On 19/11/2023 10:12, Andrew wrote:
>> The thermostat on ours had gone, and it took a week to get the
>> replacement. So, we couldn't just refreeze everything.
>>
>> Anyway, we made some people happy!
>>
>
> You could have bypassed the stat with a short length of
> cable, and to avoid running the motor 24/7 use one of those
> plug in 24 hour timers (*).
>
> 15 minutes on every hour should have
> been ok. After a week the timer microswitch will probably be
> knackered but they are cheap disposable items, much cheaper
> thatn the value of the freezer contents.
When our freezer failed, it failed "on": the motor was running
continuously because the contents were never getting down to the
temperature that turned the thermostat off.
I first noticed it because we have an energy-monitoring smart plug on
the freezer in the garage (*) and I was checking the graph to make sure
there was the normal pattern of on and off cycles during the day -
easier than going out to the garage with a thermometer. And I noticed an
abnormal pattern.
That was a broken weld in the coolant pipe, so the coolant had all
leaked out. Still under warranty so the freezer was replaced free of
charge. Took ages to get the company to come out to investigate, and the
first guy diagnosed a circuit board failure and ordered that, and when
another guy came to fit it, he said "No, it's a broken pipe - can't do
anything about it other than order you a replacement freezer and someone
(different) to collect the broken one." I did ask the first guy "Could
it be a loss of coolant and he assured me that it wasn't..."
The problem with some modern freezers is that the digital display only
shows the desired temperature, and not the actual temperature, so you
can't look at the display to see from outside whether the temp is
getting too high. And sod's law: the temp never got so warm that it
triggered the alarm on the freezer.
(*) Yes, it was a Beko freezer which is rated down to a few degrees
below zero - not one of these stupid freezers where you have to keep the
room warm in order for the freezer to get sufficiently cold.