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Return air duct frozen over - Refrigerators

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Check to see if the evap fan is running inside freezer.
clean cond coil under back of fridge.
check if evap coil inside freezer is froze over, if fan is running and cond coil is clean, it may need a defrost timer.

Posted on Sep 24, 2009

  • jason king
    jason king Sep 24, 2009

    also check the heating element for proper Resistance.

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TOP AND BOTTOM NO AIR FLOW UP TO FRIDGE FREEZER IS FINE EVAP FAN IS WORKING DAMPER IS OPEN


all i can think of is the door was left open and the air ducts are frozen,look in the freezer section,do you see any frozen water droplets on the walls.ceiling or on the food packages?mostly happens on bottom mount fridges,the warm air gets blown up the air ducts and along with the cold air the ducts freeze up and no air will blow into the fridge section,you can unplug the machine and blow into the holes in the back wall where the evap fan is,if you start to see water dripping down through the air holes keep melting it out until no more water is dripping,then turn it on and feel inside where the damper is and you should feel cold air,this could take a while depending on how much ice is in the ducts.

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1 Answer

Everything response when the ac is on but no air comes thru vents


your blower motor,capisitor for the blower motor or a blower wire is bad or your coil is frozen and not alowing air to pass by it,you might have a crushed return duct not alowing any air in which wont let any out.it could be a number of different things.

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1 Answer

Our frezzer is working fine but the fridge isnt


the return air ducts are frozen, not allowing cool air up to the fridge
unplug unit overnight and let defrost,you can speed up the defrost time by using a blowdryer in the freezer compartment

Jan 16, 2010 | Samsung Refrigerators

1 Answer

Not cooling proberly. Unpluged unit for 5


return air ducts are frozen and need to be defrosted. unplug unit and with doors open , introduce warm air from a blowdryer for a couple of hours , the ducts that are frozen are behind the rear panel on the rear wall of the freezer

Oct 28, 2009 | KitchenAid Superba Architect KSCS25INSS...

2 Answers

No air is coming through air ducts


filter could be stopped up on return air or coil frozen due to low charge

May 16, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Need the cubic inches for the return air duct


For proper minimum opening you need to do duct calculation. This is not a typical math equation for the typical homeowner. And unfortunately alot of contractors do not take the time to calculate this.
If you insist on doing this yourself...... I would recommend the largest opening that a common filter will fit. probably 20" by 25". Going to big on a return air will never hurt. But going to small will.
20" x 25" will work safely 95% of the time. But... If you are running airconditioning that is 5 tons in size, you will need the design a return air system that will feed from BOTH sides of the furnace.

If you are just sizing the trunk line you should use a ductulator to calculate the minimum size. A good rule of thumb would be to size the "return air" trunk 1 - 1 1/2 times the size of the supply trunk line.

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1 Answer

Jenair model JCD2389DEW not cooling on fridge side


The air ducts may have frozen over the air blows in through the louveres by the thermostats. There is also a return air duct on the side of the refrig behind the crisper drawers. Both need to be clear for air to be circulated proper

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1 Answer

Freezer working fine, but Refrigerator no longer cooling


Sounds like there's an airflow problem to the top section. Things that cause no cold air to the top fridge section are... frozen up coils completely blocking most of air flow (defrost cycle not working), evap fan not working to blow air up to fridge, air control dampers in fridge closed or not working properly, or frozen air ducts supply/return. Pull the whole drawer out the bottom and take the rear inside back off to expose the coils. If they are frozen solid the defrost t-stat or defrost timer could be bad (heat element not usually bad). If there is a nice white frost all over evenly then that's OK. Check that the fan is running when the compressor is running to blow the air up and that there are no blocked air ducts, etc. If all that is good, check if you can feel good air flow from the upper vents with the lower door closed (that shows there is no blockage and the fan is running).

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1 Answer

Fridg not cold


Ahhhh, the classic symptom of a frozen coil/air return duct. You'll have to pull the back panel off the freezer wall to view the coils. The are likely a block of ice causing the air channels on the sides to be frozen, thus blocking air flow. You may need a defrost t-stat or a defrost timer. If the defrost cycle isn't working then you will get a freeze up eventually. The only other reason is if the freezer door was left open slightly overnight letting in moist air. Let us know what you find.

Dec 27, 2006 | Amana Easy Reach AFD2535DE Bottom Freezer...

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