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Maytag MZD2766GEW refrig not cooling

wide-by-sides

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7 replies to this topic

#1 olddawg

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Posted 24 December 2011 - 09:27 PM

Yet another perplexed wide-by-side owner! Refrigerator stopped cooling two days ago, though icemaker still making ice but clogging up more often. Could not find a repairman willing to interrupt their Christmas plans, so hit your site and others and everything I read pointed to the ADC board. Found one available in Ontario (2.5 hrs round trip), installed it, cleaned everything up, restarted unit. After a day, freezer temp at 4 degrees F, refrig tem 35 degrees F. What a feeling of success!
Turned out to be short-lived -- tonight (Christmas eve) freezer 10 deg, refrig 45 deg. Pulled freezer rear panel, evaporator coil not frozen up. Located air vent in refrig, felt cool air coming in, and was able to vary amount using the refrig control lever. Compressor was turning on and off yesterday and this morning, sounding normal, but now is running constantly. Food stored in coolers, fully iced, but not sure about how much longer we can trust it. Any ideas? Thank you!

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#2 RegUS_PatOff

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Posted 24 December 2011 - 10:15 PM

post picture (somewhere) of frost pattern of Evaporator Coils inside Freezer after Compressor has been running at least an hour
(not right after a Defrost Cycle)
.

one of my video productions: “Easter Seals: Walk With Me”

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#3 olddawg

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Posted 24 December 2011 - 10:35 PM

There is no appreciable frost or icing other than a very light dusting on the right end where the tubes make 180 degree bends. Don't have a digital camera available, but hope this will help. Thanks.

#4 RegUS_PatOff

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Posted 24 December 2011 - 11:07 PM

should be light even frost over the entire Evaporator,
OR may have a Sealed System leak
.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#5 olddawg

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Posted 25 December 2011 - 06:58 PM

Have tracked this since last contact. Freezer side is functioning well(?): temp goes down to -5 degrees, then compressor stops, when it starts again, temp has gone up to 4 or 5 degrees, and then repeats over several cycles. But temperature in refrig side goes as high as 45 degrees before compressor side kicks in, and never gets below 41 degrees. Doesn't that suggest it's not a system leak problem, but rather that not enough cold air is being vented from the freezer side into the refrigerator side? I know the fan is working, and the unit is making ice consistently. Are there adjustments that would let me increase the airflow into the refrig? Is it possible that, when we pulled the temperature control cover panel to replace the ADC board, we screwed up the vent alignment? Thanks for your help -- hope you had a reasonably stress-free Christmas.

I probably should be able to figure this out, but they didn't teach us this intricate stuff back in 1957 at Marquette College of Engineering!!!

#6 jumptrout

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Posted 25 December 2011 - 07:51 PM

Your damper in the top left of the fresh food section may not be open.

#7 RegUS_PatOff

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Posted 25 December 2011 - 08:38 PM

... Is it possible that, when we pulled the temperature control cover panel to replace the ADC board, we screwed up the vent alignment? !

it's possible ...
make sure that the "notch" (shown on the left side of the Gears "teeth")
Posted Image

aligns with the center "notch" (not shown) of the temperature Control Rods "teeth"
and that both Control Rods have full "left" and "right" travel
Posted Image

post picture (somewhere) of frost pattern of Evaporator Coils inside Freezer after Compressor has been running at least an hour


.

one of my video productions: “Easter Seals: Walk With Me”

every day is Down Syndrome Awareness Day
"A Child Is Waiting" . Burt Lancaster . Judy Garland . 1962

RegUS_PatOff > www.youtube.com/watch?v=oPAY2LsKVEw

#8 olddawg

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Posted 26 December 2011 - 09:21 PM

Thanks for everybody's help! Problem seems to be solved: freezer running between -3 and +3, refrigerator running 38 to 40. Turns out the fix worked (new ADC board), but we were attempting to check its performance with thermometers in an empty refrigerator. My beloved wife asked me: "I wonder if it would be better to put everything back and then check it?" We did it, and it worked!




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