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Magiccher chest freezer model MCCR5W
when " quick swith" is on temperature will reach -20 degrees. When switched to operate mode the temperature begins to rise and will not
hold and the compressor does not run. The temperature light does
not light up.
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My name is Peter. I am a retired field service refrigeration technician.
The ideal temperature range for a freezer is -2/+2 degrees F. This temperature range can very depending how full the freezer is. If your freezer is jam packed -5 degrees is good. If it is half full, +2 degrees F. is a good setting.
Too high of a setting such as -20 degree F. will cause freezer burn (bone dry your food).
Your compressor will kick in and cycle until it reaches the temperature setting. You can save on your electrical bills based on your evaluation of the necessary temperature setting.
This is true of all HVAC type systems. The condensor releases heat from the expansion of the coolant. As long as the temperature is lower than the exchanged heat then there is no impact to efficiency.
look in your onwers manuel and it should tell you what your temperature for the freezer should range from.if it was not giving to you when you bought the freezer then it should be behind the pannel down where the compresser is taped to the side.but as you know any thing below 32 degrees is freezing so 5 degrees is pretty cold.i dont under stand about the noise but if you think your freezer is not working right and if it is new then call place where you got it and tell them your concerns and then they should send a technician out
Is it a red light? If so it's not reaching temperature (the alarm is about -12c) If it's a yellow light, you've accidentally switched on "fast freeze". If it's a green light it's just the power supply light.
There are different models made for holding different products. Yours has a 1/3 hp compressor for above 20 degs. It may have 0 on the thermostat and may well pull down that far, but -20 would be out of it's reach. Where as it's sister model is made to freeze to below zero has a 3/4 hp compressor. Larger compressor for the lower temps.
This sounds like the temperature monitor is alarming because the temperature has not cooled down enough yet in your freezer. turn the monitor off until the freezer reaches proper temperature then you can turn it back on.
It depends on the control that your freezer utilizes.
If your temp control dial has the numbers 0-9 or 1-9, then you have whats commonly known as a coil temp sensor.
Unlike an air temp contol that measure the air temp inside the freezer and comes on and off with a 3-5° swing, the coil temp sensor runs a little bit different.
With a coil temp control or sensor, the temp control has a capillary tube and bulb that is inserted into the coil either at on of the ends down a guidetube or just into the center of the radiator type fins. This temp control measures the temperature of the coil, and not the temperature of the air inside the freezer. When the unit runs, the coils typically gets 20° colder than the air temp. And when the control satisfies (shuts off), it will not call for cooling again until the sensing bulb has reached the cut-in point which is typically well above design box temp.
So, to quickly answer your question, yes it is possible to have a 25° temp swing and not have anything really wrong with the unit. That is how its been designed to operate and that is how it will operate. Your only option (although not recommended) is to replace the coil temp sensor with and air temp control. That will give you more consistent temps.
Also, when taking temp of a freezer with a coil temp sensor, be sure to temp the product in the freezer and not the air temperature.
If all is ideal maybe -10 an occationally -15 and this is F considerable coolder than -20C. ALSO fyi a chest freezer will stay at or below these temps better than an upright and especially a self defrosting model. Because a chest freezer you dont loose all the cold air when you open the door. TYhey are not made in auto matic defrost as far as I know (never have seen one but then I havent been looking for one either. An up right freezer can be manual defrost or automatic. but the cold air falls ouit every time the door is opened.
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Hi dgh1,
The freezer should stay within 5 degrees of 0 while in operation. While in defrost the freezer may reach as high as 20 to 25 degrees. If any higher temperatures are reached your food will spoil as they are defrosted and refroze everyday. If you find that the temperature is allowing your food to defrost you may want to replace your defrost thermostat. This device is located on top of the evaperator coil inside the back of the freezer. It is made to turn the heater off when a temperature of 55 degrees is reached. One other possible problem could be your defrost timer is taking to long to restart the cooling cycle after defrosting. I hope this will help you and please send any other questions you may have, I am happy to help. and dont forget to rate me.
Mike Anderson
Anderson Appliance
(865)945-3808
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