Question about General Electric GE SmartWater Household Water Filtration System - GNWH38F

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Limited hot water from 62 gal ge model D03666 looking for type and how to replace heating elements

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Open following links to get started.
If water heater has NO hot water, then best suspect is ECO reset button tripped on upper thermostat. Open upper cover and push in red reset button. If reset keeps tripping, I usually replace both upper and lower thermostat.

If water heater has some hot water, then upper element is good so test lower element.
http://waterheatertimer.org/How-to-test-water-heater-element.html
http://waterheatertimer.org/How-to-replace-water-heater-element.html
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

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Posted on May 23, 2011

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Reliance 501 Hot Water Heating element for 30 gal tank, where to purchase


You do not need special parts.
Wattage is printed on end of each element.
Buy generic elements at hardware store.
http://waterheatertimer.org/How-to-replace-water-heater-element.html

Apr 21, 2012 | RELIANCE ELECTRIC WATER HEATER

1 Answer

Rheem 49 gal model 81V400B - hot water lasting only 5-10 minutes then takes an hour to heat back up.


Ordinary tank-type electric water heaters are fully repairable by homeowner.

A) Basic info on Rheem
Rheem electric water heater website:
http://www.rheem.com/products/tank_water_heaters/electric_water_heaters/
Find age of Rheem: look 2nd and 3rd digit of serial number, for example 06 is 2006

B) Water heater has some hot water.
That says certain things: upper element is working, water heater electricity is working, reset button is not tripped, and heater is not experiencing run-away overheating event.
http://waterheatertimer.org/How-it-works.html

C) That leaves 4 suspects that cause lower amount of hot water.

1) TP valve is running hot water out of tank -or- leaking faucet is running hot water out of tank.
Check for leaks
http://waterheatertimer.org/How-to-replace-TP-valve.html

2) 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:
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

3) Burned or shorted wire located between upper and lower sections of tank.
Turn off power. Open covers on side of tank. Remove insulation. Inspect parts for signs of high heat and burning. Especially check 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.
http://waterheatertimer.org/How-to-troubleshoot-electric-problems-with-water-heater.html

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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 03, 2011 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

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I'm getting hot water for 2 minutes , then it gets cold


Most electric hot water heaters have two thermostats, one near the top of the tank and one near the bottom, and are covered by removable metal cover plates. The thermostats are pressed firmly against the bare metal wall of the hot water heaters tank.

The top thermostat usually has a high limit switch that will trip if the water gets too hot. When it trips it shuts off the electricity to both the upper and lower heating elements.

To reset the high limit switch there is usually a red button that you must press. When the upper limit switch trips it is often an indication that something else has gone wrong with the heater.


When the top of the tank is hot the upper thermostat removes power from the upper heating element and transfers the power to the lower thermostat and heating element. If the lower thermostat is defective, then the lower portion of the tank will not be heated and the supply will be greatly reduced.
Check for power at the upper thermostat terminals where the power is sent to the lower thermostat and heating element. If there is no power then the upper thermostat should be replaced. If there is power then check for power at the lower heating element. If there is no power at the lower heating element then replace the lower thermostat.
If there is power to the lower heating element then it should be getting hot. If it is not, replace it. Another possibility is a broken dip tube. Check for a broken dip tube and replace if necessary.

Hope this helps out

Feb 02, 2011 | General Electric GE SmartWater Household...

1 Answer

I put a new top thermastate, bottom thermastate, new top element, bottom element, on my electric 50 gal tank and didn't get hot water. Only 4years old. Bought a new GE 50 gal. tank and installed, even a...


Hi,

The next thing you need to do is find out whether you have 240v to the bottom element....the top will not heat till the bottom is satisfied...
An electric meter is critical when working with these units....trace the power and see where it stops....

here also are some tips that will help you...

Electric Water Heater Wiring Diagram
Electric Water Heater not Working
heatman101

Dec 04, 2010 | 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

Top heating element was broke. Replaced got hot water for week. Now have to run hot water for 20 mins before it goes from warm to hot. Top heating element reads 240VAC bottom heating element reads...


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.

Jun 20, 2010 | Rheem 50 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Rheem 50 Gal two 4500W heating element - not enough hot water


one element is off peak and one is boost could be thermostat or ripple controller in fuse box or one dead element

Apr 19, 2010 | Rheem 50 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

Hot water does not last long. Hot water heater is a 50 gal ge smart water heater. It takes a long time to heat and is not very hot when it reaches shower in the back part of house. Where are the coils or...


probably has a bad heating element. May be a little limed up also. Drain the heater and replace the elements. Take a special tool to remove and replace the elements. ( fairly cheap) You can probably get the elements and parts at a good hardware store. The people at the store probably will explain to you how to replace them. Feedback please if this was of help

Feb 20, 2010 | General Electric GE SmartWater Household...

1 Answer

Whirlpool energy smart water heater


Two flashes means that the high limit temperature has been reached. Once this happens, the temperature control system will shut off. Make sure that all element access doors are in place. Push the "Push to Reset" button to restart the temperature control system. The water heater will self test for ten minutes before it will start to heat. If you get the 2 flashes again then you may need to replace one or both elements. Each element should measure 5-25 ohms.

The "thermostat" is the knob marked "Temperature Control". Make sure that the operating mode is set to 1,2 or 3.

Dec 02, 2008 | Water Heaters

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