jet dc1100 dust collector repair

[alan kopan]

My Jet dust collector will not start. has been sitting for about a month. When I turned it on it just hums. any ideas on what's wrong and how to fix it.

[Malcolm McLeod]

My Jet dust collector will not start. has been sitting for about a month. When I turned it on it just hums. any ideas on what's wrong and how to fix it.

Sounds like a start capacitor. Can you turn it on, then hit the impellor with a leaf blower? If it spools up, I'd bet it IS the cap.

[Bill Dufour]

Or the start switch is dusty and does not close all the way so the start cap is not in the circuit.
Bill D.

[Mike Monroe]

I have a Jet AFS-1000B Air Filter I've had in service for 10-15 years. A few years back I had to replace the control board on the unit. As I recall my research at the time indicated the control board had a design or manufacturing flaw. After so much time a circuit on the board would short out. The new control board wasn't cheap, but it was cheaper than purchasing a new unit. Not saying that's your issue, but if you pull the control board out, the burned out spot is easy to see.

[Michael Schuch]

I'm with Malcom, the start capacitor is the first thing that I would check... provided the impeller can be turned freely by hand.

[alan kopan]

thanks for the help. It has a 400 mf start capacitor. I looked at Jet parts and they want $128 for the capacitor, I can buy a 400 mf run cap for about $25 on amazon any reason that it should not work.

[Malcolm McLeod]

thanks for the help. It has a 400 mf start capacitor. I looked at Jet parts and they want $128 for the capacitor, I can buy a 400 mf run cap for about $25 on amazon any reason that it should not work.

Only issue I've ever had is with the physical size of the cap. Often the OEM will use a 'small' one to fit the space available; the after-market caps can be much larger - and often the seller will not state this physical size.

[Ron Selzer]

Only issue I've ever had is with the physical size of the cap. Often the OEM will use a 'small' one to fit the space available; the after-market caps can be much larger - and often the seller will not state this physical size.

I agree.
I would buy the cap off of Amazon and make it work
Ron

[alan kopan]

Thanks for all the advice. will order one from amazon. I'm kind of embarrassed, I have a degree in electronics but haven't used it for 49 years so I'm kind of out of the loop. thanks for the replies