Elevator Forum

it is possible you have a bad up leveling unit. to check disconnect the umlu wire at the trminal on the relay board.

As a QEI Inspector I would like to give you my two cents worth. The biggest problem here is do you have the Building test the Smoke Sensors on Phase I...

One more thought to add to the pile. Make sure you aren't getting a mechanical bind when the doors are completely open. Maybe a Door Gibb or something...

don't know if this is relevant, had a similar problem on a Montgomery with a Baldor Drive. Had to change the number of Motor Windings from 4 to 6 in t...

just because the led is lit, does not mean it is good. swap it out with a known good board. One that is not from the elevator itself. you could have m...

It is a New York state of mind. fa geddaa bout it

you could have a bad backplane or one of the two chips on the backplane is bad. Are you sure the AESS input is good. AESP thinks it is low, check that...

you could have a bad backplane or one of the two chips on the backplane is bad. Are you sure the AESS input is good. AESP thinks it is low, check that...

AESP is an output, it is high for normal service. It goes low if AESS input goes goes low. You said you replaced the Power Supply Board. I would try a...

The biggest problem with PVC Liners and water is getting the Jack Plumb. The very best way and believe me I have pulled and replaced many a Jack, is t...

The product I have seen used was called Well Jell. But Danzeitz is correct union guard is the best way.

try making ESB high. Also ESS and AESS need to be high. If either one is low you will be on Phase One.

If this was a job with the old style cpu and program boards and then when ever you lost a cpu board, spares would send out an srb board. you would the...

It has been a while but it may be the original job install number. Usually it was pasted to the inside of the controller door. On a hydro it would sta...

A few more idea's. How are the velocity and position encoders mounted. a bad mount , especially on the velocity encoder will transfer vibrations. also...