Haier GE CDT800P2N3S1 Technical Service Manual page 52

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Below are some of the new actions the control
can monitor and react to with different situations.
No Water Detected: In the event the internal
water level does not change, the cycle will be
canceled, and the user interface (UI) will display
the following:
• Models with Seven Segment Display (SSD)
Screens: H20 will be displayed on the SSD
screen.
• Models without Seven Segment Display
(SSD) Screens: Wash Temp LED will blink
continuously.
The consumer is directed to verify the water
supply line is connected properly, the supply line
valve is turned on, and restart the cycle.
Pressure Sensor Errors
In the event that the pressure sensor signal
is undetectable or irrational, the cycle will be
canceled and the user interface (UI) will display
the following:
• Models with Seven Segment Display
(SSD): PrS or PrF will be displayed.
• Models without Seven Segment Display
(SSD): Dry LED or Wash Temp+Dry LED's
will blink.
Verify pressure sensor harness, then replace
pressure sensor if needed.
Continuous Fill Error
In the event consecutive signals from the
pressure sensor detect high water level, the user
interface (UI) will display the following:
• Models with Seven Segment Display (SSD)
Screens: CFE will be displayed on the SSD
screen.
• Models without Seven Segment Display
(SSD) Screens: Cycle Indication LED's will
blink continuously.
The consumer is directed to turn water supply off
and call for service.
Testing the Pressure Sensor: To verify the
pressure sensor is receiving power, remove the
connector from the sensor and test for 5 VDC
between pin 2 (+) and pin 3 (-) on the sensor. To
verify the sensor is properly sending the water
level signal to the machine control, test for
frequency (0 to 5 VDC) between pin 7 (+) and
pin 12 (-) on the machine control connector J806,
as shown in the diagram. Use the chart on the
next page to determine if the output frequency
corresponds to the water level observed inside
the dishwasher.
NOTE: When flood trip point is reached (40.11 to
39.69 Hz), the drain pump will turn on.
Pressure Switch Removal
1. Remove power to the dishwasher.
2. Remove the toe kick.
3. Carefully pull the locking tab towards body
and turn the pressure switch counter-
clockwise (CCW) while pulling the switch out.
4. Remove the harness from the sensor.
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