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Freezer works, but refrigerator doesn't


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20 replies to this topic

#1 Cobra

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Posted 15 June 2005 - 03:23 PM

I would like to repair this 6-yr-old Maytag refrigerator rather than buy a new one, but I need some advice. The freezer works fine but the refrigerator won't get any cooler than 68 degrees. The unit seems to run for long periods of time, but not constantly. I've turned both of the termostats up, but to no avail. I don't think the vent that feeds the cold air into the frig from the freezer is blocked, but I don't know that for sure. What should I do now?

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#2 Samurai Appliance Repair Man

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Posted 15 June 2005 - 03:42 PM

Start with the diagnostics at the link below and post your findings back here:

http://fixitnow.com/...-repair-manual/


#3 Cobra

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Posted 15 June 2005 - 04:00 PM

Thanks for the response.

Can you tell me where I will find the thumb screw?


#4 Samurai Appliance Repair Man

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Posted 15 June 2005 - 04:06 PM

Only if you can tell me your model number:

http://www.appliance...m/forum1/7.html


#5 Cobra

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Posted 15 June 2005 - 04:39 PM

Model number is: MTB2456AEW

Thanks.


#6 Samurai Appliance Repair Man

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Posted 15 June 2005 - 05:16 PM

Inside the beer compartment, up top. Look on the underside of the control console. You'll see a hole. It's item 15 in this picture.

#7 Cobra

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Posted 16 June 2005 - 03:09 PM

I missed this the first time, but upon checking the freezer compartment I find a thick layer of ice buildup across the bottom back of the compartment. Does that help with the diagnosis of the problem and what should I do next? Thanks for the help.

#8 Samurai Appliance Repair Man

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Posted 17 June 2005 - 03:22 AM

White fuzzy ice or a slab of clear frozen water?

#9 Cobra

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Posted 17 June 2005 - 05:30 AM

It is white, fuzzy ice.

#10 Pegi

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Posted 17 June 2005 - 01:06 PM

Your defrost system is probably out, and you will have a bad defrost timer/ADC board, or defrost heater or defrost termination thermostat.  You will need to see which of these parts have failed or a combination of the three.
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#11 Samurai Appliance Repair Man

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Posted 17 June 2005 - 01:08 PM

No ADC board on this one.  Go ahead and replace both the defrost timer and the defrost thermostat. 

#12 Cobra

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Posted 17 June 2005 - 02:45 PM

There are two different defrost thermostat assemblies shown on the repairclinic.com site. One of them--791286--is not in stock. The other one--664901--is in stock. They look the same in the photos and they are the same price. Will either one work or do I need a specific one? Thanks again for all your help.

#13 Samurai Appliance Repair Man

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Posted 17 June 2005 - 02:57 PM

Either will work on this refrigerator, order the one that's in stock.


#14 Cobra

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Posted 15 July 2005 - 03:23 PM

I am going to order the defrost timer control and the defrost thermostat assembly. Should I also replace the defrost heater assembly? We've been out of town and I haven't had a chance to tackle this, but I must move forward now. Thanks for the help.

#15 Pegi

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Posted 15 July 2005 - 05:06 PM

Yes, repalace the heater also incase it is bad, that way all is new.  You need to defrost all of the ice out of there also.
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#16 Cobra

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Posted 16 July 2005 - 03:43 PM

If I replace these parts do you think that will fix the problem? How difficult is it to replace these three parts?  The freezer is working fine and it just isn't sending the cold air to the frig part.

#17 Pegi

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Posted 16 July 2005 - 06:08 PM

As these 3 parts are the whole defrost system cannot fail to solve the problem.  Ice is an insulator, once it builds it it blocks the cold air from blowing from the freezer to the food compartment.  Heater is at the bottom of the evaperator in the freezer, bi-metal is at the top of the coil, defrost timer should be in the food compartment.
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#18 Samurai Appliance Repair Man

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Posted 16 July 2005 - 10:45 PM

[user=1381]Cobra[/user] wrote:

If I replace these parts do you think that will fix the problem?

Oh, ye of little faith...

How difficult is it to replace these three parts? 

Two mugs on the SUDs-o-meter.

 


#19 Cobra

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Posted 29 July 2005 - 03:22 PM

I have received the defrost timer, defrost thermostat and defrost heater and tomorrow I am going to replace them. Can you tell me where I can find where each of these are located on my refrigerator? Maytag model number MTB2456AEW. Does the freezer need to be defrosted before I begin or can I just unplug it and start the repair work?Is there anything else I need to know? Thanks for all your help.  

#20 exsearsguy

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Posted 29 July 2005 - 05:25 PM

Your freezer needs to be defrosted. I would unplug it,clean the food out and then put a pot of boiling water in the freezer and then close the door and change water every hour or so till I went to bed if I were you.That should help defrost it for you without a lot of work.




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