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Replacing a temperature sensor.

Proper way to replace a temperature sensor on a whirlpool electrice water heater?

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  • bgtyh Nov 28, 2008

    piolit wont stay lit

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Posted on Nov 28, 2008

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What does sensor failure error code mean


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

Is this a heat pump water heater?
Or whirlpool energy smart?
Maybe the temperature sensor.

Gene

Oct 22, 2014 | Water Heaters

1 Answer

How to replace temperature sensor in Whirlpool water heater


Whrilpool will send information.
Copy following link for resources, including images showing temperature sensor (thermister):
http://waterheatertimer.org/Whirlpool-Energy-Smart-electric.html
http://waterheatertimer.org/images/Whirlpool-energy-smart-part.jpg

Remove cover on outside of tank.
The foam insulation is very stout, and must be cut back to access sensor located above each element.
Insulation must be put back when finished.
After insulation is cut back, it appears you can remove the sensor... I am assuming the wiring can be unplugged, or spliced. It is not possible to replace wires that run between sensor and top of tank because the foam insulation is too tight and wiring is not inside a conduit.

Add a comment and say what you discover.

Apr 11, 2013 | Whirlpool Water Heaters

1 Answer

Model # EE3Z80HD055V sensor failure?


1) Copy following link for troubleshoot resources including service manual, parts ordering, and general repair information:
http://waterheatertimer.org/Whirlpool-Energy-Smart-electric.html

2) 'Sensors' are temperature sensors located above each element, behind the foam insulation, behind the metal doors on side of unit.
Sensors feed temperature information to the computer chip that decides when to turn elements on-off.

3) Order parts direct from Whirlpool.

Feb 02, 2013 | Water Heaters

1 Answer

Control on whirlpool EEZ8OHD055V Blinks twice, no hot water


1) Call Whirlpool. 1-877-817-6750
Have them send 2 new thermistors (temperature sensors located above each element), and then install according to the instructions they give you.

2) Sounds like you have the American brand older energy-smart electric water heater with grey control box on top
Copy following link to exactly identify product and resources
http://waterheatertimer.org/Whirlpool-Energy-Smart-electric.html#energy-old

3) Two flashes is 'high water temperature shut down.
Buy cheap multimeter from hardware store. Install battery. Set to read ohm, the upside down horseshoe symbol.
Use multimeter set to read ohms, and test thermistors
Copy following link for general service manual showing error #2 and thermistor resistance chart on page 10
http://waterheatertimer.org/pdf/Energy-Smart-troubleshooting-guide.pdf

Oct 07, 2012 | Water Heaters

1 Answer

Water in basement in flood that covered the lower element. When power was turned back on, the green light on the top of the heater was blinking twice. When I hit the reset button, it is now blinking...


Yes sensor should be replaced along with lower element.

1) Manufacturer's say that flooded water heater should be replaced: Call homeowner's insurance company.
http://waterheatertimer.org/Flooded-water-heater.html

2) Brand of water heater is not known, but it could be the American or Craftmaster or Whirlpool energy-smart electric with control box.
http://waterheatertimer.org/Whirlpool-Energy-Smart-electric.html

3) With energy-smart:
1 flash is start-up failure, and 3 flashes is sensor failure.
The moisture probably shorted element and/or lower sensor.

4) The moisture inside tank will take long time to dry out, especially since the foam insulation is wrapped tight. To dry out element and sensor, you have to remove cover and insulation over element, but if you leave insulation off and run water heater, then the sensor is exposed to cool outside air and will not read temperature inside tank.
Plus a wet water heater is electric shock hazard.

5) Add a comment for more free help.

6) Take a moment and rate answer for accuracy:
And 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.

Sep 13, 2011 | Water Heaters

2 Answers

My 40 gallon whirlpool electric water heater stopped working today


The thermostat (either the upper or lower if it has two thermostats) has an integral circuit breaker that trips if a problem occurs. First try resetting the breaker. Look for a red button in the middle of the thermostat (which will most likely be behind a metal panel. BE SURE to shut of the breaker in the electrical panel that serves the water heater.

The water heater should start to heat up if the thermostat breaker doesn't trip right away. However, if the breaker on the thermostat trips again at any time, there is most likely a short in the thermostat and it needs to be replaced.

They two thermostats are not identical. The upper unit typically has three wire connections while the lower unit only has two.
If you find that one of the units must be replaced, ensure that you get the proper replacement. Then, you should mark the wires and their connection points and then disconnect them. The thermostat can then be slid out of the clasp that holds it to the tank. Slide the replacement in and reconnect the wires and ensure that they are tight.

You should complete your water heater thermostat replacement by turning the power to the unit back on. Observe the proper operation of the water heater and ensure that the thermostat is set at the desired temperature. (The temperature should normally be set at 120 degrees to save energy and avoid burns.)

Only you know your level of ability. Water heaters are high voltage and draw a high amp load. If you feel you cannot safely perform this work, do not attempt it. Call a plumber instead.

Hope this helps.

Apr 27, 2011 | Whirlpool Water Heaters

1 Answer

Our water heater is doing the same thing. . Before I replaced the board I checked the elements, both were about 13.5 ohms, after checking I made sure to replace all insulation and closed the access covers...


1) You have given good diagnostic information ... except brand and model number of water heater are missing.
Locate this information on label on side of tank.

2) 2 flashes for high temperature indicate you have Whirlpool or Craftmaster Energy Smart.
You have dual element 240V tank-type electric water heater with electronic control board and temperatures sensors.
Sensors can be ordered separately for $30 each.
Sensors seem like best suspect since elements test out and you have new control board.

3) Did you test elements for short to ground through center of element?
http://waterheatertimer.org/How-to-test-water-heater-element.html

4) Energy smart requires 10 gauge wire and 30 amp breaker. If wire or breaker are undersized, then I would expect chronic problems with electronics. I believe the requirement is so element draw or other factors don't starve electronic control board.

5) How it works: Energy smart is non-simultaneous water heater. Non-simultaneous means upper element turns on first. When upper temperature sensor is satisfied, control board cuts power to upper element and sends power to lower temperature sensor and element. So both elements are never ON at same time. Lower element runs until lower temperature sensor is satisfied. I do not know decision tree for how microchip processes the information.

6) I have examined this water heater and read the manual. I wrote following page, but have not conducted electrical testing on unit simply because it is controlled by micro-chip.
http://waterheatertimer.org/Whirlpool-Energy-Smart-electric.html

7) Sample Energy Smart manual:
Manual does not show how to test temperature sensors, but manufacturer might have more information. Manufacturer might have information how changing meter can affect their electronics.
I would guess undersized wiring would have greater impact than electricity turning off for 1 minute.
http://waterheatertimer.org/pdf/Whirlpool-energy-smart-electric-manual.pdf
Whirlpool 1-877-817-6750

8) 4500 Watt elements should test 12.3 ohms, so your elements check out fine.
Be sure to test for short to ground by setting multimeter to ohms, remove wires from element, and test each screw to bare metal part of heater and to metal base of element.
http://waterheatertimer.org/images/ohm-reading-for-emements.jpg
http://waterheatertimer.org/How-to-test-water-heater-element.html

9) The water heater industry changes very fast, so current manual is best place to start troubleshooting.
If you have different brand than shown above, then open following link to identify manufacturer's website:
http://waterheatertimer.org/Water-heater-manufacturers.html
Add a comment if you need help finding information

10) Post question on professional water heater forum for more eyes on same question:
http://www.thetankatwaterheaterrescue.com/forums/forum3/

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 | Water Heaters

1 Answer

Whirlpool Energy Smart Water heater - light is solid green then every now and then blink a couple of times then go solid again.What does this mean?


2 flashes = high water temperature (the water heater comes set at 120, and you can set it lower or higher)
3 flashes = sensor failure (temperature sensor similar to a thermostat on regular water heater)
4 flashes = upper element
5 flashes = lower element
Links below are for Whirlpool manuals
http://www.whirlpoolwaterheaters.com/support/Manuals.aspx
http://waterheatertimer.org/pdf/Whirlpool-energy-smart-electric-manual.pdf

The water heater is working right now.
If the elements go out, they are available at any hardware store.
The temperature sensor is easily replaced and can be ordered from Whirlpool.
You might want an extra temperature sensor on-hand so repairs are not delayed.
Link below shows the product in detail.
http://waterheatertimer.org/Whirlpool-Energy-Smart-electric.html
Let the water heater do its job until it fails.

Oct 22, 2010 | Water Heaters

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