Question about Reliance & 40 Gal Electric Mobile Home Water Heater

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Reliance 40 gal hot water heater. Model 54020RS960 Water was warm not hot. Found red reset bottom tripped on top heat element. Replaced top heating element. Water was extremely hot and eventually tripped circuit breaker in fuse box. I think it might be the temperature controller bad. If it is, is that a big deal to replace? Thanks, Bill

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Hello Bill The temp stat is a square box clipped in under the elements .Can be replaced in 5 minutes.Need a large flat screwdriver.

Posted on Oct 15, 2010

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Posted on Jan 02, 2017

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I TURNED ON POWER TO MY NEW ELECTRIC WATER 40gal MODEL # GEM402 AFTER FILLING WITH WATER. WATER WOULD NOT HEAT UP. CHECKED THREMOSTATS BOTH WERE PRSET AT 120 CHECKED POWER,BOTH HOT WIRES HAVE 124 VOLTS TO...


The controls of electric water heaters are designed so that at no time are both the top and bottom heating elements energized. Nearly all electric water heaters of this capacity in the US & Canada (other places, too) operate on 240 Volts.

When the water in the tank is below the set point of the thermostat (in your case - 120 degrees), the top heating element is expected to be on - (unless there is an issue with the top thermostat or limit switch). The top most control is the "high temperature limit". It is identified by the reset button on it. Make sure this isn't tripped by depressing the button. If it clicks - it was tripped and should start to make hot water at this point. If not tripped, you should check for the presence of 240 Volts between the heating element terminal screws. Do not measure from ground to a terminal screw and believe 120 Volts is "good". To make heat, you need 240 Volts - not 120 Volts measured across the terminals - not to ground. The amount of heat created running at 120 Volts is only 1/4 of what it will do at the correct voltage.

If you don't measure 240 Volts on the top element, check the bottom element in the same manner described for the top element.

If unable to measure 240 volts on any element, either there is a problem with the power source (blown fuse or circuit breaker), high temp limit switch, or thermostat(s).

If 240 Volts is present on either heating element, and water is not warm / hot in 30 minutes or so, a defective heating element is suspect. You can change controls without draining a tank, but replacing elements will require draining the tank first. Do not power the water heater without first filling it.

You can read a very detailed "how to" article about checking water heaters here.

I hope this helps - and good luck!

Nov 04, 2010 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

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1992 Reliance electric water heater model 501 has two 4500 watt heating elements , there is no hot water.


Check the breaker and top thermostat and make sure they are not tripped. Move onto replacing elements if above is not the problem.
Turn water and power off to heater and attach a water hose to bottom of heater to drain down tank. May have to open hot side on a facuet to get it to drain.
Once drained remove elements with 1 1/2" found at local hardware stores. once elements removed and new ones in place. Turn water on and get the air out of the system. Once water is flowing from the hot side from all of facuet's in house.
Once all air is out now yaou are resady to turn power onto heater.

Oct 09, 2010 | RELIANCE ELECTRIC WATER HEATER

1 Answer

Electric 40 gal red reset button keeps tripping


You need to check your heating elements. also check for any loose wires as you may have a fire hazard as well.

Sep 11, 2010 | RELIANCE ELECTRIC WATER HEATER

1 Answer

My water heater--Reliance 501--model 5 52 ZORT6 FW95--stopped heating the water. What is the most common problem causing this?


Thermostat may be tripped out or breaker tripped that would be the first few thing's to check. If they check out maybe the element's are in need of replacement.
The clue with element's is one will go and the other will follow. The top element goes you would get luke warm water till the bottom goes out. The bottom goes out first you will get a blast of very hot water till the top element goes out.

Check out this link for further information on water heater trouble shooting.

http://www.water-heater-repair-guide.com/electricwaterheatertroubleshooting.html

Jun 21, 2010 | Reliance & Electric Water Heaters

1 Answer

No hot water


You may have 2 elements. Make sure both circuit breakers are on.If the heater is old it may be plugged up with sediment. Flush out via valve on bottom. If no water comes out or it is very rusty keep running till clear. If it does not help probably time for a new heater.

Jun 07, 2010 | Reliance & 40 Gal Mobile Home Water Heater...

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Water Too Hot


needs new thermostat(s) If the whole tank is heating( next time it trips, before using any hot water check the lower tank thru the lower element access(breaker off) If the lower tank is hot-you need a new lower thermostat. if just the upper part of the tank is heating -you need an upper thermostat.

Jan 18, 2010 | RELIANCE ELECTRIC WATER HEATER

1 Answer

50 gal. Reliance electric hot water w/bottom element problems


Willard when you say it throws the reset button,do you mean the breaker on your fuse box of your home?
If you mean that then yes it could be a bad element.The bottom element takes all the abuse on a electric hot water heater. They can short out,and need to be replaced.

Dec 01, 2009 | Reliance & 50gal Electric Water Heater

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I installed a now 40 gal. electric water heater, made by Reliance, problem: I have power going to the top thermostat and element, but there is no power going to the bottom element.please help, thanks Mike...


How they work. First you need to know that cold water goes into the tank near the bottom (because of the "dip tube" inside the tank) and hot water is taken out at the top. Also hot water naturally rises.
so... when the tank is full of cold water the top element will come on and heat up the top 1/3 of the water then the bottom element will come on and finish heating the rest of the tank.

Apr 19, 2009 | Water Heaters

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