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Question DetailsAsked on 11/18/2017

why does my upright freezer freeze on the bottom half and not the top half?

food on top half of upright freezer cold only and food on bottom half is frozen.

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1 Answer


Can be because the thermostat is not set low enough - should be typically 10 degrees in the freezer side. If not cold enough the colder air, which sinks to the bottom, will be below freezing but maybe not the upper air.

Also either you are not getting circulation in the freezer (i.e. the fan behind the plastic cover on the inside back is not working) so you are getting the coldest air stratifying at the bottom), or you are losing cold air like something holding the door from closing or a leaking door seal (run your hand around the door seal to feel for any cold air flow point).

Rarely, loss of coolant can cause this, but that is pretty rare with reefers.

Another common cause - the unit cannot produce the needed cooling because the evaporator coils or coil fan are crudded up with lint and hair so they are running hot - probably the most common reason. In the latter two cases, like if the door is leaking, the reefer compressor would also be running a lot longer and/or more frequently than normal.

More on these causes can be found in the following previous questions with answers:

Answered 3 years ago by LCD

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