Factory Test Mode; Key Function Chart - GE APN08 Series Technical Service Manual

Factory Test Mode

The air conditioner has a factory mode function that allows the service technician to test various
functions.
Note: The factory test mode cannot be entered if the unit has shut down due to high water (see Float
Switch Operation under
test mode.
• To enter the factory test mode, unplug the unit, then plug it back in while simultaneously pressing
and holding the ON button.
• While the ON button is still pressed, the software checks the 2 thermistors for open/short conditions.
If the thermistor is open, the power supply board beeps. After this initial test, all the functions can
then be tested. (Overcool protection and compressor protection are disabled on the compressor.)
• To exit the factory test mode, unplug the unit.

Key Function Chart

Function Key -
Electronic Mode
On/Off
On/Off
Temperature Button
Fan Speed Button
Mode Button
Timer Button
Timer Button
Energy Saver On / Off
Energy Saver On / Off
Circulaire
Button activates
Sleep Mode
). Unplug the unit and drain the sump before entering factory
Circulation Pump
Status /
Display
Function
Appropriate symbol of Fan
On
or Cool and Temperature
Off Nothing displayed
Increase /
Decrease Cool Symbol and Desired
Desired Room Temperature
Temperature
Increase /
Fan Symbol or LED and
decrease
Desired Fan Speed (F1, F2
Desired Fan
& F3 or Low, Med & High)
Speed
Changes
unit function
Appropriate symbol of Fan
between Fan
or Cool or LED
Only and Cool
Mode
Timer symbol or LED On
On with time count (1 - 12 or 1
- 24 hrs.)
Off Nothing Displayed
Energy Saver Symbol (or
On
LED) and Temperature
Standard mode and function
Off
symbol
Engages
motorized May have a Circulaire
air discharge symbol or LED display
louvres
Sleep symbol (or LED)
displayed for 15 seconds
Sleep Mode
after key is depressed
Action
Unit powered up, compressor
On / fan On. When restarted,
the compressor will stay off for 3
minutes
Unit unpowered
Desired air temperature is set
& discharged from unit. Fan
and compressor cycle until set
temperature is received by temp
sensor.
Desired fan speed (RPM) is set &
fan motor speed changes
In Cool Mode, the unit fan and
compressor run and cool air is
discharged from unit. In Fan Mode,
the compressor is OFF and fan
runs at set speed to circulate
ambient temperature air in room.
Time Function is set.
N / A
In this mode the fan runs at
a reduced RPM when the
compressor shuts off. When the
compressor restarts, the fan RPMs
change back to the desired setting.
Standard Cool Cycle mode and
function
Motorized louvres begin auto swing
sequence
Unit runs for 8-hour cycle when
sleep key is pressed. One hour
after, cycle start temperature
increases a minimum 2°F to a
maximum of 4°F from the set point
for the duration of the cycle.
– 21 –
Notes
Temperature is not displayed in
Fan Mode.
In Fan Only mode, fan symbol
and speed will stay on display. In
Cool Mode, fan speed will briefl y
appear on display then display will
revert to temperature setting.
Time Function can be set so that
the unit can be made to run or
shut down with timer.