User Guide

Touchscreen has an unresponsive zone
Figure 2-3 Touchscreen has an unresponsive zone
N
N
Touchscreen
has an
unresponsive
zone
Is the area of the
touchscreen you are touching
greyed out (intentionally
deactivated)?
Open the
diagnostic function.
Perform the
red-grid touch test.
Replace the
control panel
(E-version).
Do not replace the
control panel.
Does the control
panel respond
to a touch?
Y
Is the same area
of the touchscreen
unresponsive on the
diagnostic screen?
Y
When you draw
your finger across the
screen do dots appear
only where your
touching?
When you draw
your finger across the
screen do dots appear
only where your
touching?
N
Do the following:
1) Plug the product into a differnent power
source (on a differnet circuit if possible).
2) Reflash the control-panel firmware, and then
perform the touch test again.
Y
Y
Y
N
N
Reflash the control-panel
firmware, and then perform
the touch test again.
ENWW
Troubleshooting process
129