Range hood fan not working

thanks-from description and digi link

Hmm-stll kind of curious why a thermal fuse on a fan-also why if blowing the fuse but motor is still good-what purpose? Only thing that comes to top of head is if air passage restricted, causing fan to work harder-increasing line temp..fuse blows saving wiring and or motor. What'll they think of next.
Did a quick google-these vent thermal fuse failures seems to be quite common. Oddly no part numbers come up or are shown on the ventline site.

AnEv942 wrote:
Interesting-thermal fuse on a vent fan motor. Sounds like a probable solution. Never heard that-would have never guessed.
-curious for folks that found this thermal fuse-was this vent brand specific as no one mentioned- seen 3 camper brands? or requirement globally to meet Canadian exports? Anyone got a picture of the thermal fuse?

mark

Home range hoods have them. I replaced one once for my brother-in-law. A new motor/fan was something like $30 but the fuse was $1 from digikey.

AnEv942 wrote:
Interesting-thermal fuse on a vent fan motor. Sounds like a probable solution. Never heard that-would have never guessed.
-curious for folks that found this thermal fuse-was this vent brand specific as no one mentioned- seen 3 camper brands? or requirement globally to meet Canadian exports? Anyone got a picture of the thermal fuse?

mark

My vent is a Ventline. The thermal fuze looked like a diode, IIRC. A short tube, maybe 1/16" x 3/8" with a conical top.

Interesting-thermal fuse on a vent fan motor. Sounds like a probable solution. Never heard that-would have never guessed.
-curious for folks that found this thermal fuse-was this vent brand specific as no one mentioned- seen 3 camper brands? or requirement globally to meet Canadian exports? Anyone got a picture of the thermal fuse?

mark

wgriswold wrote:
The "capacitor" may have been a thermal fuse. My hood fan quit working and I discovered that the thermal fuse had blown. It looked like a capacitor.

The fan in my 2000 Bigfoot never worked from day one. The original owner never used the stove anyway, so he never tried fixing it. I took it apart and used a jumper to get past the thermal fuse and the motor ran as it should, so, I just cut the fuse out.

punomatic wrote:
We recently bought a used Adventurer camper, and the hood fan didn't work. I removed it and did some testing. There was a small capacitor in the circuit. I removed it, and the fan runs fine. Don't know for sure what the purpose of the capacitor was. I know some motors use capacitors to decrease the power draw when starting, but I'm not sure such a small motor needs that. Please don't tell me I've destroyed my entire electrical system!

The "capacitor" may have been a thermal fuse. My hood fan quit working and I discovered that the thermal fuse had blown. It looked like a capacitor. I called the maker and they told me it was required by regulation in Canada but not necessary. I removed it from the circuit and all was good.

I would find it odd that motor 'burnt' in an 07. If unable to find a separate fuse (unlikely-generally anything thats on a fused circuit from dist. panel wont have a separate fuse, generally) I'd jump a power wire to motor to test or meter its feed. Light works? At least our (correction) Ventline uses same 12v feed to power both light & fan.

punomatic: If purpose of capacitor unknown (line noise?) why not replace? Asking not to, struck the 12year old in me, the urge to tell you how close your entire electrical system is to catastrophic failure is all but overwhelming!

We recently bought a used Adventurer camper, and the hood fan didn't work. I removed it and did some testing. There was a small capacitor in the circuit. I removed it, and the fan runs fine. Don't know for sure what the purpose of the capacitor was. I know some motors use capacitors to decrease the power draw when starting, but I'm not sure such a small motor needs that. Please don't tell me I've destroyed my entire electrical system!

Probably stupid to ask, but did you jumper the switch? I had to replace mine.

Probably fused at the main DC panel.