Elevator Forum

when mechanical latching is involved, it could be a mechanical problem. This is why Otis used to put counters on their circuits, i mean after somethin...

those elevators where designed by ex-otis engineers and they are all pretty self explanatory. DR, Dcl, su, sd, ux, dx, fp, rfb, mo,cfc, rtt, P, ua, da...

I think they also glued the print out of the pmi modules on the inside of the controller door. You can count the plugs and pins and relate them to the...

And another thing, I'm sorry to read that you young guys haven't learned what us old farts found out a long time ago. Those yellow jacket relays are c...

One year later, I hope you found your problem, he-he. But I think as stated, UA and DA are respectively held in by SU and SD contacts I think. So, if ...

There is surprisingly little information on the web about this, I might say that we here in Local 8 lost a 63 year old Mechanic for Schindler Elevator...

5 volt power supply for logic, and two main logic boards, a relay board and logic board, these baby's are expensive. The relay board has the field wir...

when in this state, check ibm relay "fsl" on each unit. It it "fire service landing" relay and should be in when car is at the egress floor. I believe...