Question about Maytag MTB2156GES Top Freezer Refrigerator

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Frost building up in freezer i replace defrost thermostate bit still same problem

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  • Maytag Master
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If the defrost heater is good the automatic defrost control will need replacing.

Posted on Oct 10, 2010

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Fridge is cold, freezer is not


Please look into the freezer for frost build-up on the rear wall. If you are having a defrost problem it may limit the freezer temperature and still be cold enough for the fresh food section to remain at safe temperatures but not for long before freezer and fresh food section warms because frost blocks airflow and the evaporator is unable to keep everything cold because of frost build-up. I don't have your model number so I will list the parts that may need to be replaced. The defrost control=> 12002754 Frost Kit, defrost thermostat and 67002493 Defrost Heater Assembly
8_23_2012_11_19_19_am.jpg


67003426 Defrost Thermostat
8_23_2012_11_24_51_am.jpg

For testing of the defrost thermosat and defrost heater refer to the same page as the parts, If these parts are good the the 12002754 Frost Kit, could be defective. The 12002754 Frost Kit,
can be found in the control panel inside the fresh food compartment. Let me know if you have questions and also if you are not having a defrost problem, Thanks Sea Breeze
Locate your model number


8_23_2012_11_34_15_am.jpg

Aug 22, 2012 | Kenmore 24.8 cu. ft. TRIO Bottom Freezer...

1 Answer

How do i engage defrost


"Frost free" fridges automatically cycle in and out of defrost mode a couple (or more) times a day. There is no user intervention required. If your frost free fridge is building up frost, there's a good chance that the defrost circuit has developed a problem.

before digging into the defrost circuit: If frost is building up only on a door or door opening - this is an indication of a poor freezer door seal. Once the seal is repaired or replaced, the frost should stop building up. If the frost is throughout the inside the freezer - and the temperature of the fresh food compartment and eventually the freezer is climbing - then it's more involved than a door seal.

Typical problems areas of the defrost circuit are: the defrost terminator or sensor, defrost timer assembly and defrost heating element. While the circulating fan(s) is not part of the defrost circuit - it is usually visible and should be checked when inspecting defrost heaters and terminator components in the freezer. If the fan(s) has failed or is otherwise unable to spin, it should be replaced.

If you need more help, please provide the brand and model fridge you have. Good luck!

Sep 27, 2011 | Refrigerators

1 Answer

Hotpoint (GE)CTX18GJB not cold enough. Just had serviced - tech replaced defrost timer and defrost terminator. The top located freezer gets cold and can hear the fan running - but still not cold enough...


Hello,

I agree with the tech. if the refriderator isn't frosting it isn't working,their is only 1fan and its in the freezer,The tech could have missed some frost build up that is blocking the air flow into the fresh food section,if he removed all the frost it could take up to 24 hours to get cold ,it should slowly geta bit colder throughout the day,if by tomorrow its still not working have the tech come back and check for frost build up on the vents for air flow into fresh food compartment.
To reiderate their is two types of refrigerators,one that you have to manually defrost and a automatic defrost type where the defrost system which is comprised of the defrost heater,timer&termination t-stat will automatically melt the frost

Jul 28, 2011 | Refrigerators

1 Answer

Why would the fridge and freezer both stop working


check to make sure there is no frost in the back of freezer area... if no frost build up that eliminates a defrost issue... if there is you need to check the heater/thermost/and defrost terminator switch located on the coil...thaw the evap coil which will require removing back panel of freezer and shelves and use a hair dryer... if no frost build up then possible the compressor relay has failed.... are you hearing any clicking coming from the unit a click off every few minutes.. if so remove compressor relay and see if it damaged shake it if it rattles then most likely bad.... you can order online... good luck to you..

Jan 09, 2011 | Whirlpool 25.3 Cu. Ft. Side-by-Side...

1 Answer

Refrigerator not cool enough


Is it running? If so, the evaporator fan in the freezer and the condenser fan(if there is one) by the compressor need to be running. Check if compressor is running. Is there any frost build up on the evaporator cover? If so you have a defrost problem (bad heater, defrost thermost, thermister, defrost timer or circuit board). Check air channels between freezer and refrigerator sections for any ice blockage. If everything checks good you may have a sealed system problem which requires a repairman to fix and is expensive.

Oct 12, 2010 | GE Â 17.9 Cu. Ft. Top-Freezer...

1 Answer

Fridge not cool enough but frosty at the back


Since you are getting frost in you frost free refrigerator, tell me that the defrost circuit has a problem. It is made of a defrost timer/module, defrost heater and defrost thermostat. What should happen is that the defrost timer should periodically turn off the compressor for about 30 minutes and turn power to the defrost heater via the thermostat. The heater is attached to the evaporator coil and melts any frost build up on those coils.

It sounds like the defrost circuit has not been working for a while because the ice build up is not allowing the air to circulate around the coils to cool the refrigerator. The typical failures to the defrost circuit are the defrost timer motor fails to advance, or the defrost heater burns out. Hope this helps you.

Jul 14, 2010 | Kenmore 64802 Top Freezer Refrigerator

1 Answer

Not cold on top portion and not making ice also lot of frost in the back wall


You have a defrost problem or a bad evaporator fan motor. If your freezer fan is blowing your fan is ok. When you have a defrost problem you have a defrost heater, defrost thermost or control board problem that does not let you unit go into defrost mode. The frost builds up to the point that their is no air flow into you refer section or in your freezer. Without the air flow their is no cooling in the refer section and you lose some cooling in the freezer. LG is not a easy brand to work on, you need an experienced technician to diagose and repair this, expecially if this is a control board issue, or you have a side by side unit with a bad heater. I do not recommend you try to repair this yourself. Good Luck Appliance Specialists

Dec 14, 2009 | LG Refrigerators

1 Answer

The freezer is 19deg and the lower food compartment only gets to 60deg


Model number is always valuable in order to be able to give you more accurate information.

Check rear wall of freezer by feel for frost. Heavy, even frost indicates likely problem in the defrost system. Defrost heater (most likely and in freezer behind rear wall), defrost thermostat (in freezer-must be checked at freezer temperature) or one of Defrost timer or Defrost control (Circuit board) generally located in Refrigerator compartment but may be inside rear of outer case. Defrost heater and defrost thermosts can be checked with an ohmmeter. Disconnect power to refrigerator, remove rear wall and disconnect at least one side of any component you are testing. If the heater and defrost thermostat test good for continuity then replace the defrost control.

Without repair refrigerator will work perfectly for about 7-10 days after being COMPLETELY defrosted, including behind freezer panel, until thick frost builds up again cutting off air flow to both compartments

Oct 03, 2009 | Whirlpool Refrigerators

1 Answer

MY Bosch Refrigerator (KGU3420GB) does not seem to chill the top fridge compartment but the freezer seems ok(-18). Any suggestions as to what might be the problem. I suspect the thermostate control. I have...


you will find either 1) there might be a ice blockage on the evaporator. This in turn can stop the evap.fan motor which is supposed to circulate the frost .Defrost with a hairdrier once panel is off or switch orr for at least 2 days to defrost. (insulation is very good. retry.or 2) sometimes you have an auger at top of fridge compartment. If it sticks, reduces ability to cool.Also switch off. use hairdrier to remove ice build up at auger outlet. retry. .

Sep 20, 2009 | Refrigerators

2 Answers

My GE fridge is not defrosting the coils in the back. What's up?


if u have frost build up in the freezer it will affect the temperature
and it needs to defrost
problems could be
defrost timer.
thermostat.
terminator.
heater s.
unit problems (unlikely) if even frost coating.

Jun 16, 2009 | GE (PSS26MSRSS) Side by Side Refrigerator

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