Elevator Forum

411MMS has an MLB3 board with a four character display that shows faults and car status and is in a two door cabinet 411M has no display, and is usall...

Is this controller a 411M or 411MMS? I agree on the position slip possibly being caused by an e-stop.I do not think that a clipped door lock will caus...

Make Unitec send you a new one. What prompted you to change the selector board?

Is the car stuck at a floor with a hall call lit? I would try the cop power supply and hall button interface board.

Red or brown ScotchBrite followed by contact cleaner.

Does the TC 3200 have this same shutdown feature? I have 3 of these piles that we are losing in a month and they have started acting up pretty bad. I ...

Look like rail lubers to me. I have seen them mounted on top of guide rails on 1920's jobs. I bet the flex has a small hose in it running down to the ...

ISO 460

I've seen our company sell tons of edges for more than the above mentioned price.

I'm guessing 1980's Panacombi

You need a dongle, but I've heard that the blue Chinese tool works for non-Otis mechanics just fine.

If your problem does not end up being electrical, I would tension hoist ropes and check for car sling to cab isolation.

I would look at the speed step circuit. What ever pulls in 2E and FE is where your problem lies. Relays may be up, but I would start pulling on shuts ...

Floor level CS lockup is from a stuck button contact. CS lockup during a run is from worn selector guides.

Went back through the locks on Friday and rode the car for a few hours. Top floor lock had an unusual wear pattern on the shorting bar, the wear patte...