Rheem Electric Tankless Water Heater Error Codes

This chart lists the rheem error codes along with their possible problem and solution.

Rheem electric tankless water heater error codes.

If you see an error code 00 your rheem tankless water heater has been running continuously for over an hour. This could be because the water tap is not fully opened therefore water flow is low which causes excessive temperature of the heat exchanger. Use your rheem heater manual as a reference when performing any repairs and make sure to use the technical support number 1 866 720 2076 whenever you re unsure what to do. 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.

Open the hot water faucet fully if the error code is 15 indicating a low hot water supply. All pros listed are independent dealer owned. Have a different tankless water heater brand that needs troubleshooting. Shut off all of the hot water taps.

They re generally displayed on the unit itself on the screen. Step 4 check the vents on the tankless water heater and keep the vents and grilles free of obstruction if the error code is 05 wipe the vents and grilles with a damp cloth to remove dirt or debris. Once flame sense is lost the control will almost immediately drop out and unit goes into retrial and possibly soft and hard lockouts modes. However some models require you to install an app on your phone where you ll receive the updates.

When your water heater finds a problem it displays an error code in the led display on the remote control or the front panel. Rheem water heater error codes are pretty easy to understand. When you get an error code 15 this means a boiling safety warning. The most common fault code is 6 3.

Rheem tankless error codes your rheem water heater has an electronic diagnostic system built directly into it. Pilot flame is lifting off the pilot orifice causing the pilot igniter sense rod to lose flame sense rectification. A foreign object may also be present in the combustion chamber and exhaust pipe work. Reliable water heaters tankless water heaters and hvac systems.

If you have a circulation pump installed turn it off or remove it.