Question about Frigidaire FRT15B3A Top Freezer Refrigerator

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Bottom fridge compartment is warm (60deg). Top freezer working good. Is cold control unit replaceable by customer?

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  • sunnymack Aug 06, 2010

    Thanks much for the advice. We tried the simplest fix first and had a neighbor unplug the machine for about 30 hours. As you correctly guessed, the return ducts were apparantly iced up and needed to melt out. As soon as it was plugged back in, all worked well. The unit is in a cabin about 100 miles away, off a 4-wheel road, so your help saved us a ton of aggrevation. This is my first time using the site, but you have won a supporter! I have already told my friends about it.

  • sunnymack Aug 06, 2010

    Thanks much for the advice. We tried the simplest fix first and had a neighbor unplug the machine for about 30 hours. As you correctly guessed, the return ducts were apparantly iced up and needed to melt out. As soon as it was plugged back in, all worked well. The unit is in a cabin about 100 miles away, off a 4-wheel road, so your help saved us a ton of aggrevation. This is my first time using the site, but you have won a supporter! I have already told my friends about it.

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Good day,
If the machine runs then it is not the cold control. You need to remove the rear panel in the freezer compartment and on that model usually means removing the vertical chute running up the center of the back panel and as well removing the fan motor.
I assume the fan motor is running. if not, that is your problem.
Before doing any of this make sure the light goes out when you close the door. You can see it go off just before the door closes.
That would produce enough heat to cause the fresh food section to run warm.Check that chute you removed to see if ice built up in it, as well as the the hole it discharges air into the fridge section.

Once you remove the rear panel, inspect the coil for ice build up.
If the coil is iced it will need to be defrosted.

If the coil is badly iced or frosted up, then you have an auto defrost problem. The defrost system is made up of 3 parts. The timer, which is located behind the cold control, and then back in the freezer compartment the main heater which runs along the bottom of the cooling coil or the defrost thermostat that is a small 1" disk which is clipped to the top of the coil on the right side although somwhat hidden behind some styrofoam.
In most cases it is either the timer or the defrost thermostat that has failed.
A good tutorial follows at the end of this post.

If all of the above proves to be O.K. then on Frigidaires, they have a tendency to ice up the return ducts. You can't see them, and you can't defrost them. The only way is to unplug the machine for 24 hours and let it melt out on it's own.

http://www.appliance411.com/faq/howdefrostworks.shtml

Posted on Aug 03, 2010

  • John Hall Aug 07, 2010

    Good day,

    I'm glad it's working, however, it unfortunetely should have been the last step, as I had outlined. If it repeats shortly, then there is a good chance it is the defrost system not working properly.

    But, if needed, just post back.

    jACK

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It may not be your cold colntrol. it is more likely the defrost terminator or the heating element (both located in the freezer section) or the defrost timer (located in the refrigerator section). you most likely have an ice buil-up on the evaporator coil that is preventing proper circulation of air accross the coil and into the refrigerator section.

Posted on Aug 03, 2010

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The fresh food compartment is cooled by air being blown from the freezer compartment into the fresh food compartment. Something is restricting that air flow which causes your fresh food compartment to stay warm.

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If the panel is restricted from moving (stuck closed, for example), the freezer will get VERY cold while the fresh food compartment will be warm.

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The fresh food compartment is cooled by air being blown from the freezer compartment into the fresh food compartment. Something is restricting that air flow which causes your fresh food compartment to stay warm.

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If the panel is restricted from moving (stuck closed, for example), the freezer will get VERY cold while the fresh food compartment will be warm.

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The fresh food compartment is cooled by air being blown from the freezer compartment into the fresh food compartment.

There is a panel, or door if you will, that separates the freezer and fresh food compartments. The freezer temp control determines how much cold air is allowed to escape into the fresh food compartment by opening or closing this panel.

In your case, the door must be stuck all the way open, allowing all the cold air to be diverted into the fresh food compartment. The compressor cycle is controlled by the thermostat in the fresh food compartment and thus 'short cycles' because the fresh food compartment acheives normal temperature while the freezer is relativel warm.

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If you look very close in the freezer compartment at the back, you'll notice an opening with a little door at the top of the freezer compartment. This opening extends up the inside of the back of the fridge to the top of the fridge area via a square plastic tube.

Basically what happens in my fridge is the family loads the freezer to high especially at the top/back. This restricts or closes off the opening for the cold air to the fridge portion of the appliance ....resulting in a warm fridge, but cold freezer. Just remove the articles at the back of the freezer to correct problem. (It will take a few hours for the cold air to cool the fridge down)

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