Hi Everyone,
I am having trouble with an older Montgomery Miprom. When you turn the power on.The elevator will run to the top floor and level in and no door operation but the pump keeps running. I am not dropping UA and Delta of course keeps the motor running. I have changed all the input and output boards. I have installed a new power supply and an interface board. I have also changed the software.The only board that hasn't been changed in the controller is the resistor board. The part number on this board is P-15833. Has anyone had a similar problem like this? Any and all comments are welcome. Thanks in advance.
