My climate control fan won't come on anymore. I just noticed it today, and I'm pretty sure it was working yesterday. I say pretty sure, because normally I just have it on 'auto', and it usually defaults to the lowest setting, so I don't really hear/feel it. Plus, with the semi-cold weather here in Florida, I haven't really needed much a/c, and only a little heat, which comes out whether the fan is on or not.

Anyway, can someone give me a list of things I should check to find the fault?

At first, I thought it might be the pushbutton circuitry, but I played around with it (normally you can get the fan to start up if the circuitry's at fault by pushing the buttons randomly, or whacking the panel right above the buttons), and I think I've ruled that out. Beyond that, is there a belt that drives the climate control fan? I'm hoping that there is one, and it just fell off. I'm guessing it's not the freon level, since the fan doesn't come on for heat either. That's all that's come to me so far.

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Gabriel
'91 350SD 162k
'83 300SD 210k - rear-ended and scrapped
'84 300SD 210k - totalled