I have had a recent problem with the 20A fuse # 6 blowing under normal fan load. It dosen't always do it when the A.C. is on and usually occurs after 30 mins. +/- of running with fan / blower at Med 1 or 2 setting. It has never done it under heater load. Should I look at the blower motor or it more likely related to something like the rear door lock which is on the same circuit?

I don't like to keep putting 20A fuses in a faulty system.

Any Ideas would be helpful.

Thanks Charlie K.

'88 2.6 standard stocker in the flatlands "I love this truck"