Hi, Still can't get my heater to blow warm.
I have tried to bleed the system, changed the diverter valve and checked fuse number 1 in the glovebox which I think is the auxiliary heater but still no joy

This morning I also checked to see if the Aux heater warmed the car and that also seemed to be just blowing cold air. I also couldn't hear anything or anything obvious from the aux heater itself. However, I have never used it before so not sure how loud or obvious it would be if it was running

Can anyone think of anything else I can check or is it a trip to a specialist?

If you have no issues with the water flow then you should check that your blend door actuators are actually moving the blend doors. It is not uncommon for these to strip teeth and then fail to move. If you have access to a decent OBD tool then you will be able to live data the blend door position and then check that changes with the changing temperature dial position.

If you don't have access to an OBD tool then it'll need to be checked out by a suitably equipped garage.

Thanks for the help, I'm not sure if I have water flow issues or not to be honest but I think I am at the end of my capabilities now. So next questions

Is there anyone in the North West area (I'm near Warrington) who can read the codes (happy to pay)

or

Any recommendations for a reliable, trustworthy specialist in the North West