I unplugged it and now it is giving a 2 13 76 1 codes.
Rheem electric tankless water heater error code e5.
Check for proper grounding and that the device is receiving gas of the right type and pressure examine the flame rod to ensure it s connected and has no carbon buildup.
Disconnect the remote control pc board and all wiring harnesses then reconnect.
My unit is 2 years old.
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.
My rheem tankless water heater will run a minute and kick off putting out the 13 code.
The fvi12 has an over temperature sensor to prevent the water heater from running at excessive temperatures.
All pros listed are independent dealer owned.
Ensure the condensation collar and proper venting material was.
The water is heated on demand only which reduces energy consumption as well as overall energy costs.
The heater can t maintain a flame.
While in operation if the outgoing water or internal components achieve excessive temperatures the over temperature sensor will automatically shut down operation and the water heater will display an e5 error code.