My heater is blowing cold air regardless of what temp I set the controller at.

 

Any ideas?

 

Thankz

 

Roy

the valve in the matrix maybe stuck closed?

check ur water level and top up if needed , have u had any leaks of any sort?? if not might just be a air lock

heater matrix blocked solid.. mine did this and the matrix was fvcked!! speak to Baggins matey..

Could be heater matrix, but if coolant runs low for any reason thats where an air lock will go.

1st time I had that prob it was the water pump that had gone...usually you can smell antifreeze if there are any leaks. Another time I had a linkage come off close to the matrix and it made a faint noise when heater was switched on. Good look! this sh*t only happens in winter.