– 21 –
Precise Fill Pressure Switch
The precise fi ll pressure switch is a 2-stage switch,
consisting of upper and lower level switches.
The lower level switch is used to control fi ll timing
through the control software for auto load sensing.
The upper level switch is not used. It is a safety
switch, which will tell the control to turn off the
water valves in case of a lower pressure switch
failure.
In case of a siphoning condition or leaking/plugged
pressure dome port/hose, the control will turn off
the water valves after 40 minutes.
The lower level pressure switch is a normally closed
contact and will open when there is approximately
4” of water depth in the wash basket. Continuity or
DC voltage can be read from pink to orange on the
main control or 12 to 21 on the pressure switch.
CONTROL CIRCUIT BOARD
HOT
COLD
WATER LEVEL
SWITCH -
LOWER LEVEL
WATER LEVEL
SWITCH -
UPPER LEVEL
TX
OX
CX
YR
BX
PX
WX
RB
VX
BX
WR
12
3
5
4
6
789
10
1
2
3
5
4
12
22
21
LID
SWITCH
(DC)
J5 J1
Cover/Lid Assembly
The cover/lid assembly is fastened at the front by
2 screws, on the sides by 4 metal catches, and at
the back by 3 locking tabs that protrude from the
bottom of the control panel. (See Control Panel.)
Note: Do not allow lid to swing open when cover/lid
assembly is removed. Damage may result.
To remove the cover/lid assembly:
Remove the control panel. (See 1. Control Panel.)
Disconnect the lid switch wire harness.2.
Pull the cover/lid toward you while lifting up the 4.
front edge to release the 4 side catches.
3. Remove the two 1/4-in. hex screws securing the
front of the cover/lid assembly to the cabinet.
Disconnect
Side Catch (1 of 4)
(Continued next page)
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