Air con not working below 5c

[Richardc1983]

So having come from a Vauxhall Astra with manual air con I've now got the fiesta mk7 with climate control.

In my other car I left it on all year round as in winter it was great for keeping the inside of the car demisted and dry. In my fiesta though the air con doesn't operate even though the light is on when it gets cold outside so the inside steams up unless I turn the heating right up and then means my windows are fogged up and constantly using the rear/front heated windscreen.

My air con was all checked out at my last service a few weeks ago and was working well but it's now turned cold. The garage say ford fiestas don't run the compressor when it gets cold - the condenser fan cannot be heard either. Above 5c the compressor will come on below thst you have no demisting feature I should expect from climate control.

This is a total pain and makes year round use of the air con impossible. My previous car an Astra it would work all year round. We don't get dry air in this country until at freezing or below. It's very damp is the air. My car windows and side windows are forever misting up and constantly using the rear heater and front screen one.

Is there anyone on here that does car electrics.

Ford say they can't change the temp limitation but you can fit a resistor in line with the outdoor air temp sensor that will allow the air con to work by fooling the car thst it's warmer than it is. The air con already has an Evan sensor and pressure sensor that would cycle the compressor on/off if it got too cold.