Panasonic CS-F14DB4E5 / CU-B28DBE5 / CU-B28DBE8 / CS-F18DB4E5 / CU-B34DBE5 / CU-B34DBE8 / CS-F24DB4E5 / CU-B43DBE8 / CS-F28DB4E5 / CU-B50DBE8 Simplified Service Manual ▷ View online
9
3 Twin Systems
3.1.
Installation Manual
10
11
4 Troubleshooting Guide
4.1.
During twin operation
System example
1. The main power is turned on while the transmission wires between the indoor units are not connected.
(open circuit at A or B)
Symptom
Remote control unit: “check” flashes
Error code: F30-01 (connected indoor capacity error)
Indoor unit No. 1: LED1 on P.C.B flashes
Indoor unit No. 2: no power supply
Outdoor unit: LED6, 7 on P.C.B flashes (connected indoor capacity error)
Symptom
Remote control unit: “check” flashes
Error code: F30-01 (connected indoor capacity error)
Indoor unit No. 1: LED1 on P.C.B flashes
Indoor unit No. 2: no power supply
Outdoor unit: LED6, 7 on P.C.B flashes (connected indoor capacity error)
2. The main power is turned on while the transmission wires between the indoor units are not connected.
(open circuit at section C)
Symptom
Remote control unit: “check” flashes
Error code: F30-01 (connected indoor capacity error)
Indoor unit No. 1: LED1 on P.C.B flashes
Indoor unit No. 2: no power supply
Outdoor unit: LED5, 6 on P.C.B flashes (connected indoor capacity error)
Symptom
Remote control unit: “check” flashes
Error code: F30-01 (connected indoor capacity error)
Indoor unit No. 1: LED1 on P.C.B flashes
Indoor unit No. 2: no power supply
Outdoor unit: LED5, 6 on P.C.B flashes (connected indoor capacity error)
3. The main power is turned on and the connection wire is all ok.
If operation starts in this condition, combination of the B50DBE8 outdoor unit and F24DB4E5 indoor unit will result in
abnormal operation.
Symptom
Remote control unit: “check” flashes
Error code: F30-01 (connected indoor capacity error)
abnormal operation.
Symptom
Remote control unit: “check” flashes
Error code: F30-01 (connected indoor capacity error)
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Indoor unit: LED1 on P.C.B flashes
Outdoor unit: LED6, 7 on P.C.B flashes
Outdoor unit: LED6, 7 on P.C.B flashes
4. The main power is turned on and the connection wire is all ok.
If operation starts in this condition, combination of the B50DBE8 outdoor unit and F24DB4E5 indoor unit will result in
abnormal operation.
Symptom
Remote control unit: “check” flashes
Error code: F30-01 (connected indoor capacity error)
Indoor unit: LED1 on P.C.B flashes
Outdoor unit: LED6, 7 on P.C.B flashes (connected indoor capacity error)
abnormal operation.
Symptom
Remote control unit: “check” flashes
Error code: F30-01 (connected indoor capacity error)
Indoor unit: LED1 on P.C.B flashes
Outdoor unit: LED6, 7 on P.C.B flashes (connected indoor capacity error)
Remedy
1. Turn off the main power.
↓
2. Connect the disconnected wire correctly.
↓
3. Turn on the main power.
↓
4. After 1 minute, start the operation using the remote control.
(Indoor unit operation will start according to the remote control setting.)
(Outdoor unit operation will start after 3-5 minutes.)
(Outdoor unit operation will start after 3-5 minutes.)
[PHAAM] Printed in Malaysia
SSBZ0605-00
