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Saw Stop "No blade rotation code"

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Forum topic by DanielP posted 08-01-2015 09:08 PM 3017 views 0 times favorited 25 replies Add to Favorites Watch
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DanielP

489 posts in 1357 days


08-01-2015 09:08 PM

Well, I was trimming and cutting some pine with my SS PCS175 when the blade stops mid cut and the green light is flashing.

According to manual this usually means thermal overload, so push in reset button wait a few minutes and restart. Okay, overheating didn’t make sense because I wasn’t putting any strain on the saw. I checked the belts, took off the blade and cartridge, put cartridge back in with new blade and proper spacing.

Turn power switch on, flip up paddle, blade starts moving with loud hum then stops. After another 15 minutes or so I reset and try again and same thing, motor hums blade moves for a couple seconds then stops.

Several tries over the next hour with same results.

Any SS owners out there experience this problem? If so what was your solution? Thanks

-- --- Dan


25 replies so far

View Kazooman's profile

Kazooman

628 posts in 1417 days


#1 posted 08-01-2015 09:15 PM

Never had that happen. A few thoughts. Did you unplug the saw and let it sit for a bit and try again? Sometimes totally removing the power from printed circuit controlled devices makes them less stupid. While you have the plug out, have you tried turning the blade by hand (carefully!)? The original symptom and the subsequent humming and tripping really sounds like there is something bogging the motor down. If you find it hard to turn the blade by hand, you can remove the belts and try the arbor and motor separately to isolate the problem.

View TheFridge's profile

TheFridge

5765 posts in 951 days


#2 posted 08-01-2015 09:34 PM

Maybe a cap problem or start winding switch prob?

-- Shooting down the walls of heartache. Bang bang. I am. The warrior.

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DanielP

489 posts in 1357 days


#3 posted 08-01-2015 09:43 PM

I switched the plugs and cords around I have two dedicated 20 amp lines and tried both. I will unplug it for a half hour or so and see if that works. Thanks.

Switch problem might be over my pay grade.

-- --- Dan

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Kazooman

628 posts in 1417 days


#4 posted 08-01-2015 09:51 PM

Dan, do try rotating the blade with the saw unplugged. If it rotates freely, then I would bet Mike is on the right track. I thought about that for the new hum and trip symptom, but didn’t see how that would have tripped the saw in mid-cut. I suppose the start switch could have stayed energized and caused an eventual overload.

It sounds like you will need to give Sawstop a call.

I just realized that my advice sounds like a call to the cable company help desk. You know the routine: “Unplug your modem, wait ten seconds, and plug it back in. Did that fix the problem?”.

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DanielP

489 posts in 1357 days


#5 posted 08-01-2015 10:15 PM

The blade does rotate easily so guess it will be a call to SS on Monday. Thanks for your help.

-- --- Dan

View johnstoneb's profile

johnstoneb

2145 posts in 1637 days


#6 posted 08-01-2015 10:44 PM

According to the manual for my conractor saw. fast blinking green is coasting down, and a slower blinking green is bypass mode on.

-- Bruce, Boise, ID

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DanielP

489 posts in 1357 days


#7 posted 08-01-2015 11:03 PM

Green fast blink, Red Steady = No Blade Rotation page 45 in my PCS manual

-- --- Dan

View daddywoofdawg's profile

daddywoofdawg

1010 posts in 1040 days


#8 posted 08-02-2015 12:26 AM

Check for sawdust in or near any sensors,or moving parts, get in there and using your compressor blow every thing out.you said you where cutting pine that seems to clog more than most woods do.

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johnstoneb

2145 posts in 1637 days


#9 posted 08-02-2015 12:44 AM

Your initial post didn’t say anything about the red. By chance has the motor come unplugged from the contactor lead at the motor.
Never mind I see in initial post motor hums. Might try unplugging at the motor and plugging back in.

-- Bruce, Boise, ID

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DanielP

489 posts in 1357 days


#10 posted 08-02-2015 03:19 AM

The cords are wired directly into the motor so not much I can do there.

I blew out the inside and wiped dust off everything I could. Then I put on 8” box joint blades with appropriate brake and still got the hum and about a second of blade turn before it stopped.

-- --- Dan

View JeffP's profile

JeffP

573 posts in 856 days


#11 posted 08-02-2015 11:35 AM

Obviously with a saw stop, one is invited to think the problem is related to all of the additional electronics. I get that.

Still…at the end of the day the SS electronics is either sending 120V AC to the motor…or nothing at all.

If it is “humming”, then the motor is getting juice from the SS electronics. I think it very unlikely the SS electronics would have any means to supply something other than either 0V, or 120V AC to the motor. The breaking in an SS is done purely by the sacrificial aluminum brake thing, not with any sort of fancy electronic breaking (which would be way too slow).

This makes me think that the SS electronics can be “simplified out of the equation” here.

If this was some other brand of saw, and the blade can be easily spun by hand and the motor “hums” when juice is applied…I think we would all be telling him a winding has gone bad inside the motor….right?

-- Last week I finally got my $*i# together. Unfortunately, it was in my shop, so I will probably never find it again.

View OggieOglethorpe's profile

OggieOglethorpe

1213 posts in 1575 days


#12 posted 08-02-2015 01:16 PM

The hum sounds like a start cap or motor issue, just like on any other machine. I’ve had this happen to a DJ20 and two spa pumps.

If it’s not under warranty, Google “Electric Motor and your town name here”. Motor shops are everywhere, electric motors are almost a commodity. There’s a good chance someone local can repair or replace the motor at a very reasonable price.

FWIW, a local shop swapped me a new 2HP spa pump motor for my broken “core”, for 25% of the spa dealer’s replacement cost. Not 25% off, 75% less… ;^) The DJ20 needed an inexpensive capacitor replacement.

View DanielP's profile

DanielP

489 posts in 1357 days


#13 posted 08-02-2015 05:51 PM

I bought the saw around a month ago so warranty is in effect. One thing is that the blade would never “spin freely” by hand. It turns easily but not in a free wheeling spin. I wondered about that when I first got it, but figured it was just the way it was. Also, I noticed that the arbor would heat up pretty good, quite warm to the touch.

Looks like I got one that was maybe built Friday afternoon in Taiwan. (

-- --- Dan

View Fred Hargis's profile

Fred Hargis

3942 posts in 1958 days


#14 posted 08-02-2015 06:20 PM

That seems to be the way a SS works (the free wheeling blade part), it moves easily but you can’t spin it. So the blade not spinning freely doesn’t indicate a problem. But I wouldn’t do anything until you talk to SS, their CS is fantastic and you don’t want to do anything that might be a reason to void your warranty.

-- Our village hasn't lost it's idiot, he was elected to congress.

View OggieOglethorpe's profile

OggieOglethorpe

1213 posts in 1575 days


#15 posted 08-02-2015 10:45 PM

None of my belt driven saws, jointers, or even drill presses have spun freely by hand.

+1 on the warranty call. Let Customer Service be your guide, and let them fix it, as I’m sure they will.

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