Heating will not come on

[enner100]

I have a ford fiesta zetec. I recently put it in for its MOT and had a service done. It was not until yesterday that I tried to put the air conditioning on and it did not come on (2.5 weeks after service). It does not work with hot or cold air.

I have checked the fuse and that is ok. What else could I check?

 

[Burnerman]

Hasten ye down to the likes of Kwik Fit or Hi Q - they will regas your system for about £40, and if the gas comes straight back out again they don't charge you for it.
Takes about 45 minutes.
Incidentally, the air con cooling side only works with the temperature set to cold, and the fan on.
John

 

[Jimmyjaffa]

What do you mean? The fan does not work or the temp does not change?

 

[enner100]

Yes the fan/blower does not come on whether I have it set to blow hot or cold air.

 

[Burnerman]

Aah - slightly more information!
Probably the resistor pack on the fan motor - but I thought it would run on the maximum speed?
John

 

[enner100]

The model is a fiesta zetec s 1.25 engine and year 2000

I think it may be something to do with the blower motor. It does not work whether it is on 1, 2, 3, or 4. It also does matter whthere it is switched to blow hot or cold air.

I have rechecked all the fuses in the cental fuse box. I have also checked the fuses in the auxilary fuse box.

Could it be the air conditioning relay? Is there way to check if a relay is broken or would it be just best to replace it and see if that fixes things?

Could this have been done when it was serviced? The heating/blower was working before I got my car serviced and it's MOT done. Unfortunately for me the first time I tried to use the heating was 2.5 weeks after the service. So I feel a bit of a fool going back the garage and saying since you done the service and MOT the blower is not working.

 

[Burnerman]

I'm sure this is a fairly unusual one, but it looks like the blower motor has called it a day......it should work irrespective of the A/C being on or not.
Most blowers only use the resistor on the lower settings, but I really don't know on yours. Maybe a chat with the local service manager would shed some light.
John

 

[enner100]

Thanks