CD220 CDI Heater problems

[hollyhocks]

Hi can anyone comment on my heater, it seems to have a mind of its own.
When we try to heat up or cool down the car it will only do so when it thinks fit, there seems to be quite a delay.
Thanks

 

[BlackC55]

The ojnly way of finding out what is happening it to get it plugged onto a Star.

 

[hollyhocks]

Thanks for that. Martin