My car only blows cold air from the heater - what's the problem?
I have a 2010 Vauxhall Astra that is blowing cold air only. I have checked the coolant levels and they're fine. What could be the problem?
Asked on 7 January 2019 by Colin Downie
Answered by
Alan Ross
Does the engine reach its normal working temperature after 10 minutes of driving? If not then suspect the thermostat. If it does then you need to check the two pipes that go through the bulk head (to the heater matrix). If both are cold then suspect the heater control valve. If one is hot and the other cold then suspect that the heater matrix might be blocked.
If both pipes are hot then would suspect that the heater flaps are either stuck or have a electrical fault.
If both pipes are hot then would suspect that the heater flaps are either stuck or have a electrical fault.
Tags:
heater
heater problems
Similar questions
I have a 2015 Ford B-MAX and water is coming into the driver's footwell. Our nearest Ford garage (which has been very good and I trust) has told me that it is something to do with the heater matrix - either...
The heater in my Renault Scenic has stopping working. I've checked the fuse, but it's working fine. Any suggestions?
My Mazda CX-5 heating matrix has stopped working, which is quite chilly in winter. I've seen various messages that Mazda are aware of this issue, I was just wondering if you had any advice as to possible...
Related models
.jpg?width=115&height=75&rmode=crop)
Good combination of ride quality, steering and safe handling. Strong yet economical 1.4 turbo engine. Frugal CDTi diesels. Neatly styled interior.
Elsewhere on 
