Otis lrs

0 members (), 23 guests, and 2 robots.

Key: Admin, Global Mod, Mod

Forum Statistics

Forums13

Topics7,385

Posts40,939

Members10,040

Most Online3,137
Apr 9th, 2026

Print Thread

Otis lrs #14898 08/25/15 02:06 AM
Joined: Dec 2011 Posts: 317 ontario B beaupeep Mechanic
beaupeep Mechanic B Joined: Dec 2011 Posts: 317 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?

Re: Otis lrs beaupeep #14899 08/25/15 02:28 AM
Joined: Mar 2015 Posts: 69 On a Boat! Magic smoke Shaking the Bush!!
Magic smoke 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.

Re: Otis lrs Magic smoke #14900 08/25/15 11:32 AM
Joined: Dec 2011 Posts: 317 ontario B beaupeep Mechanic
beaupeep Mechanic B Joined: Dec 2011 Posts: 317 ontario	This would cause my calls not to latch?

Re: Otis lrs beaupeep #14902 08/25/15 02:39 PM
Joined: Jul 2013 Posts: 206 N NewMech enthusiast
NewMech enthusiast N Joined: Jul 2013 Posts: 206	Is the car stuck at a floor with a hall call lit? I would try the cop power supply and hall button interface board.

Re: Otis lrs NewMech #14903 08/25/15 04:51 PM
Joined: Mar 2014 Posts: 68 Florida, USA rac66 journeyman
rac66 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.

Re: Otis lrs rac66 #14906 08/26/15 02:20 AM
Joined: Jan 2014 Posts: 736 R Rolly old hand
Rolly old hand R 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.

Link Copied to Clipboard

Photo Gallery

service tool laptop
by dunkdadrunk, February 4

rip orona
by epic_ecodisc, January 7

what controller is this?!
by Alex_ELMAN, December 4

HW PM
by Chris, January 13

Drive sheave
by jkh, October 10

The best helper.
by Adrian, August 8

Home Forums General Discussion Technical Questions Otis lrs