Navien Error Code E110 How To Fix

navien tankless la — Troubleshooting Tankless Water Heater Mistake Codes: Navien 4

All tankless water heaters will surprise you with an unexpected mistake code eventually. Unfortunately, it's always at an inopportune time. The same holds true for Navien tankless water heaters.

Although not a pleasant experience, this mistake code, on the other mitt, tin can aid you decide what is wrong with your tankless h2o heater and so that you lot can take appropriate action.

When an fault code occurs, you'll probable hear an audible "beeping" alarm. If you lot accept no hot water, you may take overwhelmed your tankless water heater'south chapters or have at least i fault code.

This guide will discuss and go over the Navien tankless h2o heater error codes, their meaning, troubleshooting, and more than. So permit's take a look.

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Error Lawmaking E001: Heat Exchanger Overheating

Navien error lawmaking E001 is caused by an overheating rut exchanger. To fix Navien fault lawmaking E001, you may need to make clean the strainer and flush the oestrus exchanger. Ensure the flow rate and the PCB voltage at the pump are within spec and that the h2o circulates properly.

We have a how-to guide for tankless h2o heater maintenance. In Like shooting fish in a barrel Maintenance Tips for Tankless Water Heaters w/Photos volition outline how to perform tankless water heater flushing and other maintenance.

Mistake Code E002: Depression Pressure on the Heating Side

Navien error code E002 means at that place is depression pressure on the heating side. Navien error code E002 tin can be caused by depression h2o pressure, then you take to ensure that the unit receives enough water. Yous may also need to restart the unit of measurement to gear up this fault code.

Mistake Code E003: Ignition Failure

Navien mistake lawmaking E003 indicates a failure in the ignition of the unit. If your Navien is displaying an fault code E003, ensure the gas supply is on and working, that the unit is powered, the ground wire is connected, and that the igniter is producing a spark.

Clean or supersede the igniter electrode or the PCB if necessary.

This is also occurs from a power failure. If y'all live in an area that experiences routine blackouts or power failures, you may need to look into a battery backup power supply for your tankless water heater.

Mistake Code E004: False Flame Detection

Navien error code E004 is an indication that the unit is detecting a false flame. To troubleshoot Navien error code E004, confirm that the ground wire is connected correctly and is not loose. In addition to that, check whether the igniter is producing a spark.

Error Lawmaking E011: High Pressure on Heating Side

Navien error code E011 means there is high force per unit area on the heating side. This mistake code may exist stock-still by switching off the unit of measurement, draining the water to release the pressure, and switching information technology back on. If the error persists, check the condition of the sensor. If necessary, replace the sensor.

Error Code E012: Flame Loss

Navien mistake code E012 means there is a flame loss. To troubleshoot and fix Navien error code E012, confirm that the main gas valve is open and the gas pressure is within spec. Also, check the intake air filter, the ground wire, power supply, and the wiring at the estrus exchanger.

You may also need to check and adjust the anti-curt bike timing as it can too cause an error code E012 in some instances.

Fault Code E016: Heat Exchanger Overheating

Navien error code E016 means the heat exchanger is overheating. To fix and troubleshoot Navien error lawmaking E016, switch the unit off for xxx seconds then back on. Check and make clean the cold water filter and strainer, and flush the heat exchanger. Check the high limit switch, the 3-way valve, and the PCB.

Error Code E030: Abnormal Frazzle Temperature

Navien error code E030 is caused by an overheating exhaust. To troubleshoot and gear up Navien error code E030, switch the unit of measurement off for 30 seconds and then power it dorsum on. Check the strainer and the heat exchanger. Make clean the strainer and flush the heat exchanger if needed.

The unit will end working if the frazzle temperature exceeds 230°F (110 °C) for more than ten seconds.

Error Code E046: Heat Exchanger Error

Navien error code E046 means that there is a short at the rut exchanger thermistor. To set Navien error lawmaking E046, check the condition of the wiring at the heat exchanger thermistor. Ensure there are no loose connections and the wiring is not damaged.

Navien error lawmaking E046 can besides point a limit command, in which case it is advisable to contact a licensed contractor for further aid.

Error Lawmaking E047: Exhaust Thermistor Error

Navien error code E047 is an indication of a problem in the operation of the frazzle thermistor. Navien fault lawmaking E047 tin exist caused past an open or shorted exhaust thermistor, in which example to fix this error code, you need to bank check the connection and wiring at the exhaust thermistor.

Error Code E060: Dual Venturi Limit Switch Error

Navien error code E060 means a problem with the dual venturi limit switch. If your Navien displays an error code E060, you demand to bank check the dual venturi connectedness. In some instances, the dual venturi may need to be fully replaced to fix this error code.

Error Code E109: Fan Motor Activeness Fault

Navien error code E109 indicates an error with the fan motor. To troubleshoot Navien error code E109, check and clean, if necessary, the air intake filter and the fan motor. If the error code persists, measure out the PCB'due south voltage and replace the fan if the voltage is within spec.

Error Code E110: Exhaust Blockage

Navien error code E110 means in that location is an frazzle blockage. To fix the Navien fault code, E110 ensures cipher obstructs or blocks the exhaust pipe and that the exhaust pipe is clear. In improver to that, assess the condition of the intake air filter and clean it if necessary.

This fault code can be caused by condensate blockage likewise. If the mistake lawmaking persists subsequently resetting the unit, yous may need to replace the air pressure sensor.

Error Code E127: APS Mistake (Open, Short, Initial Value or No Response)

Navien error code E127 is indicative of a trouble with the air force per unit area sensor (APS). Fault code E127 can be caused past an open up or shorted APS. Switch information technology off the unit and audit the status of the APS. If the mistake code persists after a reset, you may need to replace the APS.

Error Code E205: H/E Outlet Mistake: Thermistor Open or Brusque

Navien error code E205 indicates a problem with the operation of the heating supply thermistor. An open up or shorted thermistor can cause the Navien error code E205. To fix this error code, inspect the heating supply thermistor's status and the pump wiring connectors.

Error Code E218: H/E Inlet Error: Thermistor Open or Short

Navien error code E218 ways in that location is a problem with the operation of the heating return thermistor. An open or brusk thermistor can cause the Navien fault code E218. To fix this error lawmaking, audit the heating render thermistor's condition and the pump wiring connectors.

Error Lawmaking E302: Low Water Force per unit area Error

Navien fault code E302 means that the water pressure level is too low. If your Navien is displaying an error code E302, cheque the h2o feeder valve and the h2o pressure and the water pressure level relief valve. Supercede any parts if needed.

Error Lawmaking E352: High H2o Force per unit area Error

Navien mistake code E352 is indicative of high water pressure. If your Navien displays an error code E352, y'all need to bank check the water pressure is within good rangers and bank check the action of the feeder valve and the h2o pressure relief valve.

Error Code E353: H2o Pressure Sensor Error

Navien mistake code E353 indicates a trouble with the h2o pressure level sensor. An open up or shorted sensor can crusade Navien error code E353. Check and ensure the water pressure sensor and wiring are in good working condition, and there are no loose connections. If needed, supersede the sensor.

Error Code E407: Hot Water Outlet 1: Thermistor Open or Short

Navien error code E407 is a sign of a problem with the hot h2o outlet thermistor. An open or shorted sensor causes the Navien error lawmaking E407. To fix it, cheque the thermistor's condition and wiring. If necessary, supervene upon the thermistor.

Error Code E421: Cold Water Inlet 1: Thermistor Open or Curt

Navien error code E421 means there is a problem with the cold h2o inlet 1 thermistor. An open or shorted sensor causes the Navien error lawmaking E421. To fix it, check the thermistor's condition and wiring. If necessary, replace the cold water inlet thermistor.

Mistake Code E432: Common cold Water Inlet 2: Thermistor Open up or Short

Navien error lawmaking E432 is a sign of a trouble with the common cold water inlet ii thermistor. An open up or shorted sensor causes the Navien error code E432. To fix it, check the thermistor's status and wiring. If necessary, replace the thermistor.

Fault Code E434: Abnormality in Water Adjustment Valve

Navien fault code E434 means there is a trouble with the water adjustment valve. The Navien error code E434 can exist caused by an open or shorter water adjustment valve. Switch the tankless water heater off and inspect the condition and wiring of the valve. If necessary, call for a service.

Error Code E438: Abnormality in Apportionment Pump

Navien fault lawmaking E438 ways in that location is a problem with the circulation pump. To troubleshoot this fault code, check the water supply and circulators, the period sensor, and the pump. In the example of an error lawmaking E438, you may need to replace the pump, flow sensor, or PCB.

Mistake Code E439: Abnormal Menses Sensor

Navien error code E439 is indicative of a problem with the menses sensor. Error code E439 can be acquired by a faulty flow sensor, PCB, or no cold h2o supply.

To ready this error lawmaking, check if at that place is water menstruum while the cascade system is switched off. If there is h2o catamenia, clean and inspect the condition of the flow sensor connector.

Error Code E441: Hot H2o Outlet 2: Thermistor Open up or Short

Navien fault code E441 is a sign of a trouble with the hot h2o outlet 2 thermistor. An open or shorted sensor causes the Navien mistake code E441. To set it, check the thermistor's condition and wiring. If necessary, replace the thermistor.

Error Code E445: Aberrant Mixing Valve

Navien fault code E445 indicates an aberration in the mixing valve. The Navien fault lawmaking E445 is typically caused by a faulty feedback sensor, damaged, opened, shorted, or blocked mixing valve, or a lacking PCB. If needed, phone call a licensed technician.

Error Lawmaking E480: External Tank Thermistor Open up or Short (System Banality Thermistor Setting But)

Navien error code E480 means there is a problem with the external tank thermistor, typically caused past an open (at temperatures below 14°F) or shorted sensor. Cheque the sensor's connectors to ensure they are installed correctly and are not moisture. If required, replace the tank thermistor.

Error Code E515: PCB Error

Navien error lawmaking E515 indicates an upshot with the PCB. In the case of an mistake lawmaking E515, the PCB, PCB's monitoring device, igniter, fan, dual venturi, and the 3-way valve should all exist inspected. Ensure they are in good condition and properly connected to the PCB.

Error Code E517: DIP Switch Setting Error

Navien error code E517 signifies a problem with the dip switch. To troubleshoot and fix Navien fault code E517, you need to check the dip switches on the unit'due south front end panel and the PCB. If the fault persists and everything looks good, telephone call a licensed technician.

Fault Code E593: Aberrant Panel Key

Navien fault code E593 is acquired by a problem with the operation of the front panel keys. To ready the Navien error code E593, you lot need to inspect if the panel keys operate as they should. If they do restart the unit and if they don't replace the front panel.

Error Code E594: Partial PCB Communication Error

Navien fault code E594 indicates a partial PCB advice error or an EEPROM error. Check the unit's PCB for any damage or wiring issues. If the error persists and nada looks out of the ordinary, contact a licensed contractor to evaluate the condition of your Navien tankless h2o heater.

In addition to that, y'all may likewise demand to cheque the condition and wiring of the frazzle sensor, flame rod, and pressure sensor to ensure they are all in good condition.

Error Lawmaking E615: Input and Retentivity Error

Navien error lawmaking E615 can point an input information error or a memory error. Reset the unit and check the PCB and the condition and the wiring of the frazzle sensor, flame rod, and pressure sensor. Mensurate the pressure sensor's output voltage and ensure it is within range. Telephone call for service if needed.

Error Lawmaking E736: Abnormal Cascade Communication

Navien error code E736 indicates a problem with the pour communication. Ensure that the PCB version is compatible and check the set-link cascade cable is installed correctly and the pour settings. If the error does non become away afterwards resetting the unit, contact a licensed technician.

Error Code E740: Outdoor Sensor Error

Navien mistake code E740 ways there is a problem with the outdoor temperature sensor. An open or shorted sensor tin cause Navien error code E740. To set up it, ensure that the sensor'southward wiring is in good condition and working correctly and that the outdoor reset curve is dialed in properly.

See our commodity Can Water Heaters Exist Installed Outside: What You Should Know for more information on outdoor tankless water heater models.

Error Lawmaking: E760: Flushing Alert

Navien mistake lawmaking E760 is a flushing service alert. This error code is not an error code per se merely rather a reminder. If your Navien tankless h2o heater displays an mistake E760, this means that you demand to affluent the heat exchanger.

We take a how-to guide for tankless water heater maintenance. In Easy Maintenance Tips for Tankless Water Heaters west/Photos volition outline how to perform tankless water heater flushing and other maintenance.

Error Code E782: Master Panel Communication Error

Navien error code E782 indicates a communication error within the chief panel. To troubleshoot the Navien error code E782, audit the status and functioning of the PCB. To fix this error, you may need to have a licensed contractor appraise your unit'south condition and supersede the PCB if necessary.

Error Lawmaking E783: OT-remote Controller Error

Navien error code E783 means there is a trouble with the functioning of the OT-remote controller. Audit the condition of the controller and, if necessary, replace it.

Error Lawmaking E785: Abnormal Flow Switch Functioning

Navien error lawmaking E785 means there is a problem with the operation of the external menstruum switch. Bank check the common cold water line and the condition of the menses switch. Cheque if the flow switch is in the off or on position and the thermal block's resistance. If needed, replace the controller or the sensor.

Mistake Lawmaking E787: Device Reset Error

Navien error lawmaking E787 indicates that in that location has been a problem while the unit of measurement has been reset. Please switch off the unit for at least thirty seconds and ensure that everything works correctly, and so power it dorsum on. If the fault code persists, have a technician evaluate the unit'southward condition.

Tankless water heaters final 20 years on boilerplate and during that time you're sure to take at least ane of these Navien fault codes. When buying a tankless water heater, nosotros hope you find this guide helpful and will bookmark it for farther reference.