heating system question
#1
heating system question
My 81 300 SD has developed a glitch. The heater fan works fine on the heat and AC settings, but no fan when I switch to defrost. I'm guessing that there is a separate switch, since the defrost fan used to switch to high whenever I turned the defrost on, but I don't have a clue where to start looking. Any help would be great.
Thanks
Bob Hofferber
Vancouver WA
81 300 SD
Thanks
Bob Hofferber
Vancouver WA
81 300 SD
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