Service Mode - GE AZ45E07DA Series Technical Service Manual

Service Mode

While the Zoneline is in "OFF" mode, press and hold
the "+" and "-" buttons simultaneously with the AUX
SET button to enter into this mode.
All LED's light up to indicate entery into this mode.
These modes can be entered even if the Zoneline is
in Class 2 mode.
Service Mode times out after 15 minutes of
inactivity.
Minimum run times are not applicable in this mode.
Compressor delay start times in service mode will
be 10 minutes.
NOTE: Fault codes are stored in this mode but do
not intervene with the Zoneline operation.
Press the Mode button to cycle through the run
modes.
Press +/- to toggle on/o .
AZ4500
1. "CL": Cooling. Compressor, Indoor Fan, reversing
valve, and Outdoor fan are energized. Fan speed
is high.
2. "EH": Electric heat. Electric heater (all relays) and
Indoor Fan are energized. Fan speed is high.
3. "IF": Indoor Fan only. Indoor fan is energized. Fan
speed is high.
4. "OF": Outdoor Fan only. Outdoor fan is energized.
Fan speed is high.
5. "S1": Indoor Ambient Air Sensor - temperature
will be displayed between -9°F and 99°F on
screen after Zoneline has been in this mode for
10 seconds. (If no sensors is detected, "--" will be
displayed).
6. "S2": Indoor Coil Sensor - temperature will be
displayed between -9°F and 99°F on screen after
Zoneline has been in this mode for 10 seconds.
7. "UI": UI Test - Run the LED test sequence.
8. "So": Software version is displayed.
Service Mode
AZ6500
1. "CL": Cooling. Compressor, Indoor Fan, reversing
valve, and Outdoor fan are energized. Fan
speed is high.
2. "HP": Heat Pump. Compressor, Indoor Fan, and
Outdoor fan are energized, reversing valve is not
energized. Fan speed is high.
3. "EH": Electric Heat. Electric heater (all relays) and
Indoor Fan are energized. Fan speed is high.
4. "IF": Indoor Fan only. Indoor fan is energized. Fan
speed is high.
5. "OF": Outdoor Fan only. Outdoor Fan is energized.
Fan speed is high.
6. "IC": ICR Pump - Pump only is activated. If
equipped.
7. "dE": Defrost - Reverse cycle defrost (cooling
without any fans) is activated to melt ice on
outdoor coil.
8. "S1": Indoor Ambient Air Sensor - temperature
will be displayed between -9°F and 99°F on
screen after Zoneline has been in this mode for
10 seconds. (If no sensor is detected, "--" will be
displayed).
9. "S2": Indoor Coil Sensor - temperature will be
displayed between -9°F and 99°F on screen after
Zoneline has been in this mode for 10 seconds.
10. "S3": Outdoor Air Sensor - temperature will be
displayed between -9°F and 99°F on screen after
Zoneline has been in this mode for 10 seconds.
11. "S4": Outdoor Coil Sensor - temperature will be
displayed between -9°F and 99°F on screen after
Zoneline has been in this mode for 10 seconds.
12. "Ui": UI test - Run the LED test sequence.
13. "So": Software version is displayed.
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