Heater issues

Joined
Dec 30, 2012
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Hi everyone,
The heater worked perfectly before the summer but this morning turned up the temps both sides and the passenger side is hot but the drivers side is cold.
Can someone give me a bit of help please. Am I correct in assuming I need to drop the drivers side under dash panels to get to the flap? Any pictures would be great too thanks.
Mark.
 
Working fine now guess something was a bit stuck after months of being set on cold