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Forums13
Topics7,385
Posts40,939
Members10,040
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Most Online3,137
Apr 9th, 2026
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Joined: May 2015
Posts: 359
enthusiast
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enthusiast
Joined: May 2015
Posts: 359 |
Got an Otis LRV on the springs. Can’t run up. DR relay is picked. In ground jack. Sent relay and controller board off for repair. Got them back from repair, still nothing. Voltages and fuses are good. Any suggestions on what next?
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Joined: Nov 2021
Posts: 69
journeyman
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journeyman
Joined: Nov 2021
Posts: 69 |
If you ground the pm and umv contacts will the car move up? Need to check your 9vdc doesn't have any ac current on it
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Joined: May 2015
Posts: 359
enthusiast
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enthusiast
Joined: May 2015
Posts: 359 |
I was able to get it moving energizing the up coil and pushing in on the wye contactor but still won't run on automatic or inspection. I've also checked the limit switches and they are all good.
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Joined: May 2015
Posts: 359
enthusiast
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enthusiast
Joined: May 2015
Posts: 359 |
I was able to get it moving energizing the up coil and pushing in on the wye contactor but still won't run on automatic or inspection. I've also checked the limit switches and they are all good.
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Joined: May 2015
Posts: 359
enthusiast
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enthusiast
Joined: May 2015
Posts: 359 |
It needs the PM relay to fire for it to run, but no matter what I do, I can't get it fire
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Joined: Nov 2009
Posts: 468
Journeyman
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Journeyman
Joined: Nov 2009
Posts: 468 |
Check your DCL, it has to be open for car to run.
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Joined: May 2022
Posts: 39
newbie
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newbie
Joined: May 2022
Posts: 39 |
The controllers are shitty to work on. I don’t take them on unless the client is ready to rip it out and do a mod. No help to your situation besides the simple truth. Waste too much time and the clients money. The tanks can usually stay .
The better the effort, the better the result.
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Joined: Nov 2021
Posts: 69
journeyman
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journeyman
Joined: Nov 2021
Posts: 69 |
If you have good voltage on A1 of the PM coil and you ground A2 on PM and it'll pull in then you have a processor issue
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HW PM
by Chris, January 13
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