Question about Rheem 40 Gallon FVR NATGAS Low WATER HEATER 6YR 22V40SF

1 Answer

T and p valve leaking and i replace it and pressure pushes out hot water

I replace the t&p valve and pressure pushes out hot water when the water heats up

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  • Ronald Lockhart Dec 06, 2014

    Hi Levi Johnson, I want to help you with your question, but I need more information from you. Can you please add details in the comment box?
    I'm guessing this was the safety relief valve you replaced.After replacement you need to turn water back on to fill the tank (pull lever on relief valve until water flows without any air), drop lever back to normal position and it should work...pressure relief valve needs to be rated for same pressure as original.

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  • 10 Answers

It sounds like it's doing it's job, by not letting your water heater turn into a missile, or exploding....The "T" in T&P stands for temperature. When it gets too high, the valve will open. The "P" in T&P stands for pressure. When IT gets too high, the valve will open. When they both get too high...you know the rest...The condition can be caused by many factors.
1. The house "pressure reducing valve" is letting in too much pressure. Any more than 80 lbs. is too much. 50 to 75 is good.
2. Hot water expansion in a closed loop system...no "prv" or "water meter" bypass...To fix, you can install a small "expansion tank" above the water heater. It will allow the extra bit of water to go somewhere temporarily, Letting the T&P valve stay closed. Installation is always on the hot outlet side, because high efficiency water heaters use a "check ball" in the factory installed cold water inlet nipple, which also doubles as a dip tube. (lets cold water into the heater at the bottom)
When a gas fired water heater turns on, there is a pretty fast spike in both temp. and press.
3. The gas control valve itself, has a non resetting 190 degree, "high limit" safety shut off feature. IF that were to fail, the control would run away temperature wise, but I have never heard of one failing.
regards!

Posted on Dec 06, 2014

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2 Answers

My hot water tank is continually leaking ? I shut off the valve at the top of the tank and it is still leaking ??


They wear out especially if they are older. You did not say what make and model it is but if there is water coming out the bottom it is time for a new unit. The leak is still happening because even though there is not supply pressure, gravity is pulling the water out the break in the liner.

Jul 05, 2016 | Water Water Heaters

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Would a leaking pressure valve cause there to be no hot water? Both happened together.


On a hot water tank it could be your panel breaker flipped off. Push the breaker to off and they back on. It could be that one element was burned out a while ago and now your second element has burned out also. The most likely situation could be that you turned off a valve to the tank, the water leaked out of the tank and the elements then burned out trying to heat only air.

Mar 29, 2015 | Water Heaters

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Pressure releif valve leaking


Hot water pressure relief valves serve two functions. The first is to remove high-pressure water from the hot water tank. The second function is to act as a high temperature valve to remove water that exceeds a predetermined point for the valve. Both of these relief settings are preset at the valve factory. Many pressure relief valves will come with a metal tag that identifies these release points. If you're attempting to remove the hot water heater pressure relief valve, pay careful attention to ensure that you replace with the correct valve.

Your hot water heater has a pressure relief valve safety mechanism. When pressure inside the water tank exceeds certain limitations, the valve opens up to allow the pressure to be released. A faulty pressure relief valve will not release excess pressure, which could cause extensive damage to your home. You should test the hot water heater pressure relief valve once every six months to ensure proper operation. If the pressure relief valve fails the test, replace the valve with a new one immediately

Locate the pressure relief valve on your hot water heater. The pressure relief valve has a lever handle on top with a drain pipe attached to it. The pressure relief valve is most often on the side of the water tank toward the top. Newer models of hot water heaters have the pressure relief valve on top of the water tank.

  • Inspect the area around the pressure relief valve for signs of leaking water. If there is leaking water near the relief valve connection, replace the relief valve. If no leaking is evident, proceed with testing the pressure valve.

  • 3

    Examine the area below the pressure relief valve drain pipe. Most water heater closets either have a drain in the floor below the pipe or the pipe is inserted into another pipe to direct the water out of the home. If the end of your drain pipe is not in another pipe or there is no drain in the floor, place a bucket under the drain pipe to catch water when you test the pressure relief valve.

  • 4

    Pull the lever handle on the top of the pressure relief valve up with your fingers. A working lever will lift up without difficulty.You should begin to hear water going through the drain pipe. Slowly release the lever to shut off the pressure relief valve. The pressure relief valve is good. If you did not hear water running through the drain pipe, lower the lever on the pressure relief valve and replace the valve. If the lever is difficult to raise, do not force the lever. Replace the pressure relief valve.


  • Now with all that said if you have a closed loop water supply system and you have a pressure vessal/expantion tank it may have gone bad and is making the TP valve leak. you can call your water provider to see if you have closed loop system.

    Feb 04, 2011 | Whirlpool Water Heaters

    1 Answer

    It is leaking out of the top. not out of the hot or cold valves but out of a nut by the cold side.


    Your tank is rusted out and needs to be replaced.
    Link below is a troubleshoot for leaking water heater.
    http://waterheatertimer.org/Leaking-water-heater.html

    Protect yourself first:
    If your tank is rusted, there is danger of rupture.
    My friend welded his leaking tank, but he assumes the risk.
    Ruptured tank can cause massive damage and water runs until it is shut off.

    Hot water tank is under pressure because hot water expands and pushes against tank wall.
    Turn off water to tank.
    Turn off power supply:
    Electric: turn off circuit breaker.
    Gas: rotate knob to pilot so pilot stays lit but burner will not fire. To turn back on, rotate knob to ON.
    Open hot side bathtub valve and relieve pressure on tank.

    You can limp by with rusted tank by turning water heater on when hot water is needed.
    Shower uses 5-9 gallons hot water
    Bath uses 12-15 gallon hot water
    Ordinary gas heater makes 41 gallons hot water per hour
    Ordinary electric heater makes 20 gallons hot water per hour.

    I buy water heaters at Lowes, Home Depot, Ace.
    Look for scratch and dent models.
    Buy drip pan for water heater.
    Wrap electric heater totally with insulation except TP valve.
    Buy new flexible connectors for water lines.
    Offer 15% less than marked price on tank, because the store makes money on additional items.

    > Most people can install their own electric heater since you just connect water pipes and electric wire, and it's done. Read link below since there are tips that help you buy and install electric.
    > Generally people are nervous about installing gas water heater, so step-by-step instructions are shown on link below. Remember gas line is under less pressure than water line, so if you can install a water pipe, you can install gas line to water heater with crescent wrench, and soapy water to check for leaks.
    How to install gas water heater:
    http://waterheatertimer.org/How-to-install-gas-water-heater.html

    Add a comment for more free help.
    Also take advantage of fixya phone service.
    For a price, fixya expert speaks with you over phone while you work on water heater, or any do-it-yourself project.

    Jan 13, 2011 | Water Heaters

    1 Answer

    Just purchaced a 99 jamboree with an atwood G6a-8e water heater. while on a trip I lit the water heater, and after 30 minutes someone told me water was leaking from the side. I noticed the pressure relief...


    It's gas operation only, but has electronic ignition for propane. ( just to confirm, if you look at back of water heater, it would have a metal or black plastic cover and hydro cable going in side or top of it.)
    There are usually 3 things that may cause pressure relief to leak. 1) Faulty,corroded pressure relief valve, which usually needs to be replaced if it goes faulty. 2) water temperature is getting too hot, which could indicate a faulty thermostat. 3) If your hooked up to city water, the pressure may be too high, causing excess pressure build up in hot water tank, thus pressure relief opens. If your running off your on board pump, this is probably not the cause, as they are usually set at 40 psi.
    Ist, - try pulling lever on relief valve slightly open ( careful it's hot !!) to clean out any calcium that may be logged on seal thus causing leak. If that doesn't do it, and the hot water isn't running out steady and appear to be under extreme pressure while leaking, then I'd change the pressure relief valve. Remember when you do, shut off water to system, and relieve pressure by opening a tap, and pressure relief as well after that. New one shouldn't be too expensive, just make sure you get same thread, 1/2"NPT or 3/4"NPT. Use a little teflon tape, or pipe dope whatever you prefer when re-installing as well as clean threads a little before.
    If it really starts gushing out pressure relief when heating or heated, and water seems hotter than normal, it's more than likely a faulty thermostat. I'll wait for your reply on what condition your experiencing before I go in to how to change the thermostat.

    Nov 17, 2010 | RTO Atwood Water Heater - 6 Gal LP

    1 Answer

    Turned off the hot water to fix a leaking tap. now the tap has no hot or cold water and the hot water tank valve is leaking?


    It sounds like two problems.
    Problem 1) Clog inside faucet or clog inside pipes at faucet
    Remove supply tubes leading to faucet and see if problem is inside pipes or inside faucet.
    My bet is clog inside faucet.

    If you have galvanized pipe that meets copper pipe, this can be trouble spot.
    Article on clogged water pipes at Inspectapedia:
    http://www.inspectapedia.com/water/Water_Pipe_Clog_Repair_Guide.htm

    Article on clogged pipes:
    http://www.waterheaterrescue.com/pages/WHRpages/English/Troubleshooting/Tanklets/backflushing.html

    Problem 2) Water heater leak ... you say tank valve is leaking? Is that cold-water shut-off valve? Or tank drain valve? Or TP valve?

    If cold water shut-off is leaking, then replace shut off.

    If tank drain valve is leaking, then check if plastic valve is cracked. If drain valve is cracked, then replace with a brass valve from Home Depot. If plastic valve breaks off, then use hammer and screwdriver to gently chip out the broken plastic valve. New valve threads need teflon tape to seal pipe. If valve is just dripping, then put garden-hose cap over end of valve and screw down tight.

    If TP valve is leaking, then replace with same temperature and pressure rating.
    New TP valve threads need teflon tape to seal pipe.

    Problem 3) If pressure is low all over house:
    Buy pressure gauge at hardware store that screws onto hose connection.

    Test pressure on outdoor spigot.
    Open faucet and check if pressure drops. This says if problem is inside pipes that enter house.

    Test pressure on water heater drain valve.
    This says if pressure problem is before -or- after water heater.

    If problem is before the water heater, then shut-off valve located on cold water line is suspect.
    If problem is after water heater, it could be in hot water outflow pipe on top of water heater, or a nearby elbow.

    Remove hot water line leading from water heater and check pressure. This says if problem is where hot water leaves tank.
    Read articles above about clogs inside water lines.


    Nov 16, 2010 | Rheem Water Heater Pressure Relief Valve

    1 Answer

    We have a reliance 606 50 gallon electric water heater. recently we noticed it has an internal leak. I removed the top and removed some of the insulation. the pipe fittings are dry but when you put water...


    I wrote a page on leaking water heaters.
    With a checklist.
    It sounds like you've done quite a bit already.
    The element can leak around the gasket.
    The TP valve can leak where it screws into side of tank.
    Otherwise a leak on side of tank sounds like the tank is rusted through and needs to be replaced.
    http://waterheatertimer.org/Water-heater-leaking.html

    You should turn off electricity and water to the tank, and open tub valve on hot side to relieve pressure so the tank will not rupture.
    Then you can limp along with a failed water heater by turning the water and electricity on only when hot water is needed.
    This will buy you time until a new heater is installed.
    A typical electric water heater produces 21 gallons of hot water per hour.
    A shower uses 6-9 gallon of hot water, so heater only needs to be turned on 20-30 minutes for a shower, more if the incoming water is very cold.

    To economize with your next heater, you might read the following two pages:
    http://waterheatertimer.org/9-ways-to-save-with-water-heater.html
    http://waterheatertimer.org/Replace-anode-rod.html

    Nov 08, 2010 | RELIANCE ELECTRIC WATER HEATER

    1 Answer

    Water Heaer Problems


    Although rare the pipes may both me hotter near the heater and the cold water line will get colder the farther back you go from the heater. Now I would do yourself a favor and hire another plumber to do the work on your water heater because from what your telling me these guys don't know anything about water heaters and I suspect they may have bumped your TPR valve (although if you ask them I'm almost positive they'll deny it). Here's what happens. From not be being used all the time the TPR valve gets buildup in it from your water lines, and as soon as the lever is pushed the TPR valve will constantly leak water until it is replaced. I would try replacing that first. To replace it simply unscrews with a wrench, just be sure to turn your water heater off and drain it halfway before replacing. That is the least expensive option. Next I would try putting in an Amtrol Expansion tank. Your local home store can get you the right one. It expands when there is excess pressure in the line. A plumber would have to install this and if you already have one make sure it is working properly. These are the only two things that would make a TPR valve leak. So while the two are not linked, I still don't think it is a coincidence.

    Jun 26, 2010 | Rheem 50 GAL ELEC TALL Water Heater 6YR SC...

    1 Answer

    Hot water not very hot..also seems low in pressure


    pressure temp valve leaking
    tank leaking
    hot water line leaking
    shut off water to tank and leave sit for 4 hours turn on water tap and test temp if hot you have a leak

    Oct 17, 2009 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

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