Front blower not working on 5

[mjharless]

Some junk got into the blower and made it vibrate. I took it out and cleaned it and now speed 5 does not work. All other speeds work and start immediately, but as soon as I turn it to 5 it goes off.

Any idea what I might have done when I took it out? I did not unplug the fan motor.

 

[ezdaar]

speed controller burnt contact at speed 5.

 

[mjharless]

Thanks for the suggestion - Solved it already though

Found that I had burnt up the 30a fuse for the blower. That circuit is apparently only used for high speed. Seems weird, but obviously I have no idea how these things work...

 

[southboundchicken]

If u still have issues with the fuse blowing consider replacing the fan relay those things are junk and fail all the time fortunately they arent too expensive anywhere from $25-$50

 

[ccapehartusarmyINF.(ret)]

yes mine does the same thing if i quicly turn it up to 5 it doesnt work i have to slowly turn to to 5