Heya I have a candy fridge freezer for the last 4 years. Three days ago it started to defrost by itself. Im not sure if its a self defrost fridge freezer but I think it might be. My question is if it is a self defrost freezer how long before it starts to refrost and should I turn it off completely for a length of time. Also, it makes a buzzing noise every 20 seconds or so and then stops ???
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Re: Candy fridge freezer
It should come back after about 20 mins only and should cool back after about 10 mins.
i'm afraid the buzzing sound could be coming from your compressor which can not start. the over current relay is tripping off after 20 seconds to prevent the compressor from burning up. i suggest to unplug the ref, let it cool for 1 day, re plug it after a day and observe the compressor if would run.
if the buzzing sound is still there and the unit is no longer cooling, then the compressor is not running. check the relay of the compressor. it could just be the relay.
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The reason your fridge is freezing up is simply because there is a problem with the defrost unit of the refrigerator. The defrost thermostat simply could have gone bad and therefore is not getting the defrost heater to start work.
Have the defrost thermostat tested and replaced once found faulty.
Hope this was of help to you.
All the best
How to check
If the evaporator coils behind the back panel of the freezer
are icing up because of auto defrost failure that will stop the circulation of
cold air and eventually affect the freezer too.
check defrost timer, defrost heater, defrost thermostat. In
most newer models the timer has been replaced by an electronic control board.
If the heater and thermostat are ok it’ll be the control.
You can turn the defrost timer till it clicks
and everything shuts down. The heater should now come on. If it does, replace
the timer. If it doesn't, check the heater and defrost thermostat. Turn the
timer again till everything starts back up to end the defrost cycle.
Your evaporator coils frost up in normal use
and every eight hours or so the entire unit shuts down and the defrost heater
comes on to melt the frost. This cycle last about 20 minutes. The melted frost drips
into a drain pan and through a drain tube to the drain tray under the
freezer/refrigerator where it's evaporated by the condenser fan.
Candy frost free freezers have a 'self defrost' mechanism to remove excess ice build up. What happens is the ice gets packed around the heat exchanger in the back of the freezer and it can't self defrost. This is easy to fix but will require the fridge to be left switched off with the door open for a couple of days so all the ice can melt. Make sure you left the appliance off for as long as you can as if there is any ice left the problem will just come back.
Probably bad thermocouple. In the refrigerators I'm familiar with, there is a thermocouple thermostat in the freezer. There is no measuring of refrigerator temperature; it just gets a portion of the cold freezer air.
If the thermostat is bad, then ice cream should be rock hard too, for it never quits cooling except on defrost cycle, three times per day.
i don't have a diagram but im familiar with that problem its either a bad relay on the compressor a bad thermal over load in the relay box mounted on the compressor terminals or a bad compressor don't know where you live im in usa here you can get an after market relay with a start capacitor and if its not the compressor will fix the problem
i have candy fridge freezer which the thermostat is on high setting but not cold as it should be. There is build up of ice around thermostat at the back of fridge inside. What is needed to repair?. Any ideas? Cheers!