GE PROFILE PDE9900 - Manual (Page 30)

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Circulation Pump and Motor
The dishwasher has a new pump design that
includes a wax motor, magnet, and a steel ball used
for Single Rack Wash
TM . This pump must be replaced
with the same pump design (kit # WD26X10029).
The pump housing contains a molded channel to
direct the movement of the ball towards the venturi.
The plastic shell which encases the stainless steel
ball has ribs to prevent the ball from sticking in the
venturi.
The dishwasher must be removed from its
in stal la tion to gain access to the circulation pump
and motor. The circulation pump can be activated
using Service Mode. Refer to sche mat ic or strip
circuit for motor resistance value.
Before removing the circulation pump, remove the
water from the sump with a syringe.
It is important to remember that the motor does
not start immediately when the dishwasher cycle
has started (60 seconds after water begins to fi ll).
If the motor hums but will not start, make certain
the pump impeller is free from obstruction and the
motor shaft turns freely.
The terminals on the induction motor are labeled L1
and N. The motor is thermally protected (internally)
through the L1 side. The wiring connector is blue to
match the wire leading to the motor. It is designed to
fi t only one way on the terminals. Make certain the
connector is fully seated when installing.
The replacement motor pump assembly contains a
new ball.
Caution: Be sure the ball is in place and held by the
magnet before reassembling the unit.
Note: It is important that the hex-head motor-
hanger screw is tightened securely when reinstalling
the circulation pump.
Circulation Pump and Motor Strip Circuit
10 W
M
CIRCULATION
PUMP
J2-4
DK. BLUE WHITE
Wax Motor and Magnet
The wax motor and magnet (part # WD21X10235)
are an assembly and are held to the pump housing
by 2 Phillips screws. The wax motor operates on
120 VAC. It takes approximately 45 seconds for the
magnet to retract far enough to release the steel
ball when the wax motor is at room temperature.
The wax motor is energized for approximately 1
minute.
If the dishwasher door is opened during the Single
Rack Wash
TM , the ball will once again be held by the
magnet until the wax motor retracts the magnet
from the steel ball (approximately 45 seconds).
Wax Motor Strip Circuit
1200 - 2800 W
J2-2
GRAY WHITE
WAX MOTOR
(CIRCULATION PUMP)
Motor-Hanger Screw