Author Topic: Estate washer ATC  (Read 2287 times)

Offline jumptrout51

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Estate washer ATC
« on: July 22, 2010, 06:34:08 AM »
I am dealing with an intermittent ATC(automatic temperature control) on an Estate top load washer. Model ETW4300sq0.
I need a service sheet for the ATC function.
The washer will fill fine on COLD/COLD one time. The next time it will start off COLD then switch to full HOT.
I am suspecting a bad thermistor,but do not know the thermistor values.
Wouldn't a cold/cold selection override the thermistor and stay on the cold valve?
Take a Kid fishing.

Offline RegUS_PatOff

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Re: Estate washer ATC
« Reply #1 on: July 22, 2010, 08:15:57 AM »
Wouldn't a cold/cold selection override the thermistor and stay on the cold valve?
yes ..

no "Thermsitor"

Hot Bi-Metal
Cold Bi-Metal

ETW4300SQ0 Tech Sheets

uses TSC 8578337

problem doesn't seem posible
may need some voltage tests ...

« Last Edit: July 22, 2010, 08:20:14 AM by RegUS_PatOff »
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Offline jumptrout51

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Re: Estate washer ATC
« Reply #2 on: July 30, 2010, 06:37:17 AM »
The ATC was bad.
I took it apart.
There are 2 terminals attached to the stem with a contact below them.
When you turn the stem to CC/WC/HC the terminals make contact on a small dial. The dial was worn and made intermittent contact with the terminals.
Take a Kid fishing.

Offline schaffersapplian

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Re: Estate washer ATC
« Reply #3 on: July 30, 2010, 05:19:12 PM »
I had a Maytag SAV service call today.  Complaint, no warm water.  Fix= Thermo-disc attached to the water valve was failing and allowing to much cold water to enter in.  water temp was around 78, when it should have been 95

At first I almost just ordered a ATC board for it, but thankfully I didn't, and I had the valve on my truck!
Authorized Samsung, Electrolux, Whirlpool, GE, Fisher Paykal, and Maytag Servicer with over 10 years experience.

Offline jumptrout51

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Re: Estate washer ATC
« Reply #4 on: July 30, 2010, 06:43:37 PM »
You have to be careful.
I also found out the temp switches and water fill valves are different depending upon the 3 letter/digits after the model number.
« Last Edit: July 30, 2010, 06:45:12 PM by jumptrout51 »
Take a Kid fishing.

 

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