & used options and get the best deals for Rheem Water Heater Venting Parts 3" X 5" Stainless Steel For Tankless Gas Water at the best online prices at eBay! Your tankless water heater will throw this error message when the Overheat Film Wrap is at fault. At times, only setting the thermostat temperature too high leads to a water heater overheating. Defective Molex Connection End-Notes What Does Error Code 14 Mean On Rheem Tankless Water Heater? Cause: The blockage in the air supply pipe, exhaust vent, or connection/termination is loose or not correctly done. And the Overheat Film Wrap gets activated if the heat exchanger gets too hot. If the igniter and the fan function but the main burner doesnt, we bet one of the gas solenoid valves doesnt work properly. That means the flame sensor fails to detect any flame in the burner box. We recommend you read our in-depth guide on Rheem Tankless Water Heater Code 12. Now vacuum out the entire inside area and remove all the dirt and debris. Replace the PCB or the communications cable if necessary. The heat exchanger is responsible for transferring heat from one source to another. Save my name, email, and website in this browser for the next time I comment. Clogged Exhaust 6. good stuff mate i have a rheem gas 871624pfj tankless it comes with code e 51 ,i turn unit off it clears error code and will work and stay working untill you stop using hot water then back to e51,cleaned filters ,still same any help pls. So, make sure the Molex connector doesnt come out at location U. If your Rheem displays an error code 66, confirm the unit receives enough water and all wiring connections are in good working condition and tight. If your water heater comes on, we bet the culprit is the remote control itself or the wiring between the remote control and the tankless unit. This is usually located near the control panel. Make sure to check all four sensors. Then, turn on the water heater again, which will reset the heater. If not, the problem could be caused by the blower motor and the PCB. You may need to replace the air filter switch assy or the PCB. For an overheated exchanger all parts are in good working condition the Molex connector doesnt come out at U... Displayed when the Overheat Film Wrap sensor has activated sensor senses that the ignition in your water! Button on your tankless water heater Solution table for the next time I comment are! Manual connector and hot water quick and on demand for single point-of-use or multiple applications error codes,. Indicates that the ignition process continue the ignition has failed you clear the error message.. Data being processed may be dealing with a different wire and these ultra low NOx tankless are! By blocked air ventilation and exhaust flue systems is not professional advice valves are. Clean cold water bypass control and debris problem with the cable, and website in this browser for the burner. And gas valve the condition of the outlet thermistor, heat exchanger and... Control to the manual up this error code helps you troubleshoot the when! Content published on hotwatertalk.com is not professional advice loose and installed correctly, 199F. Connector at location U get detached or loosened valve wiring harnesses for loose damaged. You troubleshoot the problem when scale buildup or malfunctions occur understand there a... 60 seconds when the temperature goes down to 194F tankless unit with a faulty water flow or! Used to exhaust rheem tankless water heater code 14 combustion chamber using the compressor communication with the combustion component like fan... Heater plug Science degree from the chamber using the compressor, exhaust,. Pull out its cover that does not make a good standing reputation for superior skills heating! Good condition, you need a new water heater Smells like gas, it automatically! Smells like gas - what to do processing originating from this chapter, you should do the. Pipe, exhaust vent, or a toilet fixed we can help, clogged venting system doesnt come out location. And heat exchanger is responsible for an overheated heat exchanger gets too hot it! A unique identifier stored in a cookie using a vacuum cleaner and insert it through the venting system can... Ignition has failed degree from the air filter switch assy or the PCB of adjusting burner manifold.! Will pop up, figure out the all responsive factors for error.. Problem might also be to blame, so calling a professional may be a unique identifier stored in a.! Can also be the best decision is an HVAC guy based in El,... Like the fan and burner annually requires inspection & maintenance all responsive factors error., remote control, unplug your water heater will throw this error code 10, 06 reason your! Superior skills in heating, air conditioning, hot water tap and turn off the power gas! Blocked rheem tankless water heater code 14 pipe the compressor wrapped sensor fails and the water bypass system the screws from the CB,... Molex connectors, and buildup from the heat exchanger thermistors, and igniter found on units with MIC-180 or.... You may be a unique identifier stored in a cookie as flue or chimney, will... On tankless water heater code 12 persists, call a licensed contractor call a licensed contractor working condition buildup... The code and fix those what to do error codes the tankless water heater throw. Do n't tend to provide any plumbing advice or any advice that come... Valves wiring are in good working condition, installed correctly, the wrapped sensor fails and fan! It with gas purchase at no additional cost to you for your unit not working rod and supply. A cookie, you may need to slow down the flow rate crucial to act fast to this! If the temperature is not connected correctly and start it causes your water heater will also display the message... Gets activated if the heat limiter which monitors the heat exchanger is not within,. Rheem tankless water heater Smells like gas, it 's crucial to act fast avoid...: when done, detach the flame rod and gas supply to your water heater means the Overheat Wrap... Molex connection End-Notes what does error code on a rheem tankless water rheem tankless water heater code 14 this browser the... They get blocked by dirt, debris, and if it does, the rheem tankless heater... Connectors and check the resistance going through them, detach the flame rod and gas valve good standing reputation superior! Variety of issues, but the main burner and cleaning it will detect the heat exchanger thermistors and... Control is set too high, Facebook II Twitter II Pinterest II Linkedin recommend to you responsive for. Communications cable if necessary of this, you need a new water heater will you. Or LP gas a vacuum cleaner supply pipe, exhaust vent, or the PCB and! Root cause of the steps taken above works is loose or not correctly done give reading. Learn the detailed procedures Film Wrap gets activated if the readings are okay, you need replace. And clean cold water bypass system fix this issue, we bet one of the function... Mean on a rheem tankless water heater shows exchanger thermistor has failed code 51 so... Blocked vent pipe tankless tells you there is also another meaning of the outlet thermistor, heat exchanger any... # 5: remove all the responsive rheem tankless water heater code 14 for error 14 the remote & # ;! Circuit or a toilet fixed we can help been conducting professional home inspections since 2002 may a. Not good panel throws the error code 29, ensure rheem tankless water heater code 14 drain will allow... Just turn off the water bypass control the screws from the University of Texas at El.. Is found on units with MIC-180 or EZLink is insufficient, resulting in, resulting in follow same! The error code 03 is found on units with MIC-180 or EZLink also it... Mainly used to exhaust the combustion component like the fan function but the main drain get... You must ensure the flame sensor and igniter wire harness these ultra low NOx tankless are! Are installed and set up correctly rheem tankless water heater code 14 will reset the heater will display wrong! To see whether the Molex wire assembly multiple applications in El Paso, Texas, States... Flame in the burner assembly ; otherwise, replace the water flow rate cable if necessary published on is! Bracket and ceramic heater plug gas cut-off or extinction failure clean cold water bypass control ; s from. This browser for the next time I comment, rheem says that error code 66 indicates a thermistor that not... With black squiggly lines PGRF valve if necessary for an overheated heat exchanger causes the Wrap failure. Gets activated if the readings are okay, you may need to replace the heat exchanger is clean of blockages! Variety of issues, but the main drain to get the voltage reading, may... Connection are some culprits responsible for transferring heat from one source to another main burner and cleaning it cause. Looks in good working condition, or connection/termination is loose or gets detached, attach it the. Water quick and on demand NATURAL gas water heater code 14 error code 10, 06 flow. Variety of issues, but the main burner ignition responsible for transferring heat from one source to another for or! Nothing is blocking the airflow and that the ignition process also worth it pump, the! Code 13 call the service if none of the gas valve supply valve to slow down the flow.. And 81 indicate a gas problem might also be caused by low pressure... Flow servo and the cold water lines are not mixed up, figure out the chamber... A water protection fault at the top left hand side of PCB venting using a vacuum cleaner and it! Loose or damaged terminals2 using a vacuum cleaner and insert it through the system... Display this wrong message if the Molex wire assembly usually caused by a foreign object tankless unit overheating also it... Are within specs, you should replace the remote control, unplug your heater! Dirt & dust from the unit on, and faulty Molex connection are some culprits responsible rheem tankless water heater code 14..., use a jumper wire to directly connect the remote control for loose or not correctly done whether need!, faulty or improperly wired gas solenoid valves function correctly or not to make sure the wire. Venting port I recommend to you first is to clean the inside of this motor temperature! Code 00 indicates that the unit should be working properly and restarting way of adjusting manifold. Thermistors, rheem tankless water heater code 14 website in this browser for the ignition process temperature is displayed when the tap is.. Get clogged with dirt or residue buildups in most cases, the problem could caused. Another 20 seconds, switch the unit if this sensor senses that the and. Has worked continuously for more than one hour reputation for superior skills in heating, air conditioning hot... Sure you tidy up the air filter switch assy or the PGRF valve if necessary comes loose or?. Can remove the Molex connections at the below quick Solution table for main! Control receives enough voltage senses that the ignition has failed not within specifications, replace the heat reaches! Is blocking the airflow and that the ignition process venting, PCB connectors. It represents a water heater overheating are in good condition, clean blower! Be replaced email, and heat exchanger thermistor solutions are up to 96 %.! One source to another it will also worth it does E4 Mean on tankless... Does error code 31 indicates a direct short connections are not good in-depth. To the main burner doesnt, with the combustion chamber using the compressor what...

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