Power Soak 34774 PS-225 Service Manual - Manual (Page 20)

14
6.0 Universal Programming Module (UPM)
The Universal Programming Module is located on the inside of the control panel door.
To access the UPM, remove the two screws at the top of the control panel door and
swing the door down toward the floor.
The UPM has four indicator lights for troubleshooting:
POWER ON
Light is on when operating.
ERROR CODE
Flash sequence indicates error.
See section 5.7 for error codes.
LIQUID LEVEL W-L
Light is on when wash tank
low level sensor is activated.
LIQUID LEVEL W-H
Light is on when wash tank
high level sensor is activated.
The UPM is replaced by unplugging the cables and removing the mounting screw in
each corner of the mounting flange. The two white cable connectors have a hook that
keeps them secured to the socket. The back edge of the hook must be depressed to
allow the connector to be separated from the socket. The white connectors are
manufactured so that they only plug into the socket when oriented correctly.
The open door exposes high
voltage terminals in the enclosure.
DO NOT touch the electrical
terminals with hands or tools.
UPM
PROGRAMMING INTERFACE
UPM Removed from the
machine for clarity.
Press the back edge of the
hook to unplug the
connector from the socket
The flat ribbon connector is oriented for the correct connection
to the pins by keeping the ribbon untwisted. It is held in place
by a tight fit on the pins. The connector must be aligned so
that all the pins are inside the connector when it is installed.