Autotrail-Thetford Fridge

I have just had the Habitation service done and only thing he found was the fridge will not work on gas.  So when we thought we were putting the gas on for a few hours, we were not.  On electricity it works, just not gas.

He showed me an error no 9 on the readout which means that a sensor that detects heat (I think) is not working.

He did say that I will not be able to replace this sensor, they do not make them and I will not be able to find one anywhere.  The only option is a new fridge, which will have to wait until next year.

I do not know the model number, but it is a full height fridge freezer, the Thetford Manual says it covers 'N' models.

Any info/help will be appreciated.