[zapcity1]

Originally Posted by Model flyer

Try moving heat from lo to hi a couple of times and blower controls to their limits to re-calibrate as servos can get out of sequence. Also is your battery OK as low voltage can cause all sorts of gremlins and strange problems .

Thanks for tip. Yes my battery voltage is lowish. I get the headlight failure warning flash up when starting, which I understand is due to the battery voltage. It doesn't affect starting etc, but I had planned to replace it at some point.