Heater control issue

[seattlestiva]

Howdy - Over the weekend, I pulled the heater control out just enough to replace the fan switch illumination bulb. After screwing back in place, I noticed that I was getting a fraction of the defrost air and almost no heat to the windshield (switched on high). So... I pulled the heater control out again. (I'd say maybe an inch or 2 from face).The fan and heat kick in like nobody's business.
Push back into place, again slows down. Cables need lubricating?

[jjk1224]

Does the blower motor physically slow down when you push the unit in place? Maybe a wire is being pinched or something causing loss of power to the blower. Your heater core will still put out heat even if the motor isnt turning the fan.