Good morning
We have a Liebherr sbs freezer service no. 9985242-02. Over the last few months the alarm has been sounding, the temperature has risen and has now got to the stage where the appliance will not go below zero. I have replaced both air and evaporator sensors and also established that the fan is working.
The alarm no longer goes off, the super-frost light goes out seconds after pressing, and the two – (dashes) are constantly on the display screen.
Can anyone please advise on what to replace or test next? I was thinking maybe a PCB problem but have been advised that they rarely go wrong and are often misdiagnosed.
Kind regards
David