I have a Rheem ProG50-38N water heater. It has turned off and I cannot relight it. The knob on top is supposed to turn to the "off" position, but it will not go into that position.

SOURCE: Rheem water heater with powerglow ignition wont re-light

I have fixed mine. The problem part is the Ignition Control module. It is made by Robert Shaw part # SP10758. I paid $93 plus shipping.

Works great now. A repairman wanted to sell me a gas valve for $488.
Watch out for these people.....

SOURCE: Rheem hot water heater, gas, pilot went out. Will

You can try cleaning the thermocouple with a piece of emory clothe or replace the thermocouple. Watch and see if the moisture continues, it just be condensation from humidity from the lack of heat under there. If the moisture continues, you may have an early leak.

Ned C Cook

• 3433 Answers
• Posted on Jun 15, 2009

SOURCE: can no light up a new Rheem 22V40FN water heater

Air in system. Make sure there is no sources of ignition and loosen the supply line at the heater and purge all air. Mske sure your source valve is open. then turn off yje heater after tightening the line. Let sit in off position for 15 minutes. Then turn therm knob to on slowly and then over to pilot, depress pilot button and hold a ffew seconds. Pilot should light. If so, hold for a few and then release and turn ti on position. Good Luck.

SOURCE: Rheem water heater turns off by its self

Flashing code 76 is lost communication between the remote and the burner control assembly CCA (circuit card assembly). The CCA is still under warranty if purchased within the last 3 yrs. Contact Rheem customer service and have your Mod. and S/N available....explain to the agent you are recieving - flashing code 76...they'll walk you through the process.

SOURCE: Rheem NatGas hot water heater model 41V50,

At the controls there should be a knob that says " Pilot"... "ON" Turn the knob to pilot and hold it down while lighting the pilot lite. Keep holding it down until it gets warm enough that when you leave it up the pilot stays on. Once the pilot lite stays on on it's own turn it to on.