• Code: C-0604
• Description: 1st tandem PF-703 dehumidifier fan /Lt2 (FM25) rotation abnormality. The FM25EM error detection signal is detected twice in succession within a specified period of time after FM25 was turned ON. However, an error detection signal (blowout of ICP) is not detected.
• Causes: • Dehumidifier fan /Lt2 (FM25: HT-505) • PF drive board (PFUDB: PF-703)
• Remedy: 1. Check the connector connection and the wiring between PFUDB and the fan heater, and repair it if any abnormality. 2. Rotate the fan by I/O or hand, and repair it if any abnormality. (Wiring diagram: PF-703: 11-C) 3. Replace the fan heater (FM25). 4. Replace PFUDB.

• Code: C-0605
• Description: 1st tandem PF-703 dehumidifier fan /Rt3 (FM26) rotation abnormality. The FM26EM error detection signal is detected twice in succession within a specified period of time after FM26 was turned ON. However, an error detection signal (blowout of ICP) is not detected.
• Causes: • Dehumidifier fan /Rt3 (FM26: HT-505) • PF drive board (PFUDB: PF-703)
• Remedy: 1. Check the connector connection and the wiring between PFUDB and the fan heater, and repair it if any abnormality. 2. Rotate the fan or I/O by hand, and repair it if any abnormality. (Wiring diagram: PF-703: 11-D) 3. Replace the fan heater (FM26). 4. Replace PFUDB.

• Code: C-0606
• Description: 1st tandem PF-703 dehumidifier fan /Lt3 (FM27) rotation abnormality. The FM27EM error detection signal is detected twice in succession within a specified period of time after FM27 was turned ON. However, an error detection signal (blowout of ICP) is not detected.
• Causes: • Dehumidifier fan /Lt3 (FM27: HT-505) • PF drive board (PFUDB: PF-703)
• Remedy: 1. Check the connector connection and the wiring between PFUDB and the fan heater, and repair it if any abnormality. 2. Rotate the fan or I/O by hand, and repair it if any abnormality. (Wiring diagram: PF-703: 12-D) 3. Replace the fan heater (FM27). 4. Replace PFUDB.

• Code: C-0611
• Description: 2nd tandem PF-703 dehumidifier fan /Rt1 (FM22) rotation abnormality. The FM22EM error detection signal is detected twice in succession within a specified period of time after FM22 was turned ON. However, an error detection signal (blowout of ICP) is not detected.
• Causes: • Dehumidifier fan /Rt1 (FM22: HT-505) • PF drive board (PFUDB: PF-703)
• Remedy: 1. Check the connector connection and the wiring between PFUDB and the fan heater, and repair it if any abnormality. 2. Rotate the fan or I/O by hand, and repair it if any abnormality. (Wiring diagram: PF-703: 9-B) 3. Replace the fan heater (FM22). 4. Replace PFUDB.

• Code: C-0612
• Description: 2nd tandem PF-703 dehumidifier fan /Lt1 (FM23) rotation abnormality. The FM23EM error detection signal is detected twice in succession within a specified period of time after FM23 was turned ON. However, an error detection signal (blowout of ICP) is not detected.
• Causes: • Dehumidifier fan /Lt1 (FM23: HT-505) • PF drive board (PFUDB: PF-703)
• Remedy: 1. Check the connector connection and the wiring between PFUDB and the fan heater, and repair it if any abnormality. 2. Rotate the fan or I/O by hand, and repair it if any abnormality. (Wiring diagram: PF-703: 10-C) 3. Replace the fan heater (FM23). 4. Replace PFUDB.

• Code: C-0613
• Description: 2nd tandem PF-703 dehumidifier fan /Rt2 (FM24) rotation abnormality. The FM24EM error detection signal is detected twice in succession within a specified period of time after FM24 was turned ON. However, an error detection signal (blowout of ICP) is not detected.
• Causes: • Dehumidifier fan /Rt2 (FM24: HT-505) • PF drive board (PFUDB: PF-703)
• Remedy: 1. Check the connector connection and the wiring between PFUDB and the fan heater, and repair it if any abnormality. 2. Rotate the fan by I/O or hand, and repair it if any abnormality. (Wiring diagram: PF-703: 10-C) 3. Replace the fan heater (FM24). 4. Replace PFUDB.

• Code: C-0614
• Description: 2nd tandem PF-703 dehumidifier fan /Lt2 (FM25) rotation abnormality. The FM25EM error detection signal is detected twice in succession within a specified period of time after FM25 was turned ON. However, an error detection signal (blowout of ICP) is not detected.
• Causes: • Dehumidifier fan /Lt2 (FM25: HT-505) • PF drive board (PFUDB: PF-703)
• Remedy: 1. Check the connector connection and the wiring between PFUDB and the fan heater, and repair it if any abnormality. 2. Rotate the fan by I/O or hand, and repair it if any abnormality. (Wiring diagram: PF-703: 11-C) 3. Replace the fan heater (FM25). 4. Replace PFUDB.

• Code: C-0615
• Description: 2nd tandem PF-703 dehumidifier fan /Rt3 (FM26) rotation abnormality. The FM26EM error detection signal is detected twice in succession within a specified period of time after FM26 was turned ON. However, an error detection signal (blowout of ICP) is not detected.
• Causes: • Dehumidifier fan /Rt3 (FM26: HT-505) • PF drive board (PFUDB: PF-703)
• Remedy: 1. Check the connector connection and the wiring between PFUDB and the fan heater, and repair it if any abnormality. 2. Rotate the fan or I/O by hand, and repair it if any abnormality. (Wiring diagram: PF-703: 11-D) 3. Replace the fan heater (FM26). 4. Replace PFUDB.