air con compressor does not engage

[associated]

hello i got a 2004 tdci connect the air con button lights up but can hear no clunk from the compressor engaging , anyone got any ideas ?

i been told it may be a pressure sensor anyone know a bit more on this ? cheers

[Altransit]

It could be the compressor itself too. You could try applying 12v to the compressor directly, using a powerprobe, and see if the clutch kicks in If it doesn't, then the compressor is at fault
Have you checked to see if it's fully gassed

[associated]

yes i did think it may be a compressor fault and no i have not checked if its gassed by my theory was if i could hear the clutch kicking in i would then get it gassed , or will the clutch not kick in if there is no gas ?

[Altransit]

If you give it direct power, then the clutch will operate, but I'm not sure if it will do it normally if there's no gas

My compressor on the Mk7 is the same, I have a new one waiting to be fitted, which I've already checked with the powerprobe

[associated]

i will check that in the week and see if i get power from the plug .

reading up i found there 2 a high and low switch , if one of these fail i guess that would stop compressor working ?

[Altransit]

It could be those, and it could also be the fan not engaging Have you checked the relay and fuses for the fan and compressor

I have 3 Fords with non-working aircon, all with different faults: One has a gas leak which I cant find, one has a faulty compressor clutch, and the other one I haven't managed to suss out yet

[associated]

perhaps there saying ford not meant to have air con

the fan works on rad and the blowers in cab work , il test the clutch when its not peeing down