Have a 1994 Buick LaSabre that the AC blower fan will not shut off. Have to pull the AC fuse to disable fan.
Any help will be apprciated.

I assume that you have auto climate control, if so, you need to replace the blower control module. Cost about 100 bucks new at Advanced, or you may find one in a bone yard for half that.:grinyes:

what about a stuck relay?

Have a 1994 Buick LaSabre that the AC blower fan will not shut off. Have to pull the AC fuse to disable fan.
Any help will be apprciated.

Do you have an automatic dual control air conditioner with the temperature readout screen? If so, the blower control relay that's on top of the box under the hood close to the blower motor is probably the place to start checking. It's hidden under the maxifuse relay box, which can be moved up after taking out a couple of screws to make room to get at the blower control relay, which is really a circuit board that controls the blower.

I do have automatic dual control air conditioner with the temperature readout screen but can't find blower control relay/circuit board that controls the blower.

Found it!

Installed a new AC blower control module and that fixed it.
Thanks to all that replied.