928mac

$140 + shipping . . . I don't do e-bay any more.
maybe Roger will have them on sale some day, I'm in no hurry for heat.

UKKid35

If you don't need OEM then an Intermotor dizzy cap is about $10

dr bob

The resistor pack is somewhat self-protecting with the integrated over-temp switch. What actually fails on them?

A local owner was suffering from Magic Blower Syndrome. Cured in a few minutes with a gentle tweak to the bimetal temp sensor strip. First made sure the evaporator wasn't clogged with crap of course. That's about the only "failure" I've been directly exposed to.

blown 87

It may be because of the humidity here, but all of the ones I have seen bad have had one or more of the resistor wires "open".

Cosmo Kramer

Porken posted a fix for this by removing one of the wires, I think it takes the resistor pack out of the equation but not sure.

https://rennlist.com/forums/928-foru...quick-fix.html

Eturbo924

I repaired mine. Take the cracked/split resistor wire and scrape away a bit of the ceramic cover. Then get some high temp solder (needs to be high temp or the connection will just fail again) and solder around the joint. Kind of like a cold solder joint... or using too much glue if you know what I mean. Just completly cover the intersection of the split.

Did this once with lower temp solder and it held for 3 months. Then the joint came apart.. solder melted. Then did it with high temp solder and 6 months and still going.

If you can use a wire clamp to hold them together and then solder to make the electrical connection... even better.

SQLGuy

Mine was bad due to the thermal switch contacts being oxidized. Resistors were all fine. I sanded the contacts with some 1000 grit, cleaned the whole thing with electric motor cleaner, and, it measured fine. Blower is now once again working on intermediate speeds. However, not surprisingly, I lost a screw to the abyss while putting the pack back in. Happened to have another suitable screw on hand, but I'd really like to know where the first one ended up.

Mrmerlin

the screw is in the bottom of the well a long magnet may find it or if you remove the bottom blower box you can reach your hand in the well and go fishing for your screw.
The other issue with the resistor pack is the motor once it gets dirty then the bearings dont spin as easily and then the motor draws more current and thus overheats the pack so clean and lube the blower motor as well and the resistor pack should live a happy life,

i used silver solder and a torch to fix a wire on one resistor pack