My fan only blows on the highest setting

I have a 98 Buick Century. Bought it 16 mos ago with 37K miles, now has just short of 70K . Yesterday I started it up to begin a 100 mile trip, and after a few minutes noticed the air wasnt blowing. The fan was set to the medium setting (I think there are 5 or 6 fan settings). I went thru all the settings, and none worked except the highest setting. My first thought was I blew a fuse, upon checking found two fuses for the fan. Neither were blown. Since I couldnt adjust the fan settings, I spent the drive flipping between a/c and vent. a/c till I got too cold, then vent till I started to sweat..lol.
Has anyone experienced this before? If so, shall I expect a minor inconvenience or a major headache getting it fixed? I live in Florida, so a/c is an absolute must!!

You need to go to your GM dealer and get a new resistor module. They have a redesigned one $36 that is not supossed to go bad as often. I went through 4 of the old ones. The new one is holding so far. Good Luck.

You need to go to your GM dealer and get a new resistor module. They have a redesigned one $36 that is not supossed to go bad as often. I went through 4 of the old ones. The new one is holding so far. Good Luck.

Wow! That was fast!! Thank you so much for the prompt reply!! Looks like I will be heading over to the dealer first thing tomorrow. I'll let you know how it turns out ;)

Thanks again,
JCW

wow the same thing has happened on my 98 cavalier and i live in florida too and it sucks fliping between vent and ac so please let me know if that fixed the problem!

wow the same thing has happened on my 98 cavalier and i live in florida too and it sucks fliping between vent and ac so please let me know if that fixed the problem!

Yes, I finally took my car in and they replaced the module and now everything is back to normal!!!