Liebherr CBpes 4056 21c.9988736-03 not cooling enough

[Robertspiers]

I have recently changed the freezer air temperature sensor on my freezer compartment item 9590142 due to the freezer not attaining temperature. The freezer drops to approx -12, fridge stays at ambient temp (20c) alarm sounds and freezer temp starts to climb. I have run through the service mode but can find no electrical reason. I suspected the bistable valve awe co kmv432 however I can activate this through the service menu.

I now suspect the gas r600a level is too low. Have any of you experienced guys any suggestions.

Bought sensor from ukwhitegoods great service.

Rob

[admin]

Re: Liebherr CBpes 4056 21c.9988736-03 not cooling enough

Hi

The fault Is more likely to have been the evaporator sensor rather than the air sensor.

Bryan

[Robertspiers]

Re: Liebherr CBpes 4056 21c.9988736-03 not cooling enough

So you suspect the evaporator sensor 6942162 is breaking down at a specific temperature. There appear to be 4 sensors on this liebherr model all of which correlate according to the liebherr data.for sensor resistance and temperature.
I have now changed the evaporator sensor as suggested, lets see what happens.

I find the apparent vagueness of fault codes bemusing ( what is the point ) thanks for your useful suggestion. Incidentally I do work for liebherr all be it a different industry.

[Author]

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