Troubleshooting - GE Profile Harmony WPGT9360 Technical Service Manual

Problem
LCD display does not come on.
Vertical lines on the LCD display when the washer is
turned on.
TOUCH TO SELECT WASH CYCLE
COLOR GARMENT
BY BY
SPECIAL STAIN
BY
FABRIC INSPECTOR
CYCLES
LCD screen too dark or too light as compared to LCD
dryer screen.
Replacement LCD screen too dark or too light. LCD
refresh rate is matched to inverter output at the
manufacturer.
Touch screen pad activates an adjacent function
incorrectly, i.e. - Pressing one pad activates a
function of another pad.
Checkerboard pattern in MY CYCLES screen.
Scuff marks on the plastic backsplash or cover
(Platinum models).
Motor will not rotate in Demo Mode (motor pulses).
"Frog" noise coming from inside the wash basket
when the washer is operating.
Water not shutting off at proper water level.

Troubleshooting

Possible Cause and Repair
The backlight connection on the main board may
not be secure. Check the connection to make sure it
is secure. The LCD backlight does not function below
30°F (-1.1°C). Test the inverter (see Inverter).
Re-seat LCD ribbon cable at connector CN6 on the
main board. If necessary, a piece of Scotch tape may
be added to the back of the ribbon. This additional
thickness will provide better contact for the ribbon
terminals.
LCD refresh rate can be changed in Factory Test
Mode. (See Contrast setting.)
Can occur when LCD screen is replaced. New LCD
screen must also be set to inverter output. Adjust
the refresh rate through the Factory Test Mode. (See
contrast setting.)
The LCD display ribbon connection on the main board
may not be secure. Check the connection to make
sure it is secure.
Electrostatic discharge on main board. Enter MY
CYCLES and press DELETE on the touch screen LCD,
this will clear the checkerboard pattern.
Can be removed by appliance polish, part no.
WR97X216 or a high quality of automotive paste wax.
On some models there is a software algorithm issue.
Add enough water to the tub so the pressure sensor
changes frequency.
Pull out the infusor and check to see if the basket bolts
are rubbing on the bottom of the infusor. If so, use a
fi le and smooth out the rub spots on the bottom of the
infusor.
The outer air chamber hole could be blocked due
to fl ashing that was left during production on some
models. Remove the pressure sensor hose and make
sure the fl ashing is gone and/or ream out the hole.
Run Pressure Sensor Test (see Pressure Sensor).
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