Rheem Electric Tankless Water Heater Error Code E5

The e5 error code refers to the pressure switch which can be caused by a motor problem or the voltage of the power supply is too low.

Rheem electric tankless water heater error code e5. Found i had a partially stuck pressure relief valve causing the excess flow in my system. My rheem tankless water heater will run a minute and kick off putting out the 13 code. Completely draining the unit out of water shut off gas valve. As always your best resource is your owners manual since it ll have the specific information you need for your model.

Company s make changes through the years and rheem has been in business a long time with a wide range of tankless water heaters. The water is heated on demand only which reduces energy consumption as well as overall energy costs. Rheem tankless water heaters use a condensing technology to offer continuous hot water without the use of a large water tank. If you re sure that the power source is within the required amount and the same issue persists try to reset your heater by.

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. My unit is 2 years old. The fvi12 has an over temperature sensor to prevent the water heater from running at excessive temperatures.