Heater only blows cold

[Harry Hammer]

Got a 2004 1.8 Vectra C and the heater only blows cold.
Any ideas what fault could be? I suspect thermostat....
If so, is this an easy fix and any help you can offer (pictures/instruction)
Cheers

[barney490]

does the engine temp gauge read correctly when the engine is hot??? if it does, then its not the thermostat. More likely to be a sticking flap motor on the heater controls. Sometimes they can be freed up by gentle persuasion and some lube. I think theres a how 2 on the subject, but i do know you have to remove the glovebox (easy job) to gain access to the flap motor.

[leebutcher2.8]

one thing that worked for me turn the temp switch to full cold and leave for a few secs then turn to full hot quite fast, repeat a few times and hey presto mine has worked perfect since.

good luck

[Harry Hammer]

Thanks for this gents, tried the truning the heater control a few times and this morning I had hot air blowing. Cheers again.

[paulhb]

This worked a treat for me today many thanks for the steer