intermittent blower speed issues point to current issues. You either have a dirty/failing commutator and or brush, OR a loose connection downstream of the switch. Check your fuse box as suggested...

drop by the house let's troubleshoot...bring the snowtires while you're at it.

__________________

85 190E 2.3(SOLD)
86 230E (-->300D) sold
87 300D (-->300TD) sold
68 250S w/ a 615 and manual tranny (RIP)
87 300TD (SOLD)
95 S280 "The KRAKEN" (Turbo 2.9 602 transplant) traded
86 190E 2.3... current project