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Control Board
The control board is mounted in a housing attached to the inside of the control panel. The control board and
housing are replaced as an assembly. The washer includes 6 modes of operation that are determined by the
control board.
Mode Name
Description
Idle
No cycle is selected. All LEDs, VFD on front panel, load selections, and options are off.
The door is unlocked. The control board is ready to take input from user.
Standby
A cycle is selected with the appropriate load selections and options. LEDs and VFD on
the front panel are on. The door is unlocked. The control board is ready to take user
input to either modify cycle selections or start a selected cycle.
Run
The control board is executing the currently selected cycle. The door is locked.
Pause
The control is stopped by the user during the execution of a cycle. LEDs and VFD on the
front panel stay on. All loads are turned off. The door is unlocked. The control board is
ready to take user input to modify, resume, or cancel the cycle.
End of Cycle
A cycle is completed. LEDs and VFD on the front panel stay on, and all loads are turned
off. The door is unlocked. The control board remains in this mode until the door is opened
or after 2 hours have passed.
Fault
The control board detected a critical failure condition. Certain functions of the washer
will not operate. The VFD will show the fault code in the service test mode. The fault
code can only be removed in the service test mode. (See
Service Test Mode
.)
Operation of the control board can be checked by using the service test mode. (See
Service Test Mode
.)
Speci
fi
c failures associated with the control board can initiate error codes E1, E2, E10, and E26. (See
Error
Codes
.)
When replacing the control board, wire the model select plug according to the correct model diagram shown
below.
(Continued Next Page)
To determine if correct model select plug is assembled:
1. PFWS4400, 4405: Turn unit on. Turn knob to
Basket Clean
.
Display should disploy basket clean instructions.
2. PFWS4600, 4605: Turn unit on. Turn knob to
Steam Refresh
.
Display should display steam refresh instructions.
Model Select Plug
PFWH4400, 4405
PFWS4600, 4605
PFWS4400, 4405
PFWS4600, 4605
Summary of Contents for PFWS4400L0
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Page 22: ... 22 Dispenser Drawer Tub Drive Pulley Belt Motor Rear View Front View Con t ...
Page 65: ... 65 Schematics Model 4600 with Steam ...
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