Thanks for the question! - The AC clutch is drawing too much electrical power thereby blowing the fuse. The first clue that the AC clutch is defective is that the AC blower fan still blows air, yet the blowing air is not cool. The clutch, when turned on, locks the outer round plate to the inner round pulley which is being spun by the belt. So you visually look at the outer round plate to see if the clutch is actually spinning with the AC switch turned on. This part must be spinning for your AC compressor to operate and compress the Freon. This Buick was blowing the AC fuse repetitively. The reason I narrowed it down to the clutch is that, I am quite sure, that this fuse directly supplies current to the AC clutch (not to the blower fan or anything else). The other internals of the compressor are all mechanical, not electrical. The other common thing that would cause the AC to not blow cool is when the system has lost Freon, so the pressure switch disconnects the electrical power supply. This generally does not blow the fuse and the only cure for that defect is to find and repair source of the Freon leak and recharge the Freon system. A Freon leak problem most often calls for the services of an AC repair professional while an AC clutch replacement can often be done by those with good general mechanical repair skills.
How did you found out that the issue was with the clutch coil exactly?
I have my Buick and it keeps blowing up the 10 amp fuse 5 times already
Thanks for the question! - The AC clutch is drawing too much electrical power thereby blowing the fuse. The first clue that the AC clutch is defective is that the AC blower fan still blows air, yet the blowing air is not cool. The clutch, when turned on, locks the outer round plate to the inner round pulley which is being spun by the belt. So you visually look at the outer round plate to see if the clutch is actually spinning with the AC switch turned on. This part must be spinning for your AC compressor to operate and compress the Freon. This Buick was blowing the AC fuse repetitively. The reason I narrowed it down to the clutch is that, I am quite sure, that this fuse directly supplies current to the AC clutch (not to the blower fan or anything else). The other internals of the compressor are all mechanical, not electrical. The other common thing that would cause the AC to not blow cool is when the system has lost Freon, so the pressure switch disconnects the electrical power supply. This generally does not blow the fuse and the only cure for that defect is to find and repair source of the Freon leak and recharge the Freon system. A Freon leak problem most often calls for the services of an AC repair professional while an AC clutch replacement can often be done by those with good general mechanical repair skills.