Electronic Function; Abbreviation; Display Function - Fisher FSAI-Pro-91AE2 Service Manual

8. Electronic function

8.1 Abbreviation

T1: Indoor room temperature
T2: Coil temperature of evaporator
T3: Coil temperature of condenser
T4: Outdoor ambient temperature
T5: Compressor discharge temperature

8.2 Display function

8.2.1 Icon explanation on indoor display board.
Auto indicator:
AUTO
This indicator illuminates when the air conditioner is in AUTO operation.
PRE.-DEF. Indicator:
DEFROST This indicator illuminates when the air conditioner starts defrosting automatically or
when the warm air control feature is activated in heating mode.
OPERATION indicator:
RUN
This indicator illuminates when the air conditioner is running.
Timer indicator:
TIMER
This indicator illuminates when TIMER is set ON/OFF
Temperature indicator：Displays the temperature settings when the air conditioner is
operational, displays the room temperature in FAN mode.
Displays the malfunction code.
28