Question about RELIANCE ELECTRIC WATER HEATER

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I have a reliance electric hotwater tank and the lower left side of the thermostat is totally melted, what is the cause of this?

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An internal short in the wiring of the thermostat. It is not as common an occurrence as it use to be, but it still happens.
I would check your breaker panel and make sure the water heater's breakers are the correct size for your unit.

Posted on Sep 15, 2010

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I've had to reset it 2-3 in a week and tried to lower the temp but it still kicks out the reset button.


Good news is tank-type electric water heater if fully repairable by homeowner.
And you can reset water heater as needed until repair is made without damage.

-Tank is tripping reset so you can eliminate circuit breaker and electricity as suspects.
-Tank is not leaking, so TP valve is ok and tank not rusted out.
-Water pressure is fine so outlet and inlet pipes are not clogged with sediment.
-Tank is not short of hot water so you can eliminate leaking faucet as the problem.
-Tank is not short of hot water so lower element is not burned out due to sediment-build-up.

That leaves 6 suspects:
1) Loose wire at thermostat causing arc and overheating: Inspect thermostats and elements for signs of high heat and burning. Tighten screws very tight against copper wire.

2) Upper or lower thermostat is bad: replace both thermostats for $28. Buy generic thermostats at hardware or home center.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

3) Element is shorted to ground in center of element: test elements
http://waterheatertimer.org/How-to-test-water-heater-element.html

4) Stacking: read about stacking.
http://waterheatertimer.org/Stacking.html

5) Factory-installed cover and insulation have been removed from tank. Check that insulation and cover are placed back over thermostat each time so thermostat not exposed to cooler air that will cause overheating.

6) Combination of more than 1 suspect: do full troubleshoot:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

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

Feb 13, 2011 | RELIANCE ELECTRIC WATER HEATER

1 Answer

I have a Reliance 501 electric water heater. There are two panels. In the top panel is a red "reset" button. On two occasions this button has popped and turned off the unit. I have pushed the...


ECO reset button trips when thermostat senses high heat event over 150 degrees F, or when upper or lower thermostat is defective. There are other causes: if tank access covers and insulation are missing, and when element is shorted to ground in center of element so that element continues heating through one leg of 240V circuit after thermostat turns off.

Ordinary tank-type electric water heater is fully repairable by homeowner using generic parts from hardware store or home center.

1) Replace upper and lower thermostat for about $28, and if problem persists, then do troubleshoot shown in step 2 below.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

2) Take 30 minutes and troubleshoot before replacing any parts.
Troubleshoot requires cheap multimeter from home center.
Install battery in multimeter.
When testing voltage, rotate multimeter dial to 240 or 250 or 277 VAC.
When testing continuity or elements, rotate multimeter dial to ohms (upside down horseshoe symbol is ohms)
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

Jan 13, 2011 | RELIANCE ELECTRIC WATER HEATER

2 Answers

Water was much hotter this morning, actually steaming when faucet turned to max. I checked thermostat & reset button, seemed to be normal. I shut off power and pushed reset button, waiting for it to...


I would try it again and if water temp is still to high then I would adjust thermostat down to say 120 degrees and see what that does.If problem continues I would replace thermostat. Thank you

Dec 20, 2010 | Reliance & 50gal Electric Water Heater

1 Answer

The reset button has popped more then once.


You have electric water heater.
Electric water heaters are fully repairable by homeowner.

Reliance is AO Smith company
http://www.aosmith.com/OperatingUnits/Detail.aspx?id=138&ekmensel=c580fa7b_12_0_138_3
http://www.reliancewaterheaters.com/prod/elec.html

Age of Reliance water heater is shown on serial number located on side of tank:
first digit is letter. Next two digits are numbers: for example C06 means 2006.
Serial number also shows model number & wattage of elements in case you need new element from hardware store.

ECO reset button trips when upper thermostat senses temperatures higher than 150 to 180 degrees.
When ECO energy cut off trips, it turns off power at the reset button, so the tank does not continue overheating.
Tripping reset button says tank is receiving electricity, so we can eliminate that suspect.

There are 4 reasons why ECO will trip.
1) Bad upper or lower thermostat: solution replace both thermostats for about 25$. Steps shown in link below.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
2) Loose wire or shorted wire at or near upper thermostat: Open covers on water heater and inspect parts for signs of high heat and burning.
3) Bad element shorted to ground in center of element: Solution test elements and replace defective element.
http://waterheatertimer.org/How-to-test-water-heater-element.html
http://waterheatertimer.org/How-to-replace-water-heater-element.html
4) Factory-installed insulation and cover has been removed from tank: thermostat exposed to cooler temperatures, and misreads tank temperature, and then elements keep heating water.

If you want to test all the parts before replacing anything:
http://waterheatertimer.org/How-to-troubleshoot-electric-water-heater.html


Thermostats are generic, and each functions same way and each can replace the other.
Same is true for both upper and lower thermostats
geno_3245_184.jpg

Dec 14, 2010 | RELIANCE ELECTRIC WATER HEATER

1 Answer

What to do if water doesn't get hot even though I have increased the thermostat settings... the heater isn't even4 months old and it has done this from day one


You have electric water heater.
Electric water heaters are fully repairable by homeowner.

Reliance is AO Smith company
http://www.aosmith.com/OperatingUnits/Detail.aspx?id=138&ekmensel=c580fa7b_12_0_138_3
http://www.reliancewaterheaters.com/prod/elec.html

Age of Reliance water heater is shown on serial number located on side of tank: first digit is letter. Next two digits are numbers: for example C06 means 2006.
Serial number also shows model number & wattage of elements in case you need new element from hardware store.

A) If your water heater receives very cold incoming water, it may not heat fast enough to keep tank warm.
Add a tempering tank.
http://waterheatertimer.org/Tempering-tank.html
Add insulation over entire water heater except TP valve. Insulate pipes completely.
Read more information:
http://waterheatertimer.org/9-ways-to-save-with-water-heater.html

B) If cold outside temperatures are not to blame, your water heater may have a bad thermostat or element.
Narrow down the suspects:

Water heater is 240Volts since you have more than 1 thermostat.
Water heater has some hot water.
This tells us upper element is working.
And that water heater electricity is working.
And that reset button is not tripped.
And that heater is not experiencing run-away overheating event.

That gives us 3 solid suspects.
1) lower element is burned out. Test lower element using inexpensive multi-meter from Home Depot.
http://waterheatertimer.org/How-to-test-water-heater-element.html
Replace element with same wattage shown on label, and clean out sediment:
This will restore water heater to full 99% efficiency.
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html
http://waterheatertimer.org/Clean-sediment-out-of-water-heater.html

2) Upper or lower thermostat is bad. Replace both thermostats for about $25.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
If you want to test thermostats and all parts before replacing anything:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

3) Burned or shorted wire. Turn off power. Open covers on side of tank. Remove insulation. Inspect parts for signs of high heat and burning. Especially lower element. Tighten any loose wires. Replace part that shows signs of burning.
Put insulation and cover back over thermostats so cooler outside temperature doesn't cause thermostat to misread tank temperature.

Dec 13, 2010 | Reliance WATER HEATER CO #9-40-DKRT 40GAL...

2 Answers

Hot water runs out in 5 minutes it use to last 20minutes


Electric water heater can be repaired by homeowner.

Water heater has some hot water.
We know 3 things for sure:
- electricity is ok
- upper element is ok
- tank does not have overheating problem

Here are the suspects:
- Burned or loose wire
- Upper thermostat not working
- Lower thermostat not working
- Lower element not working

What to do:
1) Turn off power, open water heater covers and look for signs of burned or loose wire, especially on lower element. Burned wire on lower element says lower element is burned out.

2) Test lower element.
Lower elements burn out when sediment builds up inside tank.
http://waterheatertimer.org/How-to-test-water-heater-element.html
http://waterheatertimer.org/How-to-replace-water-heater-element.html

3) If wires are ok. And you do not want to test parts, then replace upper and lower thermostat for 25$. If problem persists, replace lower element.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

4) If you want to test thermostats and elements before replacing anything:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

5) When finished, be sure to put insulation and covers back on tank so thermostats don't receive cool air and misread tank temperature. This will prevent overheating of tank that causes red reset button to trip.

geno_3245_101.jpg

Nov 23, 2010 | RELIANCE ELECTRIC WATER HEATER

1 Answer

I have a Reliance 501 water heater, when I take a shower now I only get about 5 min. of hot water is there something on the heater I have to reset? Thnx Mike


Electric water heater is fully repairable by homeowner.
Following information will tell you how.

1) Background on your heater:
Reliance is AO Smith company.
http://www.aosmith.com/OperatingUnits/Detail.aspx?id=138&ekmensel=c580fa7b_12_0_138_3

Age of water heater is shown in serial number. First character is letter. Second 2 characters are numbers, which are year of manufacture. For example 05 is year 2005.

The 501 manual is not shown on Reliance website:
http://www.reliancewaterheaters.com/prod/elec.html

2) Two things known for sure:
- electricity is OK
- upper element is working because there is some hot water.

3) Three things can cause problem you describe:
- Loose wire located from upper thermostat to lower element and thermostat.
- Upper or lower thermostat is bad
- Lower element is burned out

4) How to troubleshoot and repair
- Turn off power, open covers and look for loose and burned wiring, especially on lower element.
- When finished, put back insulation and covers so thermostat not exposed to cooler temperatures.
- Burned wire on lower element is evidence that lower element is burned out.

- If you do not want to follow testing steps below, next step is to replace both upper and lower thermostat for about 25$ and see if problem persists.
- If problem persists, replace lower element.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

5) Test lower element, before replacing anything
http://waterheatertimer.org/How-to-test-water-heater-element.html

6) Troubleshoot electric water heater
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

7) How to replace lower element and clean sediment out of tank:
http://waterheatertimer.org/How-to-clean-sediment-out-of-electric-water-heater.html

Nov 17, 2010 | Reliance Water Heater #6-50-DJRT 50GAL...

1 Answer

Changed shorted out bottom electric element and lower thermostat still no voltage to lower upper element reads 417 volts can upper thermostat effect lower thermastat?


Open following link to troubleshoot cause of problem:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

Oct 06, 2010 | RELIANCE ELECTRIC WATER HEATER

1 Answer

I have a reliance 606 electric water heater. This is my problem. The water gets unbearably hot then I have to reset the reset button on the water heater. I am thinking that I need to replace the heating...


you need to replace the thermostats. the elements are working, as your water is getting hot.

I would replace both upper and lower thermostats. be sure to set the temps the same for both.

the thermostats sit against the tank and read the tank temperature. if one is malfunctioning, they will over heat the water, causing you to get severe hot water.

also as a precaution, I would replace the temperature and pressure relief valve. if your water is getting that hot, and this has not "popped" then it is time to replace it.

Sep 06, 2010 | RELIANCE ELECTRIC WATER HEATER

1 Answer

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

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