heater control question

Ollie-B

Rockin' Shnit
Joined
Dec 30, 2012
Messages
322
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Location
Stanley, North East, UK
When i have my heaters set to my feet/down arrow the fan speed seems to change itsself as i drive, went for a 5 mile drive before for breakfast supplys :) and as i was driving i kept noticing the speed creeping up, so i knock it back down to 2 lines and again after a few miles its back up to 5 lines all on its own lol very strange as it dusnt do this on any other setting (that ive noticed)