Heating Blowing Cold`

25-11-2004

Situation is:

When the car is turned on and warms up. Heating set to blow hot works fine.

After 5 - 10 minutes without touching the controls the car starts to blow colder and colder until it blows cold.

If you turn bower off or heating down to cold for 5 minutes and then turn back on, it blows hot for a couple of minutes and then blows cold again.

If you turn on the demister it blows hot all the time on the windscreen.

I have a y Reg Fiat Brava.

26-11-2004

I'm suprised Tom hasn't answered this one...

I'm certainly no expert, but i would guess at you may have air in your system.

Your thermostat may also be sticking.

Daz

26-11-2004

Odd that the demister works.

What engine size and what does the temp guage on the dash do while the heater is being silly?

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