Tired of guessing on service calls?

Click here to check out our structured, online appliance repair training courses for rookies and experienced techs.

FAQs | Repair Videos | Academy | Newsletter | Podcast | Contact

Stay connected with us...

Samurai on Facebook - become a fan today! Sign up for our free newsletter and keep up with all things Appliantology. Subscribe to our YouTube channel for lots of appliance repair tips and help! Follow the Samurai on Twitter and get timely morsels of Appliantological Wisdom! Subscribe to our MST Radio podcast to learn secrets of the trade.
Cobra

Freezer works, but refrigerator doesn't

21 posts in this topic

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?

Share this post


Link to post
Share on other sites

Need appliance parts? Call 877-803-7957 now!

Thanks for the response.

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

Share this post


Link to post
Share on other sites

Model number is: MTB2456AEW

Thanks.

Share this post


Link to post
Share on other sites

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.

Share this post


Link to post
Share on other sites

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.

Share this post


Link to post
Share on other sites

White fuzzy ice or a slab of clear frozen water?

Share this post


Link to post
Share on other sites

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.

Share this post


Link to post
Share on other sites

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

Share this post


Link to post
Share on other sites

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.

Share this post


Link to post
Share on other sites

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

Share this post


Link to post
Share on other sites

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.

Share this post


Link to post
Share on other sites

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.

Share this post


Link to post
Share on other sites

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.

Share this post


Link to post
Share on other sites

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.

Share this post


Link to post
Share on other sites

[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.

 

Share this post


Link to post
Share on other sites

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.  

Share this post


Link to post
Share on other sites

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.

Share this post


Link to post
Share on other sites

Thanks for the response. I will begin defrosting. Is there someplace on the internet where I can see a diagram of how to change the timer, thermostat and heater? I'm not even sure where they are located in my refrigerator.

Share this post


Link to post
Share on other sites