Panasonic 2WAY Multi Technical & Service Manual page 72

2) When the water heat exchanger unit is connected
1 Are there any poor connections, contacts, crimping or
Wiring 1-1 severed wires or pinched wires in the sensor's connectors or
check connector wiring?
2
Temperature
Disconnect the sensor's connector and measure the
sensor
2-1 resistance. Is the resistance between the broken wire
check
detection value and the short-circuit detection value?
● See "5. Reference Document" for details on the procedure for replacing the water heat exchanger unit's
control board.
● For board and Electrical Wiring Diagram, see Chapter 6.
• Outdoor main board: page VI-2
• Outdoor power board: page VI-3
• Converter board: VI-4
• Indoor control board for DC motor models: page VI-5
• Outdoor Unit Electrical Wiring Diagram: page VI-6
IV–59
Yes Repair Wiring
No 2-1
Replace the water heat
Yes exchanger unit's control
board
Replace the temperature
No
sensor