GE Monogram ZBD6400 Series Technical Service Manual page 18

6000 & 7000 Series DISHWASHERS
4.2.3 Identifying any faults that may have occurred:
If a fault has been detected by the Field Test Cycle, or by the
Factory Test Cycle, and hence the Fault Indication mode has
been automatically activated, then the WASH CYCLES and
HEAT OPTIONS LEDs will alternate on and off once every
second, to indicate that a fault has occurred.
continue until the first fault is found, (the LEDs will then
behave in the manner specified below, and the Factory/Field
test fault indication buzzer will be silenced if it was still
activated).
4.2.4 WASH CYCLES
knob position.
6600 6605
Normal Wash. Normal Wash.
Pots & Pans Heavy Duty.
China Crystal. Light Wash.
Rinse Only. Rinse Only.
Speed Wash. Speed Wash.
4.2.5 HEAT OPTIONS
knob position.
6600 6605
Normal Normal
Normal & Normal &
Heat Dry. Heat Dry.
Sanitize. Sanitize.
High Temp. & High Temp. &
Heat Dry. Heat Dry.
High Temp. High Temp.
To check if a particular fault has been recorded, rotate the
appropriate control knob to the corresponding Fault type to
be checked for. (Refer table below). If the selected fault type
has occurred, then the indicator LED above that knob will
flash, (at a rate of 0.5 second on, 0.5 second off), otherwise
the indicator LED will be off.
This will
Note: As the two knobs operate independently of each
other, two faults can be identified at the same time.
Fault type to check for:
Not Heating
Over Temperature
Not filling
Not draining
Overfill
Fault type to check for:
Open or short circuit
Door thermistor.
Open or short circuit
Door thermistor.
Turbidity Sensor
High Signal
No Signal &
Low Signal
Turbidity Temp Sensor
4.2.6 Exiting the Fault Indication mode:
To exit the fault indication mode, and clear any saved fault
codes from memory, press and hold down the START/
CANCEL button for 3 seconds. The control will then go into a
stand-by (off) state with all LEDs off. Note: The Average
Clean Water Turbidity (ACWT) value will also be cleared.
To exit the fault indication mode, without clearing the saved
fault codes: Remove power; or carry out the following se-
quence:
1.
so that both knobs are horizontal with their position indicators
pointing away from each other;
2.
Wash Cycles indicator LED will be
illuminated (fault detected) if:
< 9 °F in 15 minutes.
Greater than 180ºF, (but less than 210°F).
Not filled after selected fill time.
Not drained in 5 minutes.
Leak Detection switch closed or
2 nd level pressure switch activated.
Heat Options indicator LED will be
illuminated (fault detected) if:
Temperature sensed was below 32°F
or above 210°F.
Temperature sensed was below 32°F
or above 210°F.
Count was greater than 65,279 in 0.4 seconds
Counter did not receive pulses from sensor.
Count was less than 50 in 3 seconds.
Thermistor was shorted ,open or constant.
Align the WASH CYCLES and HEAT OPTIONS knobs
Press and hold the Start/Cancel button for 3 seconds.
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