Fiesta Zetec 12.5 V Reg - Heater - ukjohnny

Evening all.

I have had a problem with the heater for some time.

When starting the engine and switching on blower for cool air, sometimes its ok. other times, start the engine, switch, on blower for cool air, and it blows hot, even though settings on cold. Rather annoying when in hot weather!

The only thing ive noticed is, when ignition turned over, all the dials go to max and then back to norm when running. Wondering if this is normal, or maybe something to do with it?

Regards Johnny