You know the old saying . . . .

"A plumbers faucet drips, a mechanic's got oil stains all over the drive way, . . . . . "

Well, my AC's whacked and if I don't do something, I'm gonna have to call somebody.

My AC blower's intermittent in operation lately, and I've traced it to one of the fusible links in the circuit. This particular one has opened once in the past close to one of it's connections and at the time I was able to repair it by splicing just after the bad spot.

Long story short is it don't work like it otta.

I don't know the availability of replacements. I'm thinking I should be able to cut it out and put in a simple cartridge type of fuse.

Wouldn't this work?

 

Fusible links are there to make consumers take the truck in for professional service. The theory is that if a fusible link blows, something major (and beyond the capabilities of the consumer) has gone wrong.

If I read you right, you are saying that this link blew before, and you shortened it as a fix?

There is nothing "wrong" with replacing a fusible link with a fuse, but the point is that they should never blow. It sounds to me like the blower circuit is pulling excessive current, either due to a bad motor or bad connections. You ought to clear that up before you make a permanent fix for the fusible link.

 

Yeah, I'm on to that. When I place the blower switch to high, nothing blows like high should.

The blower switch presents with the multiple speeds OK, and I think all the dampers are opening and closing correctly. Gotta check again truthfully (got the book now).

But on high (recirculating) cooling, it just doesn't blow with the intensity I know it's done in the past. I'm thinking somethings up with the blower motor electrically (tight bearings making it over-amp most likely).

Thanks Dave.

 

Another option would be the small metal canister circuit breakers. They will trip to if needed, but will take a bit more amerage than a fuse. They also come with a manual reset if that's what you want

Den

 

Yeah, I gotta dig around in the book to find the ampacities for each, and then get the equivalent in the manually reset type breaker like you suggest.