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Electrically Troubleshoot an Analog Pressure Switch from a WFW9500TW01


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6 replies to this topic

#1 bwze

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Posted 25 November 2014 - 11:38 AM

Does anyone know of a way to electrically troubleshoot this analog pressure switch from a WFW9500TW01?

 

Part number: AP5264563 



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#2 BryanS

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Posted 25 November 2014 - 12:38 PM

I think you are supposed to measure frequency, but I don't know what it's supposed to read at.

Edited by BryanS, 25 November 2014 - 12:38 PM.


#3 AARDL

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Posted Yesterday, 09:01 AM

What wrong with machine?



#4 applianceman97

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Posted Yesterday, 10:52 AM

Whirlpool does not give us techs that information. Who needs that right? Whirlpool is genius... NOT!

 

What symptoms are you having?


Kicks major Samsung booty first, asks diagnostic questions later.

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#5 bwze

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Posted Yesterday, 11:16 AM

Well, I've summed up everything I've done up to this point over in this thread, but for the sake of simplicity I started this new one specifically about this analog pressure switch

 

Washer is a Whirlpool WFW9500TW01...

 

Basically, something other than the CCU (I've changed it three times now) is causing an F 20 error in the Clean Washer cycle only....every other cycle works perfectly (I know, I know, why worry about this cycle if the others work.....simple answer, my wife).

 

Additionally, I can not advance past the C:02 step in diagnostic mode without receiving the same error. 

 

When I select the Clean Washer cycle, the machine goes through its normal door lock, door unlock, door lock sequence, then the drain pump starts......and runs for around 10 or 15 minutes until it throws the F 20 error.

 

At no time is voltage delivered to either of the water inlet valves. I say this because I've had people tell me that it's the flow valve, but I don't see how it can be the flow valve if the flow valve never sees water (maybe I'm wrong though).  

 

I've exhausted every bit of troubleshooting I can think of with regards to this problem and it seems that it may be related to the analog pressure switch somehow since the drain pump never seems to get a signal that the tub is empty and to stop in the Clean Washer cycle (again, only this one dang it).

 

I hate to drop another $100 an a new pressure switch for this piece of crap washer though without having someway to troubleshoot this switch. I've found this thread which dives in a bit deeper to what makes this part work, but I'm still a bit confused about what the expected output is for the various water level states.

 

It makes no sense to me though how the pressure switch can work exactly as it should in all other cycles but just not in the Clean Washer cycle (oh and the Diagnostic Mode too). 

 

So I'm still scratching my head and trying to get my wife to leave me alone......



#6 applianceman97

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Posted Yesterday, 02:42 PM

I had this exact same issue with the same model. I never got it fixed. I think whirlpools CCU is programmed incorrectly for this model. 

 

I found this on a duet sport so I wouldnt be surprised. 


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#7 BryanS

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Posted Yesterday, 05:40 PM

Whirlpool does not give us techs that information. Who needs that right? Whirlpool is genius... NOT!

What symptoms are you having?

Haha. You got that right. I get so ticked off over have to call the techline just to get a thermistor value. Yea the tech sheet does show the value for 3 diff temps but sometimes those sheets are wrong. I told my boss how pointless I find Whirlpools website because it never has what I need except a tech sheet once in awhile. Where is all the info on how this crap works and readings for certain parts. You know they have it because magically their techline knows the answers when you call them.

Edited by BryanS, Yesterday, 05:42 PM.





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