My upright frost free aeg freezer had it's bottom drawer frozen solid into one big block of ice , the rest of the compartments were ok . Took 2 days to defrost it and all now seems fine .....excepting that the motor never switches off .....running all the time .....as if the cycle is never ending ....is this a thermostat issue ????? please help , tks , Glen .

Craig Shelton

• 473 Answers

SOURCE: upright freezer

Three things could be the problem. Most likely would be the defrost thermostat which clips onto the evaporator behind the panel in the freezer. 2nd would be the timer or control board (will have one or the other). 3rd would be a bad defrost heater. Alot of times the def. therm. will show obvious sign of being bad by the cap on top popped open. You can check resistance on the heater. Any resistance at all on the heater means it is good. If it has a standard timer turn it clockwise until it clicks. This is putting it into defrost. If the heater comes on the timer is bad. If it has a control board you would unplug the unit then unplug the power supply to the board and jump line 1 to the wire going to the heater. While unplugged from the board and jumped, plug the freezer back in. If the heater comes on then the board is bad. If you are not sure how to test replace the def. thermostat, which is the cheapest part and see what happens. Note: When conducting the test for the timer or board the def. therm. must be freezing so don't defrost first! Hope this helps.

Posted on Oct 06, 2007

SOURCE: My woods upright freezer keeps

check your door seal, by closing the door on a strip of newspaper all round the seal. this fault is usually air getting inside the freezer, it rises to the top making thick ice or snow.

Posted on Feb 07, 2009

SOURCE: I have an older commercial upright Hobart freezer.

In most cases, an evap that freezes up is either an air flow problem or no defrost cycle. Older Hobarts have mechanical defrost time clocks. It could be locked up i.e., not running so no defrost cycle.
It could be coming out of defrost too early because the sensor that monitors the evap temp is not working properly.
The door could not be closing. If left cracked open, it will freeze up every time as unit never hits temp., keeps unit running. Warm air is seeping in and the moisture freezes on evap.
Lastly, the defrost heater(s) may not be working. Burned out, shorted, broken wire, etc.

Good luck and hope this helps.

Posted on Mar 29, 2009

Bruce McLeod

• 67 Answers

SOURCE: Upright freezer not cooling adequately

Go to there website and see if you can find your model. You can also contact them from there.
http://www.aeg-electrolux.co.uk/node145.asp?CategoryID=2595

Also get yourself a stand alone fridge and freezer thermometer - leave it in for an hour -that will establish what the temperature really is which will help in diagnosing the cause.

Also trying unplugging it for 15 minutes so the display board loses power - then plug it back in - sometimes that will reset it.

Posted on May 04, 2009

SOURCE: My upright freezer won't self defrost. Frost builds up right awa

Probably (90% of the times) the defrost timer is bad and has to be replaced.

Posted on Sep 19, 2009