Re: freezer is working good and refrigerator not cooling...
I just dealt with the same problem in my fridge. Fan goes, back all frozen over with solid Ice.
I did not check the defroster, because I think the frost has been building up over time because sometimes the freezer door does not close well.
If I have the same problem again, I will check the defroster.
Take the back-panel off, use a blow dryer to defrost. It can take quite a while. My effort took over 20 minutes and lots of help with themanually taking the ice from within the coils (careful not to bend them)
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HI, sounds to me like ice build up in freezer and the clicking sound is fan blade hitting ice.If you can remove back panel inside freezer and if you see ice, you will need to clear ice which is also blocking vent that goes to frig to cool it.then i would recommend wrapping a heavy guage copper wire around heating element and putting other end down drain tube to prevent the ice build up.
Make sure the fan is running in the fzr the fridge side steals air from the fzr via a small duct to the fridge. If there is a lot of frost you may have an ice block on the cooling coils in the fzr usually behind a back panel. If you have an ice block your defrost timer,heating element, defrost limit one of these could be bad. Let me know if you find an ice block or a lot of frost. good luck
More than likely your freezer has a ice block in it it will have a lot of frost on the inside of the freezer. This ice block is usually caused by a bad timer or a bad heating element in the freezer. The timer kicks in a timed cycle to turn on the heating element and a hi heat limit keeps it from getting to hot just hot enough to melt any frost and ice. (thats how we have frost free fridges now)
There is something blocking the cold air from the freezer from reaching the refrigerator compartment. Since you mentioned frost in the freezer section, I can assume that the defrost circuit has failed. This circuit is made up of a defrost timer/module, heater and thermostat. I can't determine whether you have a defrost timer or module since you did not supply a model number.
What you need to do is to unplug the refrigerator, empty the freezer and remove the panel in the freezer section. This panel will give you access to the evaporator motor/fan, the evaporator coil and the defrost heater. Take a hair dryer and use that to melt the ice. Make sure that you monitor the drip pan regularly as you melt the ice since it will fill up with water and you will need to empty it regularly.
Once you get the coil clear of ice, you should see a heating element, it either lookes like a black wire that is attached to the evaporator coil, or it could look like a glass tube with a filament inside. If you have a meter you can determine whether the heating element is working. If the meter resistance setting show it as open, then you will need to replace the heating element. If the element is good, then you will need to check the defrost timer to see if it is turning the cam to periodically run the defrost mode.
If you do not have the ability to troubleshoot the defrost circuit, then call a service company. You can put the refrigerator back together and it should be able to cool the refrigerator compartment, until the service person and fix the problem.
The heating element, located behind the back plate of the freezer, is probably not working. A failed heating element leads to a build up of ice around the evaporator coils in the rear of the freezer. If the back plate of the freezer is removed (ONLY DO THIS WITH THE APPLIANCE UNPLUGGED FROM THE POWER SUPPLY) and there is a large build up of ice around the evaporator coils then it's a fairly good indication that the heating element is not working. The heating element comes on periodically to defrost/de-ice the evaporator coils. Heating element is often activated by a small timer switch which turns the heater on for a set time every 24 hrs or so. Heating element may be open circuit or timer switch may not be operating. Most likely to be open circuit heating element.
Older freezers have a mechanical timer that shuts the cooling unit off and activates a heating element to melt the ice that forms on the cooling coils next to the fan. Newer ones control it with a circuit board. It sounds like yours is not defrosting and the ice buildup has stopped the fan. Or the fan could be bad and without the airflow thru the cooling coils they are covered with ice.
You need to remove a cover inside the unit to get to the fan, cooling coils, and defroster heating element. There could also be a thermostat attached to the heating element that will need to be checked.
Unplug the unit, disconnect the heating element and check for continuity ( with an ohms tester ) , it should give some reading on the tester. You will need to talk to a repair shop to get the exact ohms it should read. If you have a friendly repair person, they will tell you how to check everything out.
you might have a defrost problem. Frost free models have a heating element that is controlled by a timer to automatically defrost ice, defrost timer turns on defrost heating element every 12 hours to melt ice in freezer and allow good air flow. You can test defrost element with an ohm meter(located inside freezer coils-will have two wires going to a plug connection), if OK replace defrost timer (located in various places depending on make and model
If freezer is icing up, you might have a defrost problem. Frost free models have a heating element that is controlled by a timer to automatically defrost ice, ie defrost timer turns on defrost heating element every 12 hours to melt ice in freezer and allow good air flow. You can test defrost element with an ohm meter(located inside freezer coils-will have two wires going to a plug connection), if OK replace defrost timer (located in various places depending on make and model
The problem is the defrost system located behind the freezer back panel.
The defrost system (AKA evap. system) is composed by an heating coil, a fan , and a defrost thermostat, and its function is avoiding ice formation on coil. When defrost system is defective the fridge wont cool down properly
In your fridge , either evaporator fan, thermostat or heating element is faulty, and the ice on coils is preventing the appliance from cooling down properly.