Elevator Forum

Both PC and SC originate at the center tap on the 24D transformer. Measure voltage from PC to the center tap. If the voltage is over .2v, run a second...

What type of elevator is this? (traction, hydraulic, roped hydraulic, etc.) What is the speed of the car? What kind of car? (passenger, freight, dumbw...

My vote is for Stannah

What state are you in?

What kind of Waupaca? Roped hydro, drum, etc.? Does it have a PLC? Do you have a picture of the controller? Serial number? Model?

What vintage is the equipment? Do you have prints? IBM relay or Potter-Brumfield? SU and SD initiate the sequence.

What kind of problem are you having? Do you have a picture of the controller? Its kind of rare to lose the motherboard. Not so rare to lose an input o...

Otis, old, used on manual horizontal slide doors. Don't remember the model number. Can be made up by pulling down on the contact bar with your finger.

Check the cores in the Struther-Dunn relays(10 and 11 I thik) on the back side of the controller. These control the Low speed compounding and High spe...

2LR switches are low leveling switches. They have nothing to do with stopping from high speed. You are not getting CS to tell the car to stop. Will it...

Door open limit signal??? Top floor door working makes it interesting. You don't use the open limit signal on manual.

What modules are you looking for? I have some that came out of a job we modernized.

Check wiring on carbon brushes in the CAC circuit. Does the car make a one floor run down? HG pulling in after the car takes off indicates that it see...

Check with drive manufacturer, maybe 27 ohms isnt the right value. You would never know it on the up unit, there is never an overhauling load.