Question about Water Water Heaters

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We lost power for two days and now the power is back on. We still have no hot water and the water heater sounds like its continually running water.

Could you give me some ideas of what to do next?

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Bets say you have an electric water heater. shut off the electricity to the unit (typically in the breaker box), and then the water inlet valve. Locate the TPV valve, either on top of or near the top on the side, of the unit. Generally they have a small lever attached.

Depending on where in the home the heater is located, if indoors it should have thawed by now, outdoors it may still be frozen, remove the panels covering the elements. each of the elements will have a thermostat, each may be equipped with an independant reset button. press these. if one or the other seems to reset (a noticeable 'click), replace the covers.

ONLY if you were successful in resetting the thermostats, restore power, and wait 30 minutes. SLOWLY open the water supply, and watch for water leakage, listen for water flow(make sure all faucets are OFF first) Freezing can rupture the tank, ice can hold the TPV open, so there is a good chance your water heater is trash. Exercise caution.

In freezing conditions with a power outage, ALWAYS open the hot water someplace in the home to allow water flow(not full stream) to prevent freezing.

Posted on Dec 20, 2014

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Posted on Jan 02, 2017

  • 68 Answers

SOURCE: The power vent blower on my hot water tank will not shut off.

If the blower continues after the end of the burn cycle it is the cool the heater down. Over running would indicate a defective end cycle temp relay.

Good Luck, Phil

Posted on Dec 11, 2008

  • 2692 Answers

SOURCE: Eractic Power Vent Gas Water Heater

Th epproblem you are most likely have is from a safety called a flag switch usually located either in the blower or right past it. When you unplug and replug you reset the switch. Sequence of events.  1 fan comes on. 2 switch is made from the airflow of the fan.  3 ignitor come on 4. main gas valve opens and ignitor starts flame. 
You are being stopped at step 2 when the fan does not move with the air. This shuts off and out the water heater from calling again.  Find the fan switch and make sure it moves easily. They get dirty and also dry from lack of lube. Good luck.  

Posted on Mar 16, 2009

  • 14 Answers

SOURCE: my bosch gas water heater does not give out

This sometimes happens in undersized gas delivery pipes. Does the unit have at least a 3/4" supply pipe?

Posted on Jul 08, 2009

  • 3 Answers

SOURCE: Rheem water heater Model 81v40DT

It sounds like the pressure/temperature relief valve is stuck open slightly, and draining out the PVC pipe. This is common in poor water locations.

You can try lifting the release on the top and letting it pop shut again, but chances are good that by now the seat has been destroyed by the water passing over it. Replacements are available at any home store, just remember to drain the water out of the heater so you don't flood the garage. MAKE SURE YOU TURN OFF THE POWER FIRST OR YOU WILL BE REPLACING THE ELEMENTS ALSO! You will need to wrap the threads with teflon tape before installing the new valve.

Posted on Mar 30, 2010

  • 102 Answers

SOURCE: no hot water

If you checked the reset, then the next thing to check would be the breaker in your breaker box. If that doesnt work start checking the elements. The reset, the thermostat and the elements are pretty much all that can go wrong with an electric water heater, short of a leaky tank or faulty t&p valve. Hope this helps.

Posted on May 11, 2010

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1 Answer

I have a new Bradford white 40 gallon gas hot water heater. There are no single handle faucets. The hot water fluctuates between hot and cold. When I close both inlet and outlet shut off for the hot water...


Sounds like water leak.
For example, broken pipe... or water running out of TP valve.
That would explain variable hot-and-cold water at tap.
Turn off all taps, and observe if water meter is registering water usage.

Jun 15, 2014 | Water Heaters

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The water heater (Reliance Elec 501) does not turn on, This happened on the same day that our whole apartment lost power due to tripped main switch.n I reset main but water heater does not respond,...


Two-element water heater is 240Volts.
No hot water means: ECO reset button tripped, upper element bad, upper thermostat bad, or 240Volts is not reaching water heater.
Circuit breaker can be delivering power on one leg of the 240V circuit, so water heater appears to have electricity but is only receiving 120V.
Test for 240volts across top two screws on upper thermostat.
Look for loose wires and burned connections.
Push in reset button real hard.
Replace both upper and lower thermostats.
Remove wires and test upper element for continuity.

Open following links for do-it-yourself troubleshoot walk-thru:
http://waterheatertimer.org/B220C.html
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html
http://waterheatertimer.org/Test-electricity-to-water-heater.html

Aug 21, 2011 | RELIANCE ELECTRIC WATER HEATER

1 Answer

No hot water power is on and is present at thermonstat. heating elements show continuity


Sounds like water heater is getting 120V but not 240V

You say there is no hot water inside the tank?
You have two elements, so tank is 240V.
Both elements test for continuity.

These three symptoms together imply that water is getting 120Volts instead of 240Volts.
Water heater appears to have electricity, but is receiving power from only one leg of the 240Volt circuit.

Open following link for troubleshoot of electricity to water heater.
http://waterheatertimer.org/Test-electricity-to-water-heater.html

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.

May 18, 2011 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Reset button seems to be stuck down and run out of hot water to soon


If I understand correctly, you have an electric water heater.
The water heater is dual element and has 2 access panels on water heater.
You run out of hot water quickly.
And the reset is stuck down.

First of all, if the reset button is tripped, the water heater will produce NO hot water.
The reset, or ECO (electricity cut off), is designed to cut off all power to water heater.
So if you have some hot water, then ECO reset is fine.
The thermostat may be bad, but the ECO is fine

Next in line:
If your upper element is burned out, then the water heater will not make any hot water.
So if you have some hot water, that tells us the upper element is working.

The three remaining suspects are upper thermostat, lower thermostat, lower element

Let's test the lower element.
Turn off the power.
Remove both wires from lower element.
Test across both screws with a continuity tester.

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The continuity tester has a battery and when light comes on, it says the circuit is complete.
Test1) Test across both screws on lower element with continuity tester.
If the light comes on then the element is good so far, but element has to pass one more test.
Test2) Test each screw on element to any bare metal part of water heater.
If the light does NOT come on with the second test, then element is good.
Element has to pass both tests. Light ON first test. Light OFF second test. Then element is probably good. This is not a fail-proof test but it is a good indicator.

I'm betting the lower element is burned out and you need to replace lower element. And you may need to vacuum out the sediment.
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html

Now if lower element is good, then the easiest thing is to do is replace both thermostats. After replacing both thermostats, the water heater will probably work. If there is still a problem, then the lower element was not as good as the test showed, and it should be replaced also.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

If you are still having a problem, answer back and we'll give you more details.

Oct 23, 2010 | Reliance & Electric Water Heaters

1 Answer

Much smaller amount of hot water from electric water heater


sounds like an element is burned out. if your water heater lost its water, probably from siphoning, and the power was on, then it most likely burned out the element.

you will need to replace. replace both the upper and lower elements at the same time, don't just replace the one that's burned out.

turn off the power to the water heater, be sure to check with a volt meter to make sure its off. drain the water heater.

remove the wires from the elements, not the thermostat, and remove the element. on the newer water heaters they screw in. take that with you to the store so you can match it. get 2 of them.

be sure to use the new rubber washers that come with the elements and make sure the threads on the heater are clean. be careful not to drop or bang the elements against the heater when installing, they can be fragile.

do not over tighten! snug is good enough. when you get both elements installed, start filling the heater with water. if you have any leaks, tighten the elements a little more. now hook up the wires you removed from the elements. doesn't matter what position or screw they hook to.

start bleeding the air from the water heater, turn on the hot water on a faucet in the house, when it quits spurting air and runs water smoothly turn it off, and turn the power back on to the heater. use your amp meter to make sure. initially there will only be power at the top element 220v to 240v

make sure the thermostats are set evenly, (125* setting) if the settings are mismatched (one at 125 and one at 135) the heater will not function properly.

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Residential electric hot water heater throwing br


If you reset the water heater the first time you were without, Then odds are it is the water heater. probably an element went back. If the power off check for continuity.

Please rate this response and Good Luck, Phil

Dec 28, 2008 | RELIANCE ELECTRIC WATER HEATER

1 Answer

The power vent blower on my hot water tank will not shut off.


If the blower continues after the end of the burn cycle it is the cool the heater down. Over running would indicate a defective end cycle temp relay.

Good Luck, Phil

Nov 14, 2008 | Water Heaters

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