Question about RELIANCE ELECTRIC WATER HEATER

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Water gets to hot even when turned down all the way thus opening pressure release valve

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I can get you started but might need more information.
Do you have tank-type electric or gas water heater?
Or indirect heater, or boiler, or tankless, or condensing, or under-counter?

If you have ordinary tank-type electric water heater, the thermostat is probably bad.
Replace thermostat(s)
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

If you have ordinary tank-type gas water heater, then thermostat can be bad, and thermostat is located on the gas control valve
http://waterheatertimer.org/images/Typical-gas-valve-300.jpg
http://waterheatertimer.org/How-to-install-gas-water-heater.html#clean

Add a comment for more help.

Upvote the help.
And take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Posted on May 25, 2011

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Posted on Jan 02, 2017

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1 Answer

How to change out copper piping from release valve


If the release valve referred to is the pressure release valve, then a water leak out the attached vent pipe is an indication that the valve is failing. To change the valve, the water must be allowed to cool (turn off AC power or gas) and the water level inside the tank must be lowered (drained) to below the level of the pressure relief valve. Once this is accomplished the vent pipe is unscrewed from the relief valve and the pressure relief valve is unscrewed from the water tank. A new pressure relief valve with a sealant on the threads, is then screwed and tightened into place with the outlet port facing downward. The vent pipe is attached to the new valve and the tank refilled with water. A hot water facet must be opened to allow air to exit while filling. Upon becoming full (water will begin to flow from facet), turn off the facet and restore AC power or gas, therefore allowing the water heater to heat up. When the first hot water is utilized there may be some air expelled from the facet.

Sep 13, 2015 | Water Water Heaters

1 Answer

Hi my vulcan gas hot water service isn't getting hot enough anymore? please help me?


check first if you have good water flow to and from heater. lift pressure release valve on inlet and allow few sec to flow, same with outlet hot water safety valve.

remove front cover from the heater, you should see your gas connection and thermostat knob.

check if gas is burning evenly and on whole surface, check for leaks on the heater and on the lines to and from the heater.

if you did not find any faults, no leaks, safety valves work correctly, check thermostats settings,

wind it down to minimal, then turn it to about 1/4 value (you did not specify model but this should do, widening arrow or numerical values ar self explanatory), lift hot water safety valve for few seconds, then open any hot water tap (faucet if you are an american...) and check if gas ignites and burns.

set thermostat to about 2/3 value and again, lift hot water safety valve for few seconds, then open any hot water tap. check if gas ignites and if water is sufficiently hot, if too hot - wind it down to say 1/2 way, if too cold, wind it till resistant and then back off a bit, DO NOT EVER LEAVE VALVE OR THERMOSTAT ON MAX!.

if none of these help - you need either, change the thermostat or heater itself.

if works - you solved the problem, close the tap, close the cover and use the system as you normally do.

i am always recommending use of insulation on the hot water system, it saves heaps of money over the life of the system.

hope this will help you - do not forget to vote... :-)

Apr 09, 2015 | Water Water Heaters

1 Answer

Hot water valve leaking how do I take part no.


You will need to turn off the water heater first. Shut off cold water inlet valve to tank. Open the drain at bottom with hose attached to suitable drainage area, hot water will damage plants and grass so if you want to use the water let unit cool off for a few hours or drain down past the valve level. You can open the release on the temp/pressure vale and it will help vent and allow you to know the level. Take a small pipe wrench or large channel lock pliers and remove the drain line pipe connected to the valve body. Open a faucet that is the longest run and wait. The valve can be found at most home centers and are basically all the same with the BTU and pressure rating on the label. Take with you to match length and ratings. Apply Teflon tape or pipe dope on threads to help seal the fitting and tighten up till unit is secure and the opening points down for overflow pipe installation, reseal and tighten. Close off drain and refill with faucet and valve release open, when water starts to run out of valve close and continue filling until all air is bled out. Then relight water heater or turn on power. Check for leaks and test valve for operation. The TP valve should be tested annually for safety.

Aug 26, 2014 | Water Heaters

1 Answer

I have an Atwood water heater G6A-7E, heater heats up but no hot water flow after 15 seconds...Flushed system with water and air, put water to it and the hot water flow stops after a few seconds....


First check that any by-pass valves are in proper position. Remember, cold water has to enter in bottom fitting at back of tank, and hot water comes out at top fitting. Thus any valves that may be there, need to be in open position, and any valve between those 2 lines will need to be closed. If all valves are in proper position and working as they should, I would suspect you have a faulty check valve between top (hot) line fitting and tank. One easy way to check that before replacing it, would be to shut incoming water source off, whether running off pump or hose attached outside. Then relieve all pressure in system by opening taps until all pressure is gone. Now, go outside and open pressure relief valve carefully ( in case it's hot ) and make sure pressure is relieved there as well. Now, carefully hold pressure relief valve open while you have someone turn water back on, and see if you get good flow from pressure relief valve. If you get good pressure coming out of there, that tells you your tank is getting full, and you have water coming in as needed, so problem has to be on hot side ( top fitting ) and/or onward from there, which would be check valve fitting at top next to check. Remove the check valve and If you don't have a new check valve to try it, just put a short galvanized 1/2" pipe nipple in there for now if needed and that should do it, just attach your fitting directly to nipple. Before you do this, make sure you have removed all aerators etc on taps that may be plugged and tested pressure that way as well just in case. I have seen all of them plug up at same time before. If you remove them and get good pressure, then problem solved.

Nov 06, 2011 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

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

    2 Answers

    Water is pouring steaming hot water from a copper pipe on the outside of my GSW Series 6 40 gallon water heater onto my basement floor. What is wrong?


    Sounds like the TP valve is releasing water.
    http://waterheatertimer.org/Water-heater-leaking.html

    To protect your property right now, turn off water heater:
    Gas: turn gas valve to pilot so pilot light stays lit but burner will not turn on.
    Electric: flip circuit breaker off

    Next turn off water valve located on cold water line above water heater.
    Last, open tub faucet to relieve pressure on tank.
    Once pressure is off after a few moments, close tub valve.

    The question is why is the TP valve releasing water.

    1) Stuck TP valve: raise lever on TP valve and let back down slowly

    2) bad TP valve: replace TP using same temp-pressure rating available from hardware store. Wrap teflon tape around threads and screw new TP valve clockwise until very tight. Make sure water is cool before removing valve from water heater. If you take out valve when water heater is hot, it will spew scalding water all over you. This is serious. Let the water cool down for several hours.

    3) Runaway heating caused by bad thermostat
    Gas: buy replacement valve at Lowes or plumbing store and replace according to instructions.
    Electric: several causes. Test parts to determine which needs replacement.
    http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html


    More support:

    a) Fixya offers phone support where you speak with a fixya expert on telephone for a fee.
    You can use this service if you hit a trouble spot when repairing your tank.

    b) You can also call a plumber who will know exactly what to do.

    c) You can post questions at a professional plumbing forum:
    http://www.thetankatwaterheaterrescue.com/forums/forum3/

    Dec 20, 2010 | Water Heaters

    1 Answer

    We have a brand new rheem 40 gal elec water heater, after installation we have water leaking from the base of the relief valve, pooling up in the plastic fitting and making it way over the side all over...


    Water heater should be set in a drip pan.
    Otherwise, put 1 gallon bucket under TP release pipe to catch water.
    http://waterheatertimer.org/Water-at-bottom-of-water-heater.html#drip-pan

    When you say relief valve, I assum you are talking about brass valve located on top of tank or near top of tank. This is TP valve and a pipe connects to this valve and runs down to within 6" of bottom of tank. TP valve has a small lever on it.
    If you are talking about tank drain valve located at bottom of tank, then add a comment.
    Following information is for TP valve.

    Dripping TP valve can be caused by 3 different thing:

    1) Obstruction inside TP valve. Open TP valve for a moment to flush away particles and slowly lower lever back down. See if water stops dripping, if not, then replace TP valve

    2) Defective TP valve: replace TP valve. Turn off electricity to water heater. Let heater cool for several hours so you do not get scalded. Close shut off valve located above tank on cold side. Open tub spout to relieve pressure, open tank drain or open TP valve and empty water below TP valve level. If TP is located on top of tank, not much water has to be drained. Tank is under press when hot, so be careful. Put teflon tape on new valve and install with big pipe wrench by turning clockwise until TP valve is very tight.

    3) Overheating tank. TP valve is temperature-pressure valve. If tank water is over 150 degrees, the TP valve starts drizzling hot water to relieve tank pressure.
    Lower tank pressure two different ways:
    a) turn down thermostat
    http://waterheatertimer.org/How-to-adjust-water-heater-temperature.html
    b) install expansion tank on incoming cold water line
    http://waterheatertimer.org/Water-at-bottom-of-water-heater.html#expansion-tank

    Dec 19, 2010 | Rheem Water Heater Pressure Relief Valve

    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

    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.

    Oct 03, 2010 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

    1 Answer

    Tp valve opening and dumping water


    Certain water heaters can only handle so much pressure from the main line. There is a pressure controller between your water meter and you house, it's called a pressure regulator. You need to call a plumber to check and see if it needs to be adjusted or even replaced.

    Dec 22, 2008 | Bosch & Tankless LP Hot Water Heater

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