Electronic Function; Abbreviation; Display Function - Fisher FSAI-SU-90AE2 Service Manual

7. Electronic function

7.1 Abbreviation

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

7.2 Display function

7.2.1 Icon explanation on indoor display board.
It has no function on this unit
fresh
DEFROST indication lamp(For cooling & heating models only): Lights up
when the air conditioner starts defrosting automatically or when the warm air
defrost
control feature is activated in heating operation.
OPERATION indication lamp：This lamp illuminates when the air conditioner is in
run
operation.
TIMER indication lamp：Lights up during Timer operation.
timer
Temperature indicator：Displays the temperature settings when the air conditioner
is operational. Displays the malfunction code.
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