Heater blows cold

[MACCA.GLM]

Hi All

On a recent drive out a problem occurred with no heat from the heater on my sprint, It just blew cold air wether the valve was open or closed I am thinking airlock.Any thoughts as to rectify the problem would be greatly appreciated.

Regards

G

[tonyabacus]

Hello G

Sounds like an airlock, so as a first thought, try closing the heater valve, disconnect the pipe going to the heater matrix and remove the rad cap. Next fill the disconnected pipe with water and see if you can blow down the pipe to see if the water level in the radiator rises, if so try filling the pipe some more and blow again. Hopefully if it is an airlock you may be able to blow it through. Use a G clamp or similar across the pipe so water does not escape when you reconnect the pipe to heater valve.

Let us know how you get on so others can chip in with suggestions if the above does not solve the problem.
Tony

[MACCA.GLM]

Ok Thanks Tony

I will have a go at it

Regards

G