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maytag side by side refrigerator mzd2766gew does not cool

MZD2766GEW Freezer is like fridge fridge is warm

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14 replies to this topic

#1 motoxmuseum

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Posted 31 July 2015 - 12:33 PM

The freezer side is cool enough to be the fridge but will not freeze ice. The Fridge side is warm. The evaporator fan is running and there is no compressor fan that I can see. The compressor is warm to the touch. The ADC was changed a while back (again) and the unit ran fine. The compressor starter capacitor was also changed by someone else. (Why is not known) The unit will intermittently start working correctly. Some times after moving the temperature controls. What should I check.

 

Thanks

Paul



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#2 Maytag1

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Posted 31 July 2015 - 11:31 PM

There should be a condenser fan running. Also do you have a full pattern on evaporator coil? Is it frosted up badly?

#3 motoxmuseum

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Posted 01 August 2015 - 07:37 AM

The design of the unit looks like the airflow out of the evaporator fan also goes across the compressor. There is no dedicated compressor fan. The evaporator is not frosted up at all. 

 

Thanks

Paul



#4 vee8power

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Posted 01 August 2015 - 09:29 AM

The evaporator and evaporator fan are behind the rear wall of the freezer. The condenser and its fan are outside the unit in the back, right next to the compressor. We need to get a look at the evaporator;

Maytag asked what the frost looks like there.



#5 evaappliance

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Posted 01 August 2015 - 10:02 AM

I used to sell those , they for sure have a condenser fan.  the adaptive defrost control is the most common deal on these. 



#6 vee8power

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Posted 01 August 2015 - 11:40 AM

If you have a defrost problem, then it might be the ADC. Check out the "warm refrigerator troubleshooting flowchart" at the top of the kitchen forum and it will narrow down the problem. Let us know what you find.

#7 motoxmuseum

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Posted 01 August 2015 - 12:04 PM

I have changed the ADC and it fixed the unit for a short time. However just moving the temperature controls has fixed the unit so I have my doubts the ADC is dead after a couple of weeks. I can always pull and test the relays. This has been a intermittent issue for 6 months but  now seems to be always like this. I assume the evaporator is at the back of the freezer behind a panel. Any suggestion on getting in to check it other than looking at the parts blow up image. So yes the condenser coils look clean, the compressor fan is running. 

 

Thanks

Paul



#8 Budget Appliance Repair

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Posted Yesterday, 04:42 AM

Next time you find it off and the temps are too warm, give the temp control area a good smack and see if the fans come on and it starts cooling again.  If it does you have a bad cold-control/t-stat, when the points start getting burned up they can't carry a current thru them when it does a normal cycle - hitting the control or turning it off and back on will snap the points together to make good enough contact to start working again.


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#9 motoxmuseum

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Posted Yesterday, 07:37 AM

How do you check if the compressor is running. You can hear the evaporator fan inside the fridge and visually check the compressor fan. Both seem to be running constantly however I am not convinced the compressor is running properly. I have a full set of electrical test equipment in my home office so I can measure everything from current/voltage to power consumption at the wall. 



#10 vee8power

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Posted Yesterday, 02:29 PM

Put an amp clamp around one of the wires leading to the compressor and look for around an amp and a half; sounds like it's running though if it's warm. What would really tell the story is the frost. Take the lower panel off the rear wall of the freezer and look at the frost.



#11 evaappliance

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Posted Yesterday, 05:23 PM

Also, Something I run up on is if it has a white relay and overload on the compressor , unplug the refrigerator ,unplug the relay , shake it and if it sounds like a baby rattle replace it. That can cause a intermittent starting condition.

#12 DurhamAppliance

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Posted Yesterday, 07:06 PM

simply touch the compressor. If it is warm AND vibrating , then it is running....Very Hot or not vibrating could suggest compressor problem.....but replacing your cold control thermostat as well as looking at your frost pattern as earlier advised is what I would suggest you do as well.

Edited by DurhamAppliance, Yesterday, 07:08 PM.

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#13 motoxmuseum

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Posted Today, 06:45 AM

The evaporator coil is all frozen up with frost. I just changed the ADC (Third time on this fridge over it's life) but this board lasted less than 60 days. Any ideas why the ADC board is dying so fast? 



#14 evaappliance

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Posted Today, 11:57 AM

nothing shocks me anymore with whirlpool/maytag electronics, most likely a bad part , but if you want to be on the safe side ,go ahead and put a new defrost thermostat in . they can work intermittently and throw you off too .  very easy to miss !



#15 DurhamAppliance

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Posted Today, 01:41 PM

Agreed,  the board may not have been the problem.... have you attempted diagnostics to see if the defrost circuit is closed? 


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