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Dales-Electronic
Dales-Electronic, Home Appliance Technician
Category: Appliance
Satisfied Customers: 1417
Experience:  I am a Home Appliance / Refrigeration Technician of 25yrs+ with my own business and for multi-brand national companies.
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We have a Rangemaster sxs fridge freezer and the freezer temperature

Customer Question

we have a Rangemaster sxs fridge freezer and the freezer temperature has been fluctuating over the past few days from normal -18 to as high as -4. we have emptied it and turned it off in case too much ice had built up but hardly any dripped to the bottom. we have switched it back on but the temperature is still fluctuating. the top of the freezer is worse, food is defrosting while the middle and lower shelves are still keeping food frozen. any ideas please?
Submitted: 1 year ago.
Category: Appliance
Expert:  Dales-Electronic replied 1 year ago.
Hello My name is Ian ~ I am not on the site constantly so please be patient whilst waiting for responses to you queries ~ on the back of this appliance you have a valve that diverts the refrigerant from the freezer to the refrigerator as needed. The problem that you have is one of three things ~~ a. The motor (compressor) is failing ie not pumping enough refrigerant around to keep the freezer cold. b. the valve at the rear is not letting enough refrigerant in to the freezer area to keep it at -18C or you are short of refrigerant. All three of these problems will require a specialist refrigeration engineer with the necessary tools to look at the appliance. This is not a diy project as the engineer will have to break into the refrigerant circuit to check with gauges what the pressures are within the system, this will then indicate where the problem is. Picking one of the three, I would go for a shortage of refrigerant.
Customer: replied 1 year ago.

thanks Ian. I have also read on some posts / replies that the fan may well be something to check, is this the case with my issue?

Expert:  Dales-Electronic replied 1 year ago.
It is something to check but to be honest you should get about -10/12C without the fan working you could also check see if you model is fitted with a fan near the motor in the rear as this could cause the motor (compressor) to overheat. I still think you have a shortage of refrigerant as the cause of your problem. Ian
Customer: replied 1 year ago.

secondary digital thermometer with plug in thermocouple is currently showing -10 at the top of the freezer, no food stuffs in there just air?

fan maybe

Expert:  Dales-Electronic replied 1 year ago.
OK well the fan is activated by the door, so if you close the door up to the point where the light goes out you should hear the fan come on or hear a buzzing if it is jammed up with ice or seized.

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