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Marathon generator only put out 40 volts?

Started my generator when I lost power, but could not get more than 40 volts out of my generator that normal putout 240 volts

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: POWER PROB: I have an 85

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

Posted on Jan 11, 2011

Testimonial: "Thanks for the quick response/the great links! The power issue is fixed, and I have a better understanding of the thermostat operation. Thanks again"

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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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I cant get the water temp below 125 and I need to for our day care. I have the lower thermostat set to 110 and it still is 125 to 130 degrees. Is there something else I need to do. There is a upper...


You have marathon water heater?
Thermostat is probably bad. Has gone out of calibration.
Replace both upper and lower thermostats for $25 from local hardware store, takes about 20 minutes, turn off power, take photo of wires before starting. These thermostats can be adjusted all the way down to 90 degrees, and then dial up a bit to reach 110.
Copy following link for instructions how to replace thermostat yourself.
http://waterheatertimer.org/How-to-replace-thermostat-on-electric-water-heater.html

If problem continues, then replace both elements.
Elements are special order made specifically for marathon.
Requires 1-7/8" socket to remove elements.
Upper 3800 watt, order part SP610130
Lower 3800 watt, order part SP210197
http://hometips.me/Mar/Rheem-Marathon-parts-2.pdf
http://waterheatertimer.org/How-to-replace-water-heater-element.html

More information about Marathon:
http://waterheatertimer.org/Review-Rheem-Marathon-water-heater.html

Gene
h

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1 Answer

Rheem marathon vacuum valve


Copy following link for Rheem marathon parts and resources:
http://waterheatertimer.org/Review-Rheem-Marathon-water-heater.html

Add a comment March 2013 and describe problem in detail.

Mar 22, 2013 | Rheem MR50245 Marathon Electric Water...

2 Answers

How do I replace the heating elements in my Rheem water heater


Replace heating elements can be found at amazon, click here and take a look: Amazon com rheem heating element . I hope this was helpful... cheers

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1 Answer

Rheem marathon tripping breaker


Turn power off. Open covers and inspect for burned parts.
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html#trip-breaker

Test elements. Marathon takes specific element, and does not use generic element from hardware store.
http://waterheatertimer.org/How-to-test-water-heater-element.html

Oct 27, 2012 | Rheem MSR50245 Marathon Electric Water...

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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

1 Answer

My preasure valve is leaking it is the second time i have to change it in 4 years. is that normal


http://www.thetankatwaterheaterrescue.com/forums/forum3/

There are reports that elements on the Marathon cause problems.
This comes from the guys who repair water heaters.
But I think the problems are mostly that the elements burn out frequently and are expensive to replace.
There may be other brand-specific problems I'm not aware of

Another thing you can do is put an expansion tank on the incoming cold water line.
Expansion tank is used when water heater temperatures are set high
The expansion tank absorbs pressure during high-heat events so pipes and tanks and pressure valves last longer.

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Oct 30, 2010 | Water Rheem MR40245 Marathon Electric ...

1 Answer

Just installed new marathon water heater and hae


check the water control valve to see if it is fully opened

Mar 07, 2010 | Water Rheem MR40245 Marathon Electric ...

1 Answer

No heating coming through on the floor, controller not responding to the action given


SOUNDS LIKE IT COULD BE THE TERMOSTAT IS FAULTY REPLACE IT AND IT SHOULD WORK FINE AGAIN .

Nov 10, 2009 | Water Rheem MR40245 Marathon Electric ...

1 Answer

There is no hot water


Do you know were your hot water tank is?
How old is your hot water tank?
Is it a gas or electric hot water tank?

Aug 15, 2009 | Water Rheem MR40245 Marathon Electric ...

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