Is f23 the fuse that's blowing? If so your back-up lights would not be working as well. A recent post indicated damage to trunk wiring might be possible cause.
With repect to heater was your car the subject of blower switch and resistor recalls and if so has work been done?
Blower by the way requires 2 fuses to be intact; one for control f23, and the other f37 for motor power.
98 Mystique LS v6 atx 110,000km
97 Contour LX v6 atx 125,000km
stock CD on LS, cass on LX
spoiler, tinted windows on LS only
4 wheel discs on LX only
All other available options on both
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