Single Zone Service Manual - General

Part 4 Trouble Shooting

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3. SF Chassis (1 LED Model)

4. S3 Chassis (Lighting Model)

Error code Description

1 Indoor Sensor (Air) open/short

2 Indoor Sensor (Entry Pipe) open/short

4 Float Switch Error

Communication Failure (Indoor Unit ↔ Outdoor Unit)

6 Indoor Sensor (Exit Pipe) open/short

9 EEPROM ERROR (Indoor Unit)

10 Indoor Unit Fan Lock (Operation Failure)

12 Indoor Sensor (Middle Pipe) open/short

LED1

2sec 2sec

2times 2times 2times

Ex) Error Code 2 : Indoor Sensor(Entry Pipe) open/shot)

1time 2times

2sec 3sec 2sec

2times1time

Ex) Error Code 12 : Indoor Sensor(Middle Pipe) open/short

10 Digit

1 Digit