Cheers mate it's a 11 DBA if that helps ?Just be careful of finding a new panel only to find out its your AV unit thats playing up. It controls the heater panel and one of the symptoms of faulty AV unit can be a heater panel which plays up.
It might be the panel like you suspect but wouldn't want you to buy one only to find it doesn't fix it. Maybe try to borrow one to try out first :thumbsup:
More likely to be an 09 car to have the AV unit playing up. if yours is a NAV car then less likely but not impossible.
It depends on whats meant by playing up. On a DBA car, its unlikely to be the AV unit. If it's just the knob which is playing up, its likely to be fixed with a squirt of switch cleaner. Don't go mad with it but it often helps. More common on the volume knob but I've seen it on the heater knob.
If its playing up like not blowing cold or you can't turn AC on or similar things like this then on the 09 models, it could be the AV unit.