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Fridgidaire freezer, model MFU12M2GW2, purchased in 2001. On coldest setting, top shelf gets cold (some frost on first row of coils) when first turned on, other shelves do not. Runs continuously. What is wrong? Is it worth repairing?

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4 Suggested Answers

  • 145 Answers

SOURCE: upright freezer not cooling

The model number would help but it sounds like a sealed system leak or restriction. If thats the case I would not suggest trying this yourself. The water should freeze overnight and the frost should keep going to all the shelfs that have coils in them.

Posted on Apr 17, 2008

jumptrout51
  • 3361 Answers

SOURCE: top & middle shelves COVERED with frost/ice, not middle

That is normal. The refrigerant runs through those shelves. They are the evaporator side of the unit.That is where the freezing effect comes from.
Check door seals for leaking air.
Keep door openings to a minimum.
Get in there and get out.
Those things will help prolong frost/ice buildup.

Posted on Mar 12, 2009

tborn6
  • 700 Answers

SOURCE: upright freeezer only gets to 32 degrees

have you checked the door seals on the freezer. sounds like its getting air into the compartment and causing the problem.

Posted on Mar 28, 2009

MNTECH
  • 1543 Answers

SOURCE: I HAVE AN UPRIGHT FREEZER THAT IS DEVELOPING FROST

Sounds like an air leak. Check the door gasket. If that is sealing well all the way around, try putting a peice of foil duct tape over the two small vents in the bottom of the door.

Posted on Sep 06, 2009

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2 Answers

Set at the coldest setting the top two shelves won't freeze water, the bottom two shelves will and the thermometer reads -5. Is this worth getting fixed? Cost?


Your coils are frosted over. Want let the fan push cold air around. I am having that issue right now. Turns out it is the control board is not telling the fridge to auto defrost or what to do and when to do it.

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If you hear the fan then it might be sticking on defrost mode.

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Hi,

On this unit the shelves are the cooling coils and carry the refrigerant (freon) through the system. They will attract the warm moist air by design, so if you have an air leak in the door or elsewhere it will tend to build up there first.

This being said you need to check something else first. Make sure the other shelves are cold. If they are frosted and cold like normal then you most likely have a door that is not closing all the way or a bad seal. If the lower shelves are not cold then you have a system problem, typically a refrigerant (freon) leak that is causing the top shelf to absorb most of the work and not enough refrigerant to flow to the bottom shelves.

I hope this helps

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The top shelf in my upright freezer ices up badly; but the rest of the freezer is great - no ice! What causes this and is there something I can put on that shelf to keep the ice from building up.


If this is the type of freezer where the shelves are the evaporator coils, the coolant goes through the shelves(tubing) and the formation of frost is normal and has to be manually defrosted.All the shelves should be as cold asd the top one. The fact that just one has any frost may indicate that it is low on freon. If this is the case you should notice that the freezer doesn't get cold enought.

Sep 02, 2009 | Freezers

1 Answer

Admiral upright freezer dripping water inside on top


Hello.
I can help. Once we notice anything different from before we start becoming more aware of small variations. Regarding things on the top shelf warmer than on the bottom, this is always true because, "warm air rises and cold air falls". If you want the top shelf colder turn the thermostat to the next colder setting, always a good idea in the Summer season anyway.

Even though your gasket looks good, a ten year old gasket is not as pliable as a new one resulting in the moisture problem you describe. I would begin by applying a thin coating of vaseline to the gasket once a week for a month. This little trick of the trade will often work. If it doesn't improve the situation do replace the gasket.

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Fan continuously running, non-stop


hi thanks for the question its normal for a frost free freezer to run a long time to keep a good cold temp i don't think you have a problem thanks the appliance doc

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Upright freezer not cooling


The model number would help but it sounds like a sealed system leak or restriction. If thats the case I would not suggest trying this yourself. The water should freeze overnight and the frost should keep going to all the shelfs that have coils in them.

Apr 16, 2008 | Freezers

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Freezer frost


An upright freezer that is not frost free will have the coils in the shelves (shelves are non-removeable) and that is where the frost will buildup.  If your model is like this then it will have to be defrosted periodically.  If your not sure then give me the entire model # from the sticker inside the freezer and I will look it up for you.

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