Technical Aircon not working

Currently reading:
Technical Aircon not working

JohnBessacarr

New member
Joined
Aug 20, 2025
Messages
2
Points
1
Location
Swindon
Hi All,

Need some advice please. I recently purchased a 2014 Bessacarr motorhome, on a Ducato x250 chassis. The standard aircon is not working. The compressor doesn't want to engage. I've run my diag tool, but no issues reported. Checked the obvious areas, like the fuses, relays, belt on the compressor, etc... but no issues found. The strange thing is, when I turn ON the external lights, via the stalk, the aircon light in the switch also turns ON. So, it seems there is an electrical issue. The passenger side, side light is not working. Could it be linked? Any thoughts, suggestions would be appreciated, thanks.
 
Model
Fiat Ducato Bessacarr
Year
2014
Besides a possible electrical issue, it seems that the compressor will not engage if the refrigerant leaked away.

There is a Fiat service news about possible breaking/chafing of the refrigerant pipes near the radiator when they are incorrectly routed under/over each other, on the 2006-2014 models.
 
Ok, thank you. I will check those pipes. I did have a mobile aircon guy come and re-gas my aircon recently. He said the gas was already quite full, and confirmed no leaks.
 
It's probably not that then, but here's the relevant info for reference:

IMG_2333.jpeg
 
Back
Top