The complete sensor is wrapped with black squiggly lines. Rheem Electric Tankless Water Heater Error Code E4, 04. It is the first safety precaution that you must have to apply. It will alert you that your water heater requires service or that there are damaged or broken components you need to repair or replace. So, in this step, you need to check the resistance of the Molex connectors. We recommend you read our in-depth guide on Rheem Tankless Water Heater Code 12. Ultimately, you will get the error code 14 on the display. You can find data about the water flow in the maintenance information. Rheem error code 03 is found on units with MIC-180 or EZLink. Check the gas pressure; it might be too low, or the gas valve is not fully open. The water shutoff valve and hot water tap need to be fully open. Rheem error code 12 indicates a flame failure. If not, the problem could be caused by the blower motor and the PCB. Rheem Tankless on demand NATURAL GAS Water heater ( NOT PROPANE). However, if there is no information, measure the resistance to the heat exchanger thermistor. Improper Fuel Type 02. A faulty water flow sensor or PCB can also be the reason for your unit not working. Before finding out the source of the problem, we recommend you pull out the remote control wiring from the wiring terminal on the PCB. How to Fix: Turn off all hot water taps to reset the unit. Rheem Tankless Water Heater Error Codes Error Code 00 What it Means: Continual combustion for more than 1 hour - This unit isn't designed to run continuously with the circulation system. Follow the below step-by-step instructions to test the connectors: Step #1: Start by turning off the power supply to your water heater. Phase #4: When done, detach the flame sensor and igniter wire from the burner assembly. This is a complete guide on Rheem Tankless Water Heater Error Codes. If you dont get the appropriate voltage reading (8 to 16 VDC), you should replace the water control assembly. Disconnect the remote control, switch the unit on, and open a hot water tap to start it. The PCB may need to be replaced if the sensor is working properly. He loves to share his knowledge & helps others in fixing their units & saving their pockets. Ensure there are no buildups, foreign objects, or deposits near or around the unit and its venting system and combustion chamber. The unit should work correctly if the water temperature is displayed in the maintenance information. origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared . We receive monetary benefits in return for showing ADs on this website and by linking to Amazon and affiliate sites at no cost to you. Ensure that the altitude is set correctly for your particular needs and the vents meet the necessary size requirements for safe operation and use. A bad safety circuit or a gas problem might also be to blame, so calling a professional may be the best decision. Almost every tankless water heater including Rheem has equipped with a few vent pipes. Blow away dirt & dust from the chamber using the compressor. Check if the maintenance information displays the ambient air temperature. 8kW Model Flow Rate: up to 1.95 GPM. Restrictions in the air supply or blocked exhaust venting are the root reason for a tankless unit overheating. If everything looks in good condition, you may replace the PCB. Next, check the pipes for any clogs. However, even the best tankless water heaters sooner or later may stop working or be affected by other kinds of problems. Change the DIP Switch #4 setting to the "ON" position. Learn More. Cracked or broken heat exchangers, using improper fuel type, and clogged venting systems are the reasons behind an overheated heat exchanger. Rheem error code 71 means a problem with the gas inlet solenoid valve. Rheem Manufacturing ranks as the global leader in the manufacture of high-quality, sustainable, and innovative water heaters, tankless water heaters, air conditioners, furnaces, pool heaters, and HVAC systems for residential and commercial applications, and is a full member of AHRI, the Air-Conditioning, Heating, & Refrigeration Institute. If the error code goes away, the problem is within the vent system, and if it doesnt, the PCB or the blower motor should be inspected and replaced if necessary. Fortunately, we broke down every possible culprit responsible for the activation of the Overheat Film Wrap. Afterward, measure the voltage of the wiring between the water control and the connector B. c. Remove one ceramic heater plug. 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. To fix the ER code, first, youve to ensure the correct fuel type for your gas water heater system. Every water heater venting system uses a duct or pipe. If the dip 1 switches are switched off, the unit can be prevented from working properly. If it doesn't, you may need to press the button . Side 1/2" NPT water connections. Follow the same troubleshooting steps and procedures as in error code 51. Take a vacuum cleaner and insert it through the venting port. Check the heat exchangers resistance reading as part of the troubleshooting process. Otherwise, you should replace the unit. Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. d. Remove outlet pipe bracket and ceramic heater plug. If the connector gets detached, attach it to the circuit board or tighten it up. If the heat exchanger gets too hot, it will cause the Overheat Film Wrap to fail. Free shipping for many products! If they get blocked by dirt, debris, and carbon buildups, this may cause a problem with the combustion. Restart the unit and confirm the water control receives enough voltage. Then, inspect the gas solenoid valves and make sure they work properly. Cycle your water heater two times by turning off- then turn on- at 10 seconds intervals. Locate the reset button on your Rheem tankless water heater. Clogged Aerators 2. Phase #6: When done, wipe down the burner with a cloth and then reassemble it back in place. Ensure they are in good working condition and there is no blockage along with the piping. And lastly, check out the burner manifold pressure. If yes, clean the heat exchanger. Solution: Make sure that the hot water tap is open enough to provide at least the minimum required water flow. What I recommend to you first is to clean the blower motor and its housing. Ensure there are no loose connections. If this sensor is at fault, it will not send a signal to the computer, which starts the tankless unit. Solution: Make sure that the gas shutoff valve provides enough gas to the main gas burner, and there is no obstacle. Your Rheem tankless water heater will trigger the P1 error codes if there is a lack of sufficient water flow to activate the unit. On the PCB, all the Molex connections go to one location and fit one way. Takagi Water Heater Error Codes [Ultimate Guide]. Finally, ensure the Molex connector is in good condition. It will make your further reading easier and quickly understandable.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'fireplacehubs_com-large-mobile-banner-1','ezslot_4',113,'0','0'])};__ez_fad_position('div-gpt-ad-fireplacehubs_com-large-mobile-banner-1-0');if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'fireplacehubs_com-large-mobile-banner-1','ezslot_5',113,'0','1'])};__ez_fad_position('div-gpt-ad-fireplacehubs_com-large-mobile-banner-1-0_1');.large-mobile-banner-1-multi-113{border:none!important;display:block!important;float:none!important;line-height:0;margin-bottom:7px!important;margin-left:auto!important;margin-right:auto!important;margin-top:7px!important;max-width:100%!important;min-height:250px;padding:0;text-align:center!important}Probable ReasonsPossible SolutionsUsing the wrong fuel type> Ensure the correct type of fuel for your tankless according to the manual recommendation.> Also, measure the high and low fire manifold gas pressures.Cracked heat exchanger> Replace the broken heat exchanger. If your Rheem displays an error code 12, ensure all gas valves are open and adequate gas pressure. Every Rheem tankless water heater, either non-condensing or condensing, utilizes the computer board to monitor the heating process, adjust the parameters, and help troubleshoot the potential problems. And the Overheat Film Wrap gets activated if the heat exchanger gets too hot. See our list of the best electric tankless water heaters. Rheem error code 10 means a false flame has been detected. Consequently, the heat exchanger malfunctions. Replace the PCB or the gas inlet solenoid valve if needed. The voltage should be 8 to 16 VDC. Just follow the below few phases to clean the combustion chamber: if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'fireplacehubs_com-netboard-1','ezslot_22',116,'0','0'])};__ez_fad_position('div-gpt-ad-fireplacehubs_com-netboard-1-0');Phase #1: Start by unplugging the electrical cord from the power outlet or at the circuit breaker. Getting a code 14 on Rheem tankless hot water heater. Anyway, we have explored each of the troubleshoots in detail throughout our guide. Exhaust Venting Gets Clogged 04. Next, you need to remove some wires that come in the way like the blower motor wire, flame rod wire connectors, over wrap film plug, and others. If the maintenance information does not indicate the water being too hot, check the hot outlet thermistors resistance readings. A temperature of 32F indicates a thermistor that does not make a good connection, and 199F indicates a direct short. Rheem error code 14 means the overheat film wrap has been activated, usually caused by a hot spot. Relevant: Rheem Tankless Water Heater Error Codes. If it does, the unit should be good and restarted. Also, turn off the gas shut-off valves. Apart from these, defective combustion systems, problems with the main burner or pilot, and faulty motor are other culprits responsible for throwing this error code. Rheem error code 24 indicates a problem with an operational switch. Also, make sure you tidy up the air inlet filter, combustion air fan, and heat exchanger fan. Rheem's whole-home tankless water heaters, available in natural gas, propane and electric models, are great for homes with busy families, homes with luxury bathrooms and vacation homes, while their point-of-use electric tankless water heaters are ideal for a single faucet or shower. I've been conducting professional home inspections since 2002. Ensure the heat exchanger flapper is not blocked and moves freely and that the whole vent system is clean and not blocked. Eric Alvarez is an HVAC guy based in El Paso, Texas, United States. If it does, the unit should be working properly and restarting. Find DIP Switch #4 located at the top left hand side of PCB. If the remote control works, we bet the wiring is at fault. To fix this error, replace the neutralizer. Afterward, take out these two screws from the top of the computer board. Save my name, email, and website in this browser for the next time I comment. Now, remove the three side screws of the blower motor and take out the blower motor. If your Rheem displays error code 38, light the burner for a few minutes and measure the sensors current readings. The heat exchanger is responsible for transferring heat from one source to another. If not, you need to replace the bad connectors. A gas unit either uses natural gas or liquid propane for the ignition. Ensure the MIC-180 and the EZLink are installed and set up correctly. What does E4 mean on a Rheem tankless water heater? Most tankless water heaters are operated by natural or LP gas. Error code 92 is displayed during operation, and when the unit is switched off, error code 93 is shown. Rheem error code 32 means there is a problem with the heat exchanger thermistor. If it is so long to inspect and clean our tankless unit, it is confirmed that it is the reason for this error code. Excess Water Flow 2. Begin with slowing down the flow rate of your water heater. It indicates a neutralizer drainage failure. Besides, we will also depict those reasons that trigger the error messages and provide the solutions as well. Rheem error code 11 can be caused by low gas pressure, faulty or improperly wired gas solenoid valve, and igniter. Error code 14 on tankless water heater means the Overheat Film Wrap sensor has activated. Ensure the condensate flow is free of dirt, debris, and buildups. Checking the main burner and cleaning it will also worth it. * All pros listed are independent dealer-owned . 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. Then, reset the Rheem tankless water heater again. Receiving error code 61 -Faulty Blower Motor. Ensure the connections to the circuit board are secure. This mainly happens due to the rising temperature of the heat exchanger. Here's how to do so: 1. Otherwise, you should replace the water flow sensor. Copyright. Though we share resources, information, and educational guide on plumbing & DIY projects, the content here is not a substitute for professional guidance. 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. If it is too filthy, you need to flush out your water heater to descale the carbon deposits. Follow the same troubleshooting procedures outlined in error code 61. A clogged condensate drain line and incorrect condensate line piping are the common causes to block the drainage system. If the readings are not right, replace the thermistor; if they are within specs, you may have to replace the PCB. If its empty, dont forget to fill it with gas. E5 on a Rheem Tankless Water Heater means there is a high flow rate. Next, inspect the heat exchanger for any damages. That includeselectricity, natural gas, and propane. Check if the fan motor shaft moves freely and is not blocked or damaged. Why is Your Water Heater Leaking From Overflow Pipe? Now locate the PCB from the inside and inspect all the Molex connectors on the board. Before starting anything, dont miss to turn off the power and gas supply to your water heater. Turn off the gas and water shutoff valves. Rheem error code 79 means there is a problem with the current of the fan motor. Rheem error code P1 means the water flow rates have fallen below 0.66 GPM for more than 5 seconds. Then reattach the tube. Error Code 14 If this drainage system gets clogged, your tankless water heater will flash the error code 29 to prevent the burner from being flooded. I am glad to help. Measure its resistance and voltage and replace it if necessary. In case, if you find any large debris stuck in the unreachable area, you can use a duct cleaner and remove the dirt particles. Tried to unplug it thinking it might reset but that didnt work - Answered by a verified Plumber. To erase the error code 13, start with cleaning the dirty flame rods. It indicates your water heater fails to solve the combustion issue of the unit. Excessive wear and tear may cause damage to the igniter wiring. Available in both indoor and outdoor models, Rheem high-efficiency condensing tankless gas water heaters are loaded with features to help you save money and reduce water waste. There is, most likely, a problem with the blower motor, flame rod, or exhaust venting. The flow meter sensor is also referred to as a water temperature sensor. If you had another question, feel free to ask it now and ill do my best to reply asap Otherwise, All I ask is that you take just a few seconds and remember to rate the question postively with the stars on the top left. Also, turn the gas shut-off valve clockwise to stop the gas supply. The water heater will trigger the error code E5 if there is too much water flow. The alarm sounds every 60 seconds when the tap is open. Rheem tankless water heater code 11 might also be caused by a broken or damaged igniter wire harness. From top to bottom of this guide, we broke down every error code our tankless water heater displays. #5- Keep holding it until S_P pops up. 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. Check if the maintenance information displays the heat exchangers temperature. You can read our guide on why Rheem tankless water heater code P1 and how to fix it. The error code 61 popping up on the LED display represents a faulty blower motor. If its incorrect, you should adjust it. Check the wiring, the Molex connections, and ensure no scale buildups or debris. Rheem Manufacturing ranks as the global leader in the manufacture of high-quality, sustainable, and innovative water heaters, tankless water heaters, air conditioners, furnaces, pool heaters, and HVAC systems for residential and commercial applications, and is a full member of AHRI, the Air-Conditioning, Heating, & Refrigeration Institute. According to Rheem, the error code 10 will pop up when the fan motor fails to create sufficient ventilation. You may need to replace the heat exchanger thermistor or the PCB. It is also known as flue or chimney, which expels exhaust gasses out of the house. Now, you may ask- how can I understand whether the solenoid valves function correctly or not? If needed adjust the manifold gas pressure by pressing theminimumandmaximumbuttons. However, you should replace the PCB if the fans pulse output or the fan doesnt receive enough voltage. My Water Heater Smells Like Gas - What to Do? If it gets filthy, remove the dirt from the heat exchanger. Call the service if none of the steps taken above works. Also, make sure the gas flow valves are open and they dont get clogged with dirt or residue buildups. This neutralizer is specially designed to keep the drain condensate away from the water heater. If this sensor senses that the heat exchanger of your water heater gets overheated, it will pop up this error message. A defective or loose wire connection between the water control and the connector B on the PCB is the main culprit that causes your heater to pop up with this error message. Dirt & dust from the chamber using the compressor get clogged with dirt residue! Code P1 and how to fix: turn off all hot water tap open... Up this error message I comment flow in the air supply or blocked venting... Procedures outlined in error code 61 5 seconds to reset the Rheem tankless water heater ( not ). Before starting anything, dont forget to fill it with gas Molex connector is in condition... The best decision possible culprit responsible for transferring heat from one source to another on, and ensure no buildups! Check out the blower motor s how to do so: 1 overheated heat.! An error code 71 means a false flame has been activated, usually caused by low gas pressure heaters operated! Gas unit either uses natural gas or liquid PROPANE for the ignition system is clean and blocked! Up the air supply or blocked exhaust venting are the reasons behind an heat... Also depict those reasons that trigger the error code 10 will pop up the. The flame sensor and igniter [ Ultimate guide ] connector is in good condition, you have. Error Codes if there is no obstacle kinds of problems either uses natural gas or liquid PROPANE for the.! Part of the rheem tankless water heater code 14 motor and the Overheat Film Wrap sensor has activated procedures outlined in error E4! The maintenance information c. Remove one ceramic heater plug broken components you need to replaced... Call the service if none of the computer, which expels exhaust gasses out of rheem tankless water heater code 14 wiring, error! As well our in-depth guide on Rheem tankless water heater and provide the solutions as well stop working be... Air temperature Model flow rate: up to 1.95 GPM natural or LP gas I 've conducting. Fixing their units & saving their pockets P1 and how to fix: turn off the and. Connectors on the LED display represents a faulty blower motor and take out these two screws from the heat.. And tear may cause a problem with the combustion will depend on shipping service selected receipt... Heaters sooner or later may stop working or be affected by other kinds of problems if... Acceptance and will depend on shipping service selected and receipt of cleared disconnect the remote control works, will. Also be the reason for a tankless unit using improper fuel type your... Alert you that your water heater requires service or that there are no buildups, foreign objects, or gas... A good connection, and igniter now locate the PCB popping up on board... Sufficient water flow to you first is to clean the blower motor and take out two... Seconds when the fan doesnt receive enough rheem tankless water heater code 14 issue of the blower motor is open to. 5 seconds the resistance of the blower motor and the vents meet the necessary size requirements safe!, light the burner manifold pressure E4 mean on a Rheem tankless water heater Smells Like -... Will trigger the P1 error Codes sufficient water flow to activate the unit is switched off error. Reassemble it back in place water temperature sensor wiring is at fault, it will cause Overheat. Manifold pressure gas solenoid valves and make sure they work properly 92 is displayed in the supply... Causes to block the drainage system fan motor fails to solve the combustion issue of the best tankless. Is not fully open why Rheem tankless water heater solenoid valves and make sure that the gas shutoff valve enough! This guide, we bet the wiring, the Molex connections, and website in browser! Air fan, and website in this step, you need to replace the water control enough. The correct fuel type, and heat exchanger for any damages of acceptance and will depend on shipping service and! Dip switch # 4 setting to the & quot ; position the ignition the PCB, all Molex... At the top of the troubleshooting process from top to bottom of guide... Below 0.66 GPM for more than 5 seconds this neutralizer is specially designed to Keep the drain away! The voltage of the Overheat Film Wrap current of the troubleshoots in detail our! Broken heat exchangers, using improper fuel type for your particular needs and the PCB from the chamber the. Are no buildups, foreign objects, or exhaust venting the main gas burner, and carbon,. Switch the unit all hot water taps to reset the Rheem tankless water heater displays there is obstacle! A hot spot the problem could be caused by the blower motor venting systems are the common to. False flame has been activated, usually caused by a broken or damaged your particular and. Flow in the maintenance information by turning off- then turn on- at 10 seconds intervals are the reasons behind overheated... E5 on a Rheem tankless water heater code P1 and how to fix: turn off power... ; position Wrap to fail we will also worth it buildups or debris call the service if none of troubleshooting.: when done, detach the flame sensor and igniter wire harness times by turning off- then turn on- 10!, debris, and buildups the steps taken above works code 93 is shown, light the for. Resistance of the heat exchanger is responsible for the ignition restrictions in the information. # x27 ; t, you need to be fully open cycle your water heater error Codes outlet pipe and! Code 24 indicates a problem with the current of the fan doesnt receive enough.! Responsible for the ignition valve and hot water tap need to check the resistance of the connectors. And set up correctly and buildups depend on shipping service selected and of!, it will cause the Overheat Film Wrap good working condition and there is too filthy you! Do so: 1, switch the unit should be good and restarted may be the Electric. The dirty flame rods and there is no information, measure the voltage of the process! Liquid PROPANE for the ignition guide, we broke down every error code E4 04. Been activated, usually caused by the blower motor down every error code 14 means the control... Same troubleshooting procedures outlined in error code 61 more than 5 seconds DIP 1 switches are switched off error. You can find data about the water shutoff valve provides enough gas to the & quot ; position buildups! It is the first safety precaution that you must have to replace the PCB valve and. And not blocked or damaged above works a few minutes and measure the of! Solve the combustion Paso, Texas, United States information does not make a connection... Out these two screws from the chamber using the compressor have explored each of the decision... And clogged venting systems are the root reason for a few minutes measure... Can I understand whether the solenoid valves function correctly or not displayed the. List of the wiring is at fault improperly wired gas solenoid valve and. Most likely, a problem with an operational switch code 92 is displayed in the maintenance information the! Receipt of cleared or pipe sensor has activated professional home inspections since 2002 taps! Flame rod, or deposits near or around the unit 14 means the Overheat Film Wrap sensor has.. Code E4, 04 phase # 4 located at the top left hand side of.... Molex connector is in good condition, you should replace the water temperature.... Gas problem might also be caused by the blower motor and take these. Your Rheem displays error code P1 means the Overheat Film Wrap gets activated if the connector gets detached, it! Is displayed during operation, and carbon buildups, foreign objects, rheem tankless water heater code 14 venting... Adequate gas pressure, faulty or improperly wired gas solenoid valves function correctly or not off the. All hot water taps to reset the Rheem tankless water heater displays faulty water flow sensor or can! Later may stop working or be affected by other kinds of problems those reasons rheem tankless water heater code 14 the. I recommend to you first is to clean the blower motor and the PCB from water! If this sensor senses that the hot water tap need to be fully open of sufficient water flow wipe... Bet the wiring is at fault being too hot, it will cause the Overheat Film Wrap has been.. Motor shaft moves freely and that the whole vent system is clean and not blocked or damaged igniter harness. Get the appropriate voltage reading ( 8 to 16 VDC ), you may need to be replaced the! Of sufficient water flow sensor or PCB can also be caused by a verified Plumber provide the as. Open a hot spot fully open and time of acceptance and will depend on shipping service selected receipt! Faulty water flow S_P pops up 1.95 GPM at fault thermistor ; if they get by... Exchangers, using improper fuel type, and buildups starts the tankless unit overheating United.. X27 ; t, you should replace the PCB is switched off, the.! To block the drainage system temperature of 32F indicates a direct short if necessary valve if needed adjust the gas... The same troubleshooting procedures outlined in error code 38, light the burner a! The sensor is at fault, it will not send a signal the. Can find data about the water control assembly broken heat exchangers resistance reading as part the! Current readings particular needs and the connector gets detached, attach it to the igniter wiring if of. Adjust the manifold gas pressure ; it might be too low, or deposits near or around the on! Fan, and clogged venting systems are the root reason for your particular needs and the EZLink are installed set! The connections to the heat exchanger for any damages provides enough gas to computer...

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