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Old 04-14-2018, 01:08 PM   #1
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Wiper Failure

Have a wiper that just quit. Doesnít appear to be a breaker or fuse, but will be sure motor is getting power. Is this failure most likely a motor if elect ok? Thinking of just swapping good motor to be sure. Thoughts?
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Old 04-14-2018, 01:28 PM   #2
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Your idea sounds good to me. Use a multimeter at the motor to be sure it is getting power (and that the ground side is still good). If so, try swapping motors and see. Good luck.
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Old 04-14-2018, 03:15 PM   #3
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Sevee another thought would be to run jumper between the 2 just to make sure this may be easier then swapping motors
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Old 04-14-2018, 09:50 PM   #4
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Quote:
Originally Posted by siestakey View Post
Sevee another thought would be to run jumper between the 2 just to make sure this may be easier then swapping motors
Great idea, will do.

Errr.... wait a minute. If I jumped from one motor to the other, what would that do? If the motor is bad, wouldn't help. And if the motor is not getting power, I can figure out that with a meter. What am I missing? thanks!
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Old 04-14-2018, 11:35 PM   #5
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Jump from the supply wires on the good side to the motor contacts on the bad side. If the motor is good and the circuit is bad, it will run. If not, it might be a bad motor.

A voltage check would probably accomplish the same thing.

Did you see any wiper smoke release from the motor? If it loses that smoke, it never runs again.
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Old 04-15-2018, 12:15 AM   #6
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Quote:
Originally Posted by FlyWright View Post
Jump from the supply wires on the good side to the motor contacts on the bad side. If the motor is good and the circuit is bad, it will run. If not, it might be a bad motor.

A voltage check would probably accomplish the same thing.

Did you see any wiper smoke release from the motor? If it loses that smoke, it never runs again.
What FW said
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Old 04-15-2018, 07:57 PM   #7
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Quote:
Originally Posted by FlyWright View Post
Jump from the supply wires on the good side to the motor contacts on the bad side. If the motor is good and the circuit is bad, it will run. If not, it might be a bad motor.

A voltage check would probably accomplish the same thing.

Did you see any wiper smoke release from the motor? If it loses that smoke, it never runs again.

Fly,

Smoke release? What's that?
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Old 04-15-2018, 08:09 PM   #8
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Greetings,
Mr. S. Lucas Replacement Smoke Kit
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Old 04-15-2018, 08:13 PM   #9
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Fly,

Smoke release? What's that?
All I know is that my wiper accidentally got switched on while my windshield cover was in place. Next thing I know, a puff of smoke came out a little hole in the wiper motor like steam from a locomotive...and that was all she wrote. That wiper motor never worked again.

Best I can figure, it must have been related to all the good smoke getting out.
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Old 04-15-2018, 08:37 PM   #10
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Had a shaft fail a few years ago...buried bow in a big wave, inundated windshield/wiper. Twisted off at the roll pin that holds the serrated drive cap on the shaft. FWIW
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Old 04-16-2018, 01:39 PM   #11
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Possibly worn brushes, you could try tapping the rear of the motor housing - with the switch in the ON position.
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Old 04-16-2018, 04:20 PM   #12
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Could also be a mechanical issue in the wiper's internals. An API wiper on my 390 quit, turned out to be a swage letting go in the linkage. Easy fix once the unit was out.
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Old 04-16-2018, 10:01 PM   #13
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Great advise... thanks!
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Old 04-17-2018, 12:06 AM   #14
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RTF - I don’t think you can use Lucas (The Prince of Darkness) smoke in a Chinese made wiper motor. If you use Chinese smoke, an hour later you want more.
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