Fujitsu AUXG18LRLB Technical Manual page 69

 Error status
Function Rotary SW of External
setting / input and output PCB
60-09 / B
60-00 / 2
60-00 / 1
60-10 / C
60-11 / D
The output is ON when an error is generated for the indoor unit.
 Indoor unit fan operation status
Function Rotary SW of External
setting / input and output PCB
60-10 / C
60-00 / 2
60-09 / B
60-11 / D
60-00 / 1
Output signal
On
The indoor unit fan is operating.
Low → High
Off The fan is stopped or during cold air prevention.
High → Low During thermostat off when in dry mode operation.
External output
Output of indoor unit
External input and output
PCB
Error
Indoor unit
Normal
High
CN47
Low
On
Output 1, 2, 3
Off
External output
Output of indoor unit
External input and output
PCB
Fan run
Indoor unit
Fan stop
High
CN47
Low
On
Output 2, 3
Off
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Output
signal
Low → High
CN47
High → Low
Off → On
Output 1
On → Off
Off → On
Output 2
On → Off
Off → On
Output 3
On → Off
Output
signal
Low → High
CN47
High → Low
Off → On
Output 2
On → Off
Off → On
Output 3
On → Off
Condition
Command
Error
Normal
Error
Normal
Error
Normal
Error
Normal
Command
Fan run
Fan stop
Fan run
Fan stop
Fan run
Fan stop