Gremlins?? WET3300SQ1 whirlpool stacked


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Old 06-16-10, 10:58 AM
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Gremlins?? WET3300SQ1 whirlpool stacked

This machine is only a few months old. A few weeks ago, wifey say water is hot when should be cold, and vice versa. I took a quick look and seemed to be what she said. I waited until I had a day off, and was going to tear into it today, but checked again before I started taking things apart. Lo and behold cold is cold and hot is hot!!!!!!!!!!

Is there anything which could be intermittent fubar in the water control to do this?? I notice on the wiring diagram that the water temp is not just switches, there is a module called the ATC switch, and and ATC sensor.

Are we overthinking this, or has anyone seen a problem like this.



As an aside, when the machine was just two weeks old,a non resettable thermal limit went out for no apparent reason. I could have called for warranty service, I suppose, but I just replaced it. Is this a sign of the times...too many parts made in china, etc??? The predecessor was essentially identical to this machine...Whirlpool 27" thin twin. Lasted for 20 years, and actually was still working, but starting to show signs of problems, and found a good sale on the WET3300. When I look at the parts lists for the old machine, most of the part numbers when you dial them in cross to the identical part # in the new machine! Looks like not much innovation went into this baby!!!


Anyway, sorry for rambling on. I really just am interested to know if there is something to be on the lookout for in the water circuit.


Thank you very much!
 
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Old 06-17-10, 05:47 AM
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Fed. mandated water temps, Cold is tap cold, warm is around 80, Hot should be hot but check manual may regulate how hot, hot is. Also on your washer do not open lid after starting, it will set everything back to a few load.
 
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Old 06-19-10, 02:31 PM
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Here is the wiring diagram inside the unit, for the temp control. Could that ATC sensor, or ATC switch, cause such problems.???
http://img.photobucket.com/albums/v5...79/atc0001.jpg
 
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Old 06-19-10, 03:34 PM
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yes. Look back a few weeks ago and a member had a fix for you. Nothing wrong with washer it's the way they are made now.
 
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Old 06-19-10, 06:09 PM
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Thanks for all the info. From what I can determine, the COLD setting of the switch should give you just COLD, but in any event, nothing runs but HOT. I triple checked...it is coming in the LOWER water connection, to the valve with the RED connector.
Here is a picture of what is apparently a sensor in the outlet of the water valve: http://img.photobucket.com/albums/v5...9/DSCN0494.jpg

From a parts list another guy showed me, it looks likt the sensor is part of the water valve and cannot be separately replaced!!!!

I am tempted to just wire around the switch!
 
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Old 06-20-10, 04:26 AM
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That is a new washer, Call company you bought from and they will send a repair tech out and replace valve, If less than year old. They have some bad thermistors on those valves. Sorry I misunderstood I thought you were talking about temp. control not always hot water.
 
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Old 06-20-10, 08:12 AM
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Thank you for taking the time to help me on this. Naturally, most sane people would call for warranty service! The machine was purchased new in about March 2010. I found out from the serial number ( MW2212244) that is was made in May 2008, so it sat around a warehouse for a couple of years before I came along and bought that lemon!

Anyway, my wife is somewhat phobic about having repairmen in the house...germs, dirt, etc. Just something I have to put up with.

This mornig, I tested the thermistor and it seemed to be ok per a chart I found in the Accuwash job aid. Reads about
65K ohm at ambient (60F) and decreases to about 25K ohm as hot comes in ( hot is about 125F). So, I am thinking the ATC swicth may be bad. I don't know if Whirlpool provided parts for free to homeowners doing their own repairs in the warranty period. If not, I will just have to suck it up.
 
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Old 06-28-10, 07:54 PM
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fixed....I hope.

I wanted to update the forum on this issue. Someone turned me onto a whirlpool tech tip on the issue. Some versions of the ATC switch were improperly calibrated and could cause a reversal of hot and cold water!!! Replacement of the switch with an updated part is the fix. I installed my new switch today and hope this problem does not come back!!!!!!!

Thanks to all who helped out, and I hope this feedback is useful to some other folks.
 
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Old 01-05-11, 01:01 PM
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I'm having the same problem. Can you help?

Hey, I'm having the same problem with my whirlpool stack washer/dryer. Can you tell me which part I need? Where I can get it? I'm not the handiest person around, is it a relatively easy fix? Any help would be appreciated!
 
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Old 01-05-11, 02:48 PM
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Model # please. How old is washer?
 
 

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