Question about Rheem 50 Gallon FVR NATGAS Water Heater 6YR 22V50F1

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I have a Rheem 21VR75. I cannot move the dial past the mid portion of "warm" to make the water hotter. Everytime I try to raise the temperature, a few hours later, water spews from the temperature/relief valve tube. What is the problem?

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As for the dial not moving sounds like a mechanical problem with the thermostat.
The T&P valve spewing is a safety device designed to release if the pressure becomes to great 150lb or temps get to great 210 deg. if memory serves. You might use a thermometer to check your water temp. at the tap. The T&P valve have been known to go bad and need replaced so it is possible this is the case. They are fairly inexpensive and easy to replace. If the need arrises to replace the thermostat, I would suggest calling a professional. I hope this helps.

Posted on May 26, 2010

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Posted on Jan 02, 2017

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