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21v40-7 rheem water heater. My overflow on top of my water heater is constantly leaking water even after I drain some water out of it and it fills back up again. What might be the problem and any ways to fix it?

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  • Water Heaters Master
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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: I have a Rheem glas fury model 22-40 gas water - leaking

once they leak it's time for a new water heater. ther is no way to repair a tank leak

Posted on Oct 23, 2009

  • 82 Answers

SOURCE: Pilot lighting

1) Open the door on the bottom of the tank to show the burner. 2) Turn the valve to "pilot" and depress. 3) Light the match, (best if you have a candle/grill lighter), and follow the skinny copper tube from the valve to the burner inside (this is called the thermocoupler). At the end of it, you will see the pilot. 4) Once pilot is lit, keep valve depressed for a minute (this warms the thermocoupler, thus sending a signal to the valve saying the pilot is lit). 5) Let go of the pilot button (usually red). 6) If pilot stays on, put the door(s) back on and turn the valve to "on". You will hear/see the gas ignite when complete. Good luck!

Posted on Jan 24, 2010

  • 553 Answers

SOURCE: I have a rheem 41v50 water heater its leaking out

If the water heater itself is leaking it most likely cannot be repaired. If it's leaking at the presure/temp relief valve it could possibly be dangerous and needs immediate attention. If it's the pipes leading to the water heater then it's most likely worth repairing. If the tank is old and rusty it's best to replace it. If it's fairly new it might still be under a manufactures warantee. The last I knew Rheem had warantees up to 11 years, depending on the model water heater. With out actually looking at the water heater it's almost impossible to give a more definite answer, I hope this helped.

Posted on Mar 28, 2010

  • 67 Answers

SOURCE: rheem gas tankless water heater with error code c4 13

problem is inside burner compartment o2 sensor dirty or block..need to have a qualify technician clean it.

Posted on Jul 31, 2010

SOURCE: Rheem 21v40-38 water heater is leaking from the

Sounds like the TP valve is leaking:
Open following links for illustrations and steps.
http://waterheatertimer.org/images/Water-at-bottom-of-tank-400.jpg
http://waterheatertimer.org/How-to-replace-TP-valve.html

Open following link to identify source of leak, and completely check the water heater:
http://waterheatertimer.org/Leaking-water-heater.html

Posted on Sep 25, 2011

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If water is seeping out of cracked drain vale, then replace it.
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I have a 21v407 Rheem water heater that is leaking from the top relief valve. The leak i believe, is from under the valve. what is this problem. and how do u drain this thing?


Shut off the water supply valve over the heater. Shut off the electric or gas to the heater.
If you have any house or basement water valves below the level of the heater, open them and open a valve that is higher to vent it.
If necessary, open the drain at the bottom of the heater and using hose or buckets, lower the level below the relief/thermostatic valve. Be careful, the water is hot and softens even heavy hoses.
Once the water level is down, unthread the downtube (if there is one) from the discharge of the relief valve, unthread the relief valve from the heater and either dope/tape the threads or replace the relief valve.

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Sep 09, 2011 | Rheem Water Heaters

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How do I fill and turn on my rheem 82v52-2


82V52-2 is typical 240Volt 50-gallon electric water heater.
Water heater has to be full of water before turning on power.
This is true for gas and electric water heater.

Once water pipes are connected, you are ready to fill tank.
Turn on cold water shut-off so water enters tank.
Open bathtub spigot on hot side.
When tank is full, water comes out of tub spout full stream.
Let the water run until there is no more air coming out.
Next, open TP lever on water heater for a moment, and this will bleed out last pocket of air.
TP valve is located on upper part of tank, on the side or on top. It is a brass valve with silver-colored lever. Lift lever for a moment and water will exit tank down the overflow tube.
Water heater is full.
Turn on 240Volt circuit breaker going to water heater.

Other links with electric water heater information:
http://waterheatertimer.org/How-to-replace-water-heater-drain-valve.html
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html#cleanelectric
http://waterheatertimer.org/How-it-works.html

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I have a Rheem Steller natural gas hot water service. There is a continuous dribble of water from the pressure valve overflow, even when the heater is not heating. I have tried easing the valve a few...


Yes, Turn the knob on the gas valve to off. Turn off the incoming water line into the water heater. If you have a valve on the outlet turn it off too. Open the drain at the bottom of the heater to drain a little water from heater. You can then lift the lever on the temperature/pressusre relief valve to let a little air in to release the vacuum and let the tank drain. If the relief is in the side let it drain a bit longer so the water level is below the outlet. Be sure to re-install the down pipe on the relief valve on the new valve. You should drain the a few gallons of water at least once a year from your heater, and you should exercise your temperature relief valve once a year to be sure it will function. If your new valve leaks suspect your temperature control allowing the water to get too hot.

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you need to replace the water heater, the tank is cracked and under pressure so it is forcing the water to the nearest opening

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