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Diagnostics Test
Simultaneously press the LIGHT and OFF keys
for 3 seconds. The diagnostics screen will appear
in the LCD display.
Sample Diagnostics Screen
Displayed Information
• MODEL - Identified at power-up by the keytail
ID option.
• CODE VERSION - The date the code file was
sent to GEA for testing (MM-DD-YY).
• HUMIDITY SENSOR - The CUR (current),
DET (detection point), MIN (minimum), MAX
(maximum) humidity sensor data will update
continuously.
Error Message
F1 Convection - Open thermal sensor
F2 Convection - Shorted thermal sensor
F3 - Keypanel shorted for more than 60 seconds
F4 - Open humidity sensor
F5 - Shorted humidity sensor
F10 - Shorted touch panel
Note: Any “F” code will cause an error sound to
beep for 3 cycles. One cycle will sound 2
seconds on, 1 second off.
Sample “F” Code page
The CUR value is the present A/D value of the
sensor. DET is the value at the moment the
humidity detection point was reached. MIN is the
lowest humidity point measured during entire
feature’s run. MAX is the highest humidity value
measured during the feature’s run. These data
points are the dynamic measurements of the
sensor, not the calculated values.
Pressing the DONE key terminates the diagnostic
screen. The screen returns to the previous or
HOME screen. The diagnostic screen will timeout
and return to the previous screen after receiving
no input for 5 minutes.
Demonstration Mode
In demonstration mode, everything will operate on
the unit except the high voltage section.
To enter the demonstration mode, disconnect the
power for 30 seconds then reapply power.
Simultaneously press the HELP screen pad and
the BOOST button for 3 seconds. The word
DEMO will appear in the LCD display.
To exit the demonstration mode, disconnect the
power for 30 seconds then reapply power.