Heater not working correctly

[Dave]

Hey,

Anyone any ideas why the heater in my car will only work if I go over 50mph?
Sometimes, when I turn the car on, it will work for about 5 minutes but after that it will only work if I go about 50mph..

Thanks
Dave

 

[Sven]

The heating part, or the fan ?

Members Site

 

[Dave]

What type of price are those to get fixed.
I am in Ireland, so it will be about 20% dearer here!

Thanks