Question about Rheem 40 Gallon FVR NATGAS Low WATER HEATER 6YR 22V40SF
Pilot will turn off if thermocouple is not seated fully in the flame, or if thermocouple is bad.
When replacing thermocouple, there are good videos on Utube.
Finger tighten new thermocouple then add 1/4 turn, so the insulator is not crushed.
Make sure new thermocouple is seated fully in pilot flame.
You might also need to clean out burner tubes:
Read manual for troubleshoot checklist, and recommended maintenance and advisories.
Cleaning the burner parts and combustion chamber should be done periodically.
I know it sounds old-hat to say read manual, except each model is slightly different with different recommendations.
Generic 22V40 manual on following link:
Page 23 has a few DIY steps that include replacing gas control thermostat.
New gas control can cost $60 - $120.
Also air in the gas line, low gas pressure, gas shut-off not fully open, pilot orifice clogged.
Problem may be combination of several factors, requiring clean out and replacement of parts.
If repairs cost more than $330, then buy and install new gas water heater from local box store:
Upvote the help.
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Posted on May 19, 2011
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Posted on Jan 02, 2017
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