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#14898 - 08/25/15 02:06 AM Otis lrs  
Joined: Dec 2011
Posts: 259
beaupeep Offline
Mechanic
beaupeep  Offline
Mechanic

Joined: Dec 2011
Posts: 259
ontario
Have a lift that momentarily doesn't accept calls and sits with doors open. Everytime we show up car is running. Customer isn't resetting. Changed main i/o board, and tone generator. Happens on all floors. Anyone ever seen this?

#14899 - 08/25/15 02:28 AM Re: Otis lrs [Re: beaupeep]  
Joined: Mar 2015
Posts: 69
Magic smoke Offline
Shaking the Bush!!
Magic smoke  Offline
Shaking the Bush!!

Joined: Mar 2015
Posts: 69
On a Boat!
Could be the door open limit not making. Or door close limit not breaking.


When every circuit board is made. They put a little magic smoke inside.
#14900 - 08/25/15 11:32 AM Re: Otis lrs [Re: Magic smoke]  
Joined: Dec 2011
Posts: 259
beaupeep Offline
Mechanic
beaupeep  Offline
Mechanic

Joined: Dec 2011
Posts: 259
ontario
This would cause my calls not to latch?

#14902 - 08/25/15 02:39 PM Re: Otis lrs [Re: beaupeep]  
Joined: Jul 2013
Posts: 198
NewMech Offline
member
NewMech  Offline
member

Joined: Jul 2013
Posts: 198
Is the car stuck at a floor with a hall call lit? I would try the cop power supply and hall button interface board.

#14903 - 08/25/15 04:51 PM Re: Otis lrs [Re: NewMech]  
Joined: Mar 2014
Posts: 68
rac66 Offline
journeyman
rac66  Offline
journeyman

Joined: Mar 2014
Posts: 68
Florida, USA
Have you checked the photoeyes/door edge sensor? How about the door open button? Those Otis buttons are junk. The randomness leads me to think it could be one of these.

Last edited by rac66; 08/25/15 04:52 PM.
#14906 - 08/26/15 02:20 AM Re: Otis lrs [Re: rac66]  
Joined: Jan 2014
Posts: 736
Rolly Offline
old hand
Rolly  Offline
old hand

Joined: Jan 2014
Posts: 736
Check or replace the power supply in the COP. You may have ripple on the DC outputs. There are 2 Caps on the power supply. They do decay. The caps are a voltage 2X circuit to supply the 30vdc. If the Caps are bad or decayed, when the line voltage drops the DC reacts violently. At least try replacing the Caps.


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