Elevator Forum

If memory serves, we always used Tellus 38 Hydraulic fluid for all of our Hydro's,

You may be hooking the interlock. If it is always at the same floor, check the hoistway door lock for a little come and go while locked.

Make, please.

Check that the parameter jog adjust is at 100% in the CPU and the drive. Did you try reversing the A! and A2 wires, when you swapped B+ and B-?

on an original DC Drive this error was caused by the CPU telling the Drive everything is ok to run. The brake opens and the M switch pulls in, then if...

look at the M Switch and associated contacts.

Schindler bought Haughton. So I would start there.

Good find. Motion Adapter faults are rare.

usually caused by a bad power supply, or if it is a series B drive a bad switcher board.

HS is a hydro. The PI usually was a 7 segment digital, driven by the controller software. Miprom 21 is a Traction unit. It should have some floor outp...

which controller? Miproms had Bi logic inputs and outputs, 120AC inputs and outputs, 24VAC inputs and outputs, and they also used Vector fixtures in H...

I think this is a 2 speed AC unit, so compounding would not be a factor. Having no print is a problem. You might want to put a balance load on the car...

Usually, Dovers of that era had a bimetal sensor or some type of thermostat in the tank. when the oil got cold the thermostat would call for heat and ...

Who on earth inspected this at turnover? Embarrassed for the installer and the inspector.

Just a thought, did you look at the FCB board for the rear door?