Troubleshooting - GE AZ85E09DAC Technical Service Manual

Self-Check and Force Mode
The Zoneline unit incorporates a forced function feature so that components can be operated regardless of
ambient conditions to allow testing of various components.
To enter the self-check and force mode:
1. Disconnect the unit from power.
2. Access the main board. (See
3. Push SW1 for 5 seconds and at the same time put the power on.
4. Then change step by step by pushing SW1.
Reset power to exit the self-check and force mode.
85H SERIES
STEP LED1 LED2
0 ¤ ¤
1 ¤ *
2 - ¤
3 - -
4 - -
5 - -
6 - -
7 - -
¤ : ON * : BLINK - : OFF

Troubleshooting

.)
Main Board
COMPRESSOR LINE BREAK
RVS
RY101
- -
¤ ¤
¤ ¤
¤ ¤
- -
- -
- -
¤ -
LED 2
HEATERS I.D Fan
RY102
- -
- -
- -
- -
¤ -
¤ ¤
- ¤
- -
– 45 –
LED 1
SW1
O.D Fan MODE
- - STOP
Cooling
L L
L
Cooling
L L
L
Cooling
H H
H
Fan
L L
L
Heater
H H
H
Fan
H H
H
Heater-Pump
H H
H
RVS = Reversing Valve Solenoid
(Continued next page)