Elevator Forum

I was a CET-s but let it drop

check the L2 voltage, other than that the drive module is probably bad

If chips are bad, Unitec doesn't supply, may have to get through local Otis office.

If this is as Jluff says, I'd check the brake, could need cleaning, adjusting, or could have crystalized any of these will let it slide.

depending on how many I may have some in stock

I believe Montgomery used to use CEMCO buttons

I have a 12-20-30 HOCLS,HITLS AC resistance controller plunger electric 2 stop collective control 3 phase 3 wire with 7300BB door operator without att...

had something similar, showed no faults, doors would stay open, not go to nudging. turned out being the detectors. simplex car front and rear open, en...

wd40 will dry plastic materials out, causing premature failure. For lubes I usualy use Fluid Film, lasts a lot longer. Although for GAL I usualy use a...

the reidential locks I've used it on gave no more troubles

I use it on beaks for residential and VPLs all the time, have used on a couple of older locks. Use very sparingly. The old shipper ropes contacts used...

I'm talking about switches on door bd it may work in 1 position but not the other, try wiggling the switch. may have bad connection or bad sitch

I've had multiple problems with the test switches, usualy it's more obvious a problem but twice they've acted the same as your describing.