Electronic Controls; Consumer Error Mode - Haier GE GDF510P M4 Series Service Manual

The main control board is located under the
dishwasher. It is supplied 120 VAC from the
consumer's home. Outputs include 120-volt AC
to the heating element, wash and drain motors.
The control also supplies 13.5 VDC to the fill
system, door switches, turbidity sensor (some
models), User Interface (UI) board and detergent
module in the door.
The main control has a CSM (Current Sense
Module) located on the control, if the CSM
detects a ground path the dishwasher will be non-
responsive.
CSM (Current Sense Module) Introduction
A CSM is a protective device that is located on
the main control of GEA Dishwashers. This
device is designed to trip if current leakage to
ground is above 20mA ± 5mA if detected. The
CSM functions similar to commercially available
GFCI's, if tripped the dishwasher will be non-
responsive.
The CSM may be reset by the consumer by
cycling the house electrical supply to the
dishwasher.
NOTE: The dishwasher MUST be grounded and
never operated without a ground connection.

Consumer Error Mode

To Enter Consumer Error Mode
With the dishwasher in Standby Mode (not
running a cycle), press and hold the Cycle Select
and Start buttons simultaneously for 5 seconds.
On entry into the Consumer Error Mode, the
control reports the door status for 10 seconds.
• All LED's are solidly illuminated, if the door is
detected as closed.
• All LED's are flashing, if the door is detected
as open.

Electronic Controls

After the door check, the control will enter a mode
to display any error codes that are currently
detected by the control.
LED
Start
Heated
Dry
Wash
Boost
Clean Turbidity Sensor
Lock
If any of the above LED's illuminate, it indicates
the fault condition is present. These fault
displays cannot be cleared manually; they will
be automatically cleared by the control when the
fault condition is no longer present.
Consumer Error Mode will time out after 5
minutes.
ANY KEY PRESSES OTHER THAN CYCLE
SELECT EXIT THIS MODE.
– 45 –
Error Type Error Causes
Communications User Interface
Failure control unable to
communicate with
machine control.
Wash Minimum wash
Temperature temperature of
Error 120°F was not
reached in 3 of the
past 5 wash cycles.
Thermistor Error Control detecting
short or open
circuit at thermistor.
Control detecting
Error short or open
circuit at turbidity
sensor. May also
occur on models
without turbidity
sensor.
Always Illuminates when
Illuminated Error Code Display
Mode is active.