Today when I went to start my car in the 16 degree weather. I noticced after I cycled my glow plugs and start the car the heater blower goes off. It blows on high and low when I am cycling the plugs but the second the car starts the blower cuts off. Does this rule out the possibility of a bad fuse and current?
Thanks,
A

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1987 300SDL
187,000 miles