no heat from the heaters?

no heat comes from the heater when the fan is on,it did work then i put a new pollen filter in ,now it wont work. its a vauxhall astra 1998 16cc.
tim pond, November 2006


done
have to blrd the heater on its return pipe to the engine usually near the bulkhead in engine bay

two hoses about 15-18mm

kevin, January 2009
link Click here to see other fixes for Vauxhall.