Pressure Diverter Switch - Haier GE CDT800P2N3S1 Technical Service Manual

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Pressure Diverter Switch

Operation
A diverter sensor is used to detect the position of
the diverter. A sensor contains two reed switches
used on the outside of the diverter. The sensor is
part of the DC harness.
The main control seeks the lower primary as the
first full circulation segment in the main wash,
followed by lower reverse wash, upper spray
system (which includes mid spray arm), bottle
wash and upper spray system. Silverware
wash is the last of the rotation before repeating
the full rotation until the main wash is complete.
Silverware wash and lower reverse are not used
in pre- or post-rinse segments of the cycle.
• Lower Primary
• Lower Reverse
• Mid and Upper Spray Systems
• Silverware Wash
Appearances may vary throughout this service
guide. Some models do not have all features
shown or may be different depending the model
number.
Pressure Diverter Sensor / Switch Diagnosing
Use a Clear Door (Part #: WX05X20002) to
diagnose an inoperative diverter. If a diverter is
not changing positions when the circulation motor
stops and starts, and the dishwasher has proper
water level with a normal spray pattern on the
zone that is working, the diverter is mechanically
inoperative and should be replaced.
A dishwasher that starts and stops every 3 to 5
seconds, may indicate low water level or a bad
sensor/switch. If the water changes wash zones
as viewed with the clear door, the sensor/switch,
connections or harness may be at fault.
A magnet can be placed on the end of the sensor/
switch to activate and test the switches. Each
switch will close as the magnet triggers, as
described below.
1. Access the sensor (see Sump Module
Removal under Sump Module in the Tub
and Structure section of this service guide).
2. Push in on the tab to release the sensor and
lift up to remove.
3. Access connector J806 on the main control.
4. Continuity can be checked across white/
orange (pin 17 and pin 18) and violet/yellow
(pin 19 and pin 20). An open circuit should be
read. To close each switch, place a magnet
at the end of the sensor to close the switch.
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