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I HAVE A 30 GALLON DUAL ELEMENT WATER HEATER I HAVE 120 VOLTS COMING IN BUT AM ONLY GETTING 60 VOLTS TO BOTTOM THERMOSTAT

THE WATER WAS SHUT DOWN ON OUR STREET FOR WATER LINE REPAIR WHEN I GOT HOME AND TURNED THE HAT WATER ALL I GOT WAS AIR AND THE TOP ELEMENT HAD TO BE REPLACED I GET HOT WATER BUT NOT ENOUGHT

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  • Water Heaters Master
  • 5,245 Answers

Jan 2013
Reset circuit breaker.

1) Dual element tanks are 240Volts.
Copy following link for troubleshoot walk-thru
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html#electricity
http://waterheatertimer.org/How-it-works.html

2) Buy cheap multi-meter at hardware, and test for 240Volt across top two screws on upper thermostat.

3) Add a comment for more assistance

Posted on Jan 23, 2013

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6 Suggested Answers

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Posted on Jan 02, 2017

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  • 659 Answers

SOURCE: No hot water, Rheem Model RR612T, Electric Hot Water Heater, 60 g

If you don't have current, 0v from terminal to terminal, then you don't have voltage to the elements. Replace the thermostat but check that you have 220v to the thermostat. It is possible that your breakers to the unit are either bad or tripped.

Posted on Apr 07, 2009

  • 351 Answers

SOURCE: My water heater , Reliance electric 30 gal is

Hi .. I would suspect the thermostats. If the bottom Tstat is not working then you would have just warm water. For water too hot, check the tstat settings, should be about mid scale. Check the mounting of the tstats, the back of the tstat must be in full contact with the metal tank surface. If the tstats are loose then they are not sensing the real water temperature in the tank and will overheat.

Posted on May 03, 2010

  • 8 Answers

SOURCE: Top heating element was broke. Replaced got hot

look for a badly connected power line ont he bottom element, or any connection upstream of the power terminals. voltage readings usually drop to that range when you only have one side of the 220v circuit connected.

Posted on Jun 22, 2010

SOURCE: Reliance 606 electric 40 gallon hot water heater

ECO reset button trips for several reasons.

1) Easiest thing without testing, is replace both thermostats.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

2) If problem persists, then test elements.
http://waterheatertimer.org/How-to-test-water-heater-element.html

3) If problem continues, 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 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 Mar 08, 2011

blackmar
  • 235 Answers

SOURCE: I just installed a marathon

The top element should be heating if there is 240 volts across the element terminals. I take it that the top element is the booster element. The thermostat for the top element is normally a 2 pole thermostat which switches the neutral to the bottom thermostat once it reaches temperature. Once this occurs then the bottom element will start to heat. The top element will only come on when you use all the hot water. Is this supply on the off-peak rate? When testing always check the voltage across the element terminals.

Posted on Mar 21, 2011

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2 Answers

Water only stays hot for about 5 min or


Gas or electric?
Electric water heater ... then test for crossover, check for water leak, replace thermostats, test elements
Gas water heater ... test for crossover, check for water leak
http://waterheatertimer.org/Crossover.html

http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html


http://waterheatertimer.org/How-to-test-water-heater-element.html

water leak: turn off all taps and put ear against pipe and listen for water leak... check if water meter advances when all water taps are off.

Gene

Oct 09, 2014 | Water Heaters

2 Answers

I have a problem with a state 30 gallon hot water heater,the tank states 240 v but there was only 120 running it ,it has one element ,everything was working until the outside water well pump quit since the...


Thermostat is rated 120-208-240-277 volts.
Element will work with any voltage too, no matter rating on label. It will burn at different temperatures at different voltaGES.
Any voltage should run water heater.
Copy following links:
http://waterheatertimer.org/Figure-Volts-Amps-Watts-for-water-heater.html

Push in reset button.
Make sure tank was full of water before turning power ON. Or element will instantly burn out.
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html#new

Are you testing voltage across top two screws on element.
http://waterheatertimer.org/images/Upper-thermostat-w-wire-a-2.jpg
Or are you testing each leg to ground?
http://waterheatertimer.org/images/Inside-Main-Breaker-Box-12.jpg

Gene
h

Oct 31, 2013 | Water Heaters

1 Answer

BRADFORD WHITE 40 GALLON ELECTRIC WATER HEATER MODEL M240S6DS-1NCWW.. PROBLEM : I WAS ONLY GETTING A FEW GALLONS OF HOT WATER FROM HEATER. FIGURED ONLY TOP ELEMENT WAS HEATING SO BOUGHT TUNE UP KIT AT


Doesn't sound like its the dip tube, its a element problem, I would contact bw directly to see if heater is stil in warranty and they will send you new parts free.

Dec 18, 2012 | Bradford White M240s6ds-1ncww 40 Gallon...

1 Answer

Newly installed Hott Rod in 6 gal RV water heater only heats to lukewarm. Has been on for 12 hours. Outside temperature is 60 degrees


Hott rod is 120Volt AC.
Check voltage supply for undervoltage, or reversed polarity, or tripped breaker.
Check that electric thermostat is set to 120 degrees.
Rotate thermostat temperature adjustment back and forth and see if you can hear water heater working.
Thermostats can be bad, or stick.
Check the ECO red reset button is not tripped out.
If tank was not full of water before power was applied, the element will instantly burn out.
Use continuity tester across bare element screws to see if element is good. Or use multimeter and test across bare element screws shows 29 ohm for 6 gallon, 18 ohms for 10 gallon.
More resources at Hott Rod, for troubleshoot and contact.
http://www.hottrod.net/hott_rod_troubleshooting.asp

Oct 31, 2012 | Camco Hott Rod RV/Camper 6 Gallon Water...

1 Answer

Water heating not heating water


The Emmerson W152 is ordinary 1-year warranty 120Volt electric storage water heater, except with bronze tank. The bronze tank will not rust, and therefore tank does not have anode rod, and tank has 5 year warranty.
http://waterheatertimer.org/pdf/Emmerson-point-of-use-water-heater.pdf
Actions to take:
1) Check circuit breaker.
2) Emmerson plugs into 120V outlet. See if outlet works for other 120Volt light or can opener.
3) Turn off power and do following:
4) Open cover on water heater, and press in reset button.
If reset will not reset, then replace thermostat with ordinary generic thermostat from hardware store.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html
5) If reset button is not tripped, test element.
6) Emmerson has 1500 watt element, and correct ohm reading at 120 volts should be around 9.6ohms
http://waterheatertimer.org/How-to-test-water-heater-element.html
7) This element is 7" long, and is also generic, and should be available at hardware, or plumbing supply, or Google-search 'Emerson appliance water heater element.'

Jul 29, 2012 | Emerson InSinkErator W-152 Point-Of-Use...

1 Answer

I just installed a marathon 50 gallon 4500 watt, hot water heater. I do not have hot water. The wiring to the upper element and thermostat all test at 240 volts. The lower element and thermostat show no...


The top element should be heating if there is 240 volts across the element terminals. I take it that the top element is the booster element. The thermostat for the top element is normally a 2 pole thermostat which switches the neutral to the bottom thermostat once it reaches temperature. Once this occurs then the bottom element will start to heat. The top element will only come on when you use all the hot water. Is this supply on the off-peak rate? When testing always check the voltage across the element terminals.

Mar 20, 2011 | Rheem Water Heaters

2 Answers

POWER PROB: I have an 85 Gal. Marathon water heater and I'm having some power issues. I have 240 Volts coming into the water heater and on the "upper" element but I only have 120 Volts on the...


It sounds like upper or lower thermostat.
Thermostats turn off one leg (or one wire) in the 240Volt circuit, so each elements will test for 120V even when thermostat is off.
When thermostat turns ON, it closes circuit by adding the second leg to 240V circuit, and element turns ON.
http://waterheatertimer.org/How-to-wire-EH40-hot-water-heater-timer.html#120-240
http://waterheatertimer.org/How-water-heater-thermostat-works.html

Take 30 minutes and troubleshoot before replacing parts:
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

Jan 11, 2011 | Rheem Water Heaters

2 Answers

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...

1 Answer

Only getting 120 volts to the bottom heating element off of the t-stat


replace top thermostat , one line feeds direct the other through t-stat , but make sure you have a 220 feed coming to w/h

Jan 06, 2010 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

2 Answers

Wiring for dual 30 gal heat element. changed both elements. need to put wiring back


Hi,
Go to this link and page down, it gives you the wiring diagram for a dual element hot water heater.

http://www.plumbingsupply.com/element-installation-instructions.html

I hope that this will help you to solve your problem!

Thanks for using Fixya!!

Heatman101

Dec 09, 2009 | Element Water Heaters

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