Do you have a minute to answer an electric vehicle survey? Start the survey | No thanks

Why does the heater in my Triumph Spitfire blow cold air?

I have a problem with the heater on my Triumph Spitfire. When the heater is turned to 'hot', it starts to produce nice warm air into the cabin once the engine starts to warm up. However, once the engine is a full running temperature the heater then starts to blow cold air. What do you think the problem could be?

Asked on 12 December 2017 by Chris Bird

Answered by Keith Moody
Have you back-flushed the system? Checking that it's free of debris and functioning as well can be is a good place to start - along with checking for leaks on the hoses. It could be an intermittent fault from a sticky heater valve, but it's probably most likely to be an air lock in the system. Run the car up to temperature with the radiator cap off and the heater on full - that should get the air out.
Similar questions
My son bought his dream car, a Morris Traveller. He has no garage but can have it winter stored. His thoughts about this are the poor heater in the Moggy. As a result, he will need a "reliable" banger....
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
Sweet to drive, fun and good value for money, with brilliant club and specialist back-up