Jet Jointer problem

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Forum topic by MOwood posted 04-09-2011 09:39 PM 1759 views 0 times favorited 6 replies Add to Favorites Watch
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36 posts in 3199 days

04-09-2011 09:39 PM

Topic tags/keywords: jointer problem troubleshooting

Well I got a really good deal on a used Jet JJ-6CS jointer that I found on Craigslist. I guess the old saying that a good thing is too good to be true still applies. Whenever I am edge jointing a piece of Oak the machine shuts off in the middle of the cut. I am thinking this might be the switch going bad or maybe it has a thermal overload of some sort? Anyone had this problem before or have any suggestions on how to fix it? I know this is a great machine and must surely just be a minor issue causing a major problem. Any ideas would be appreciated.



6 replies so far

View NBeener's profile


4808 posts in 2591 days

#1 posted 04-09-2011 09:44 PM

There’s a troubleshooting section in the manual that actually DOES do a good job of pointing out the likely issues.

I’d guess switch, but … let us know what you find out, huh ?

-- -- Neil

View syenefarmer's profile


429 posts in 2497 days

#2 posted 04-09-2011 09:47 PM

I too would guess your problem is with the switch.

View Lee Barker's profile

Lee Barker

2170 posts in 2267 days

#3 posted 04-10-2011 02:50 AM

After it shuts off, how do you get it back on?

The plug is a suspect as well as the switch and the associated connections.

Also the wire connections in the little j-box on the motor. Those have wirenuts often; that’s worth checking.

Or perhaps it has an oak allergy. Try other species that aren’t blooming right now. : )



-- " his brain, which is as dry as the remainder biscuit after a voyage, he hath strange places cramm'd with observation, the which he vents in mangled forms." --Shakespeare, "As You Like It"

View Camper's profile


232 posts in 2273 days

#4 posted 04-10-2011 04:42 AM

Does it shut-off when you are not applying any load to the motor e.g. not cutting something? If not, then I would suspect the motor rather than the switch. Does it happen more often during heavier vs. lighter cuts?

-- Tampa-FL

View MOwood's profile


36 posts in 3199 days

#5 posted 04-10-2011 05:26 AM

Thanks for all the responses. I checked my manual for a troubleshooting section but for some reason it didn’t have one, I also did a brief search online but came up empty. It only shuts off when under heavy load. To restart it I just hit the On switch again. I did make a trip up to Grizzly and asked for their suggestions, they thought it sounded like it could be the capacitor on the motor. I may start with replacing the capacitor, surely that will be cheaper than a switch. Lee it highly could be an oak allergy, those darn allergies seem to shut me down too.

View MOwood's profile


36 posts in 3199 days

#6 posted 04-12-2011 05:54 AM

Well the folks at Grizzly do know what they are talking about. I made it up there today and got a new capacitor and now it works great.

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