Power Soak 37179 PS-275 Service Manual - Manual (Page 22)

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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
5.5a 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.
LIQUID LEVEL S-L
Light is on when sanitizer tank
low level sensor is activated.
LIQUID LEVEL S-H
Light is on when sanitizer tank high level
sensor is activated
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 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.