Hey guys,

I have a 55 plate, 2006 Vectra 1.9 CDTI Design, with semi-automatic air con and have a puzzle. Prior to starting up, the heater controls are set where i left them working fine the night before at,
air to footwell/windscreen,
temp at 22,
and blowers on 'A' automatic.
Startup and drive off, watch the temp gauge rise, but, cold air still comming into cabin. Now, if i turn the centre heat control all the way to 18 (cold) , then back to 22 i get heat!!!!!. It does this every day, so not a one off thing, Any other owners of Veccy's out there with semi-auto aircon got the same thing????