Elevator Forum

Just in case the 480 volt one is 9900639 and the 240 volt one is 9900640

Transient Voltage Suppressor. They do short out sometimes. Do you need a part # ?

I did not know that. Thank you!

I've never seen an O'Thompson Hydro myself but I did find something in my library. I sent you a PM, hope it helps.

Hey thanks! That is quite close. I would still like to find a Duplex print but that will help tremendously. PM me if there is anything you need.

I think 30 is max, 60 would probably be excessive. The pressure switch opens as soon as the weight of the car is on the springs, the jacks don't botto...

Well JRT is the time of day, O29 is how long the valve stays picked to complete the re-sync (I max it out) and O30 is the days between timed re-syncs ...

Make sure the door software is V2R23, comm is plugged into Con3 not Con7 & JP5 is off. If you have 60 ohms then the termination resistors/ jumpers...

That is interesting. I could see something failing on in the starter run circuit but then work fine? It's certainly possible. I think I'm going to put...

I just had this happen on a 1230 with a Siemens softstart. Apparently security silenced the fire alarm at like 1 am and it wasn't til 6 am when they c...

More than half the problems I've had on 1000's have been power supply and Molex connector problems. I replace the terminals with gold plated Trifurcon...

DOZ is an output to from the CPU that pulls CDOZ low to fire the DOZ transistor on the function board. I believe the purpose is to pick SAFR with the ...

I've seen something similar on 2 QL operators caused by a brake in the resistor wire under the tap. Both times it was the same resistor, back right co...

This is basically NTS. It saw the terminal slowdown magnets before the slowdown set by P17. Definitely check slowdown magnets, make sure there are no ...