CFX28 Freezing

SteveMc · Apr 3, 2022

I have a CFX28 from Dometic and its worked great for 2 seasons, recently is has decided to freeze everything. I set it to 5 degrees C and it will just freeze. Have turned on and off many times, tried resets, tried on mains and 12v, still the same.

Has anyone had this before and know of a fix, or point me in the direction of someone to service it maybe?

owen_h · Apr 3, 2022

My guess would be that the thermostat isn't turning off the compressor. Does it seem to run all the time? No idea how to fix but these people are near to you and gave me good advice when I was looking to get a coolbox many years ago:

Contact Us - Penguin Refrigeration

Refrigeration and air conditioning specialist. Based in Havant, Hampshire, we are easily accessible by car and train. We supply & service throughout the UK

penguinfrigo.co.uk

Perfectos · Apr 3, 2022

Does it have the available app to set the temp?

SteveMc · Apr 4, 2022

owen_h said:
My guess would be that the thermostat isn't turning off the compressor. Does it seem to run all the time? No idea how to fix but these people are near to you and gave me good advice when I was looking to get a coolbox many years ago:

Contact Us - Penguin Refrigeration

Refrigeration and air conditioning specialist. Based in Havant, Hampshire, we are easily accessible by car and train. We supply & service throughout the UK

penguinfrigo.co.uk

Yes it seems to run all the time, no matter what temp I set it to or how much/little is in the fridge. Thanks, will looks these guys up.

SteveMc · Apr 4, 2022

Perfectos said:
Does it have the available app to set the temp?

I see the temp via the front of the fridge, no app on this model. Have tried different temps all seem to set it to stun! (freezing).

Perfectos · Apr 5, 2022

This may help Explain what may need to be done to get the temp control working again

How to swap out the thermistor in your Dometic CFX

If you're having problems with temperature control, you probably have a bad thermistor. Apparently they are a weak link on Dometic fridges and have been for many years. Some last 10+ years; mine lasted about 4 before it crapped out. Luckily the CFX fridges require a lot less invasive...

expeditionportal.com

Sent from my iPhone using Tapatalk

SteveMc · Apr 6, 2022

Perfectos said:
This may help Explain what may need to be done to get the temp control working again

How to swap out the thermistor in your Dometic CFX

If you're having problems with temperature control, you probably have a bad thermistor. Apparently they are a weak link on Dometic fridges and have been for many years. Some last 10+ years; mine lasted about 4 before it crapped out. Luckily the CFX fridges require a lot less invasive...

expeditionportal.com

Sent from my iPhone using Tapatalk

Thanks. looks complex but might have to give it a go.