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

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I just pumped out the 7 inches of water in my basement that extinguished my flame on the rheem 21v40 gas water heater. How can I relight the pilot safely?

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Manufactures suggest replacing water heater after it has been flooded.
Otherwise replace the burner and pilot assembly.
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Posted on Mar 11, 2011


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Reliance 606 water heater was in flooded basement had few inches of water up to it now wont light. What to do?

This could be a tough one without being able to examine it. First, have you precisely followed the relighting instructions printed on the heater (turn the knob to "pilot," hold down the button, etc.)? One other thought: the gas pressure to the pilot flame is very low - if some water got into its little supply pipe it could keep gas from getting to the pilot burner device. You would have to disconnect the pilot tube from the gas controller valve and blow it clear, then try again. Dealing with this type of gas problem can create dangerous conditions if not done properly. If water got into the gas controller valve (the one with the knobs and buttons) it will have to be replaced. If unsure, consult a plumber.

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Water heater goes out

The burner needs to be adjusted

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Have an out of warantee Rheem Glas Fury Model 4250 (serial number RHNG 1202h03437) that has stopped working as this was in the middle of all the chaos of hurricane/tropical storm Irene I am not sure ...

Open following links to help identify product and download typical manual:

Typical manual:

Usually, the instructions for lighting water heater are on side of tank, and located at gas control.
If you add a comment and describe gas control in detail, and add if model has piezo igniter, I might be able to provide specific instructions for that gas valve.
Also include if wires on bottom of gas control go to a switch located on combustion door.

Make sure basement has plenty of fresh air to support combustion.
Clean combustion parts and air intake.
Check that thermocouple sits inside pilot flame.
If no gas comes out of gas control when trying to light water heater, then check that gas valve handle is parallel with gas line. Gas pressure might be low. Gas might have air in line.
If pilot lights but will not stay lit, then thermocouple might be bad.

Many factors can contribute to water heater not lighting or staying lit.
Get started, and then add a comment with steps taken so far, and what you observe for more help. I will be here most of the evening. Aug 1, 2011.

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Sep 01, 2011 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

Rheem NatGas hot water heater model 41V50, basement flooded pilot went our how do I relight?

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.

Mar 14, 2011 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

I have a Rheem direct vent gas water heater. When

If you are not seeing a spark at the pilot assembly where the pilot flame lights, then it is probably not sparking in the right place. You may have a short in the wire or a cracked porcelain ignitor, causing it to spark elsewhere. If you can remove the access panel, you may have to relight the pilot manually with a butane lighter. To resolve the issue of the flame blowing out, make sure your vent outside has a cap on it and that the vent is not partially blocked with a bird nests, etc. Hope this helps. Douglas

Jun 27, 2010 | Rheem 50 Gallon FVR NATGAS Water Heater...

2 Answers


There is air in the gas line. The best way to get the air out, is with the gas on, loosen the nut that attaches to the gas valve and make sure you can smell a little gas, then reattach the gas line, making sure everything is tight, and then relight the pilot making sure to hold the pilot light button down for at least 1 minute. Please rate

May 24, 2010 | Rheem 40 Gallon FVR NATGAS Low WATER...

2 Answers

Have replaced to thermal coup.s and still cant keep the gas lit on mine? must relight it every time i need hot water, have had a tech out twice its now 2 yrs old and were still relighting the thing. no...

make sure coupling is in the flame and is mounted securely at all points.. and that it is tighten tight to gas valve..after that it could be the gas valve???

Mar 20, 2010 | Bosch & Tankless LP Hot Water Heater

1 Answer

Rheem 21V40-38 gas pilot will light, but the burner will not come on.

As long as you have a good strong pilot flame under thermocouple in the first place, try this. Shut gas valve off, and clean thermocouple above pilot flame. Best way is to remove it, and clean it with fine steel wool, or fine emery cloth, at both the probe end that sits over pilot flame, as well as undo it from gas valve and rub contact surface on other end with steel wool as well, and if you have any electrical cleaner, give it a squirt in spot where thermocouple was removed from, and clean it out well, and if no electrical cleaner, roll a piece of steel wool up small enough to get it in that hole and twist it on the surface where thermocouple meets, to clean the surface . If that works, great, if not, either thermocouple is defective, or bad gas valve.

Jan 03, 2010 | Rheem 50 Gallon FVR NATGAS Water Heater...

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