It was cold this morning so I thought I'd try out the auxiliary heater for the first time. I switched it on manually and it made healthy sounding noises like it was revving up ..... air was pumping through the vents etc. I checked up on it a few times, listening outside the car and could clearly hear the fan running away. It ran for 30 minutes or so.
I was rubbing my hands together as I left the house at the thought of getting into a nicely warmed up car. But it was cold. The temperature felt just like nothing had happened.
Any ideas ? Have I done something wrong or missed something ?
