fan switch replacement, 87 Integra

My heater fan switch only works in "high," indicating replacement is necessary. How do I get to this little bugger behind the panel to replace it? Thanks in advance.

I have the same problem to except that all setting work except for low. I read somewhere that a resistor somwhere has blown, but I can't find reference to it anywhere. I'm hoping that it would be a cheap simple fix. Wondering if anyone has found a solution!

There's a blower motor resistor which is the usual culprit. Remove the glove box and it should be facing you, on top of a "shelf" on the blower motor. Fortunately, you should not have to remove any part of the function control panel, behind which is the fan switch, which would be a less likely cause of your problem.