Heater Control

[Jack91]

I need to replace the heater control knob. The knob itself turns however it is broken on the inside and I can not change the temp. from hot to cold. How do I get access to the dashboard. Honda Accord 1991

[kmcaprice14]

To replace the knob, you need not take off the dash. Just pull it straight out, and swap with a junkyard one. Its mounted on a half circle piece of plastic, and if the knob developes a crack, it will spin freely about this half circle. I actually reused mine by going to town on it with electrical tape wound very tightly around the broken knob. On mine however, the rack and pinion-esque contraption that opens and closes the hot air vent was stuck, so I did have to take off the front fascia of the dash. For this I used a Chilton's (Haynes) manual. It just tells you where all the stupid screws are. I also had a squeek, so I took the front of the dash off for two reasons.

[AccordRacing]

my low-med-max dial turns and clicks ok, but for some reason only turns on @ max .. .anyone have a clue? maybe not enough tension on the cable?

note: wen i turns on @ max .. it blows out at max.

[JimBlake]

What's a 'low-med-max dial'? If you're talking about the fan-speed switch, it sounds like your problem could be the fan control resistor pack. Check that to see if one of the resistors is burned out.

[foot]

Yea, when resistors fail you generally lose one maybe more functions but not necessarily all. I'd check the circuit for resistor failure.