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Wher do i find a thermal switch for whirlpool water heater

The switch has one of the connectors brokeen off. i need a new one

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I would love to help get you back into hot water. Can you contact me directly so I can help?

Thanks! ~ Chris

American Water Heater, authorized licensee for Whirlpool Water Heaters

Posted on Jan 05, 2013

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1) Call whirlpool and give product type, model number, and serial number that shows on label on side of unit.

2) For gas: Likely they will send whole assembly

3) For electric thermal switch, just replace upper thermostat.

4) Repost question and include information on label

5) Call service technician

Posted on Jan 02, 2013


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Posted on Jan 02, 2017

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SOURCE: reliance gas water heater 640ycrs pilot light will

if water heater will heat a tank of water before the pilot light goes out you need to replce the gas thermostat

Posted on Mar 17, 2010

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1 Answer

Water heater not working. Light is off o electronic board but has 220 power going to it.

Still I would check the power cord, the connector and the switch. Then I would check fuses and in the heater if the overheating security did not trip.

Jan 31, 2015 | Whirlpool Water Heaters

1 Answer

Wiring diagram on whirlpool gas water heater

Whirlpool is AO Smith tank-type heater.
Year, model, type of heater not known.
So add a comment and then expert can look up the manual.

You probably have power vent, or dampered water heater, otherwise the only wiring would be for thermopile, thermal reset, and igniter.
Power vent, or dampered, of flow control water heaters plug into outlet, and wires from gas control run to the various components.
Copy following link to troubleshoot by type of gas control valve:

Don't forget to add comment and include model number that shows on label located side of tank.

Sep 21, 2012 | Whirlpool 6th Sense 40-Gallon 6-Year Tall...

1 Answer

We have a bradford defender model # MI403S6FBN7. How do we reset it. lost manual

Water heaters are a huge field of knowledge. Problem is not 100% clear.
There is a resettable thermal switch on the combustion door. This switch is round and has two wires that come from gas control valve. Thermal switch trips when combustion parts have not been cleaned and they cause overheated condition, or sensor reads temperatures above 180, or thermal switch has gone bad, or gas control has gone bad.
Add a comment with more information for continued help.

1) Bradford White support:

2) Bradford white mi403s6fbn is 6-year-warranty 40 gallon tank-type gas water heater with Icon electronic gas valve, and atmospheric venting.
Older models have the dial-type Robert Shaw or White Rodgers gas valve.
Open following link to see age of Bradford White:

3) Bradford white has 'product manuals' and 'service manuals' on following link:
Product manuals have general information and advisories that people can read about water heaters.
Service manuals are for plumbers and technicians, and do-it-yourselfers for testing and repairing water heaters.

4) Typical manual for your product shows different gas valves, lighting instructions, and advisories, and troubleshoot checklist:

5) Add a comment with following information if you want specific help with servicing water heater.
What are you trying to reset on the water heater?
What are the symptoms, and what have you noticed, and what have you tried so far?
Which gas valve does your water heater have? Please open typical manual and view images of the three basic gas valves.
When was water heater last serviced and cleaned?
How old is water heater?

Take a moment and rate answer:
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.
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Aug 30, 2011 | RTO Bradford White M-1-20U6SS 19 Gallon...

1 Answer

Atwood water heater lights and goes off. i can hit the switch and will light and go off. it has spark ignition. lights fine but goes out in 2 sec.

Remove the wires at both ends of the thermal cut-off that is located in the little plastic sleeve below the pressure relief valve area and it's connected to spade connector on thermostat disc. Once removed, connect the female spade from wire to male spade on thermostat disc, and try to light now. If all's o.k. replace thermal cut-off as it is a safety feature to protect in case of flame up.
If not, get back to me.

Jan 16, 2011 | RTO Atwood Water Heater - 6 Gal LP

1 Answer

Pilot wont light

If the pilot went out it could be hard to see the pilot. If you have a model that has a sight glass the pilot will be up and to the left. Knowing where to look may allow you to see the pilot easier.
Some models may have a white thermal reset switch which is located to the right opposite of the sight glass. If your model has this you will see it after removing the outer door. The thermal switch has two wires connected to it and in the middle has a small reset to push. After pushing the thermal switch you may relight the water heater.
If this does not work the manufacturer can offer technical support. Their number is 1-877-817-6750.

Sep 29, 2010 | Whirlpool Water Heaters

1 Answer

My Rv water heater will not stay lit for longer than 2 minutes. There is no sticker with the product name on it. The model # is G6A-4E, it uses a GAS LIGHTER direct spark ignitor to lite. I have cleaned...

If your water heater dies, here's a quick way to find out if it is the Thermal Cutoff. First, MAKE SURE there are no obstructions in the flue tube. Then turn off the water heater's electric mode and turn on the gas mode. With the exterior access door open and looking at center of the water tank you'll see a black foam-covered area with 4 wires running to it. Look for the area marked T-STAT with two brown wires running to it. One of the wires will have a piece of clear tubing over it that covers a large diode- this diode is the Thermal Cutoff. (Mine didn't look burned or in any way defective, so a visual inspection won't tell you if it's bad or not.)
Remove the diode from the T-STAT terminal lug then disconnect the other end of the diode from the brown wire connector. Now connect the brown wire (without the diode attached) directly to the T-STAT terminal lug. Give it a few seconds and the water heater should turn on in gas operation mode. If it does, that means the Thermal Cutoff is bad and you'll need to get a new one from Atwood. Leave the wire hooked up, turn on the electrical mode to supplement gas mode (if you want) and you'll have hot water till you get the new Thermal Cutoff.
If the water heater doesn't turn on after a minute or so chances are it's not the Thermal Cutoff and you'll have to look elsewhere for your problem.

May 03, 2010 | RTO Suburban Rv Water Heater Dsi Gas Valve...

1 Answer

Reliance gas water heater 640ycrs pilot light will not stay after 1 heat period replaced thermal couple has gas thermal switch

if water heater will heat a tank of water before the pilot light goes out you need to replce the gas thermostat

Mar 04, 2010 | Reliance & 30 Gal LP Gas Water Heater

1 Answer

Followed the directions for light the pilot light, but no luck. water heater less than 2 year old

you may need a new thermal couple....if it will not hold a pilot light , that is where I would start.

Oct 17, 2009 | Whirlpool Water Heaters

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