E07 Outdoor Unit Transmission Failure To Indoor Unit - Panasonic 2WAY Multi Technical & Service Manual

E07 Outdoor Unit Transmission Failure to Indoor Unit

Error detection method
When a self-transmitted signal cannot be self-received (is mismatched) for 3 minutes, an error is determined.
• Outdoor main board is defective
• Outdoor main board terminal resistor switch setting is incorrect.
Troubleshooting
1 "Is the indoor/outdoor operation wiring connected to
Outdoor main 1-1 multiple outdoor units? (Link wiring?) * Link wiring not
board available when water heat exchanger unit is connected."
Is the S010 (terminal resistor) switch on one outdoor main
1-2
board set to "ON" and the remainder to "OFF"?
Is the outdoor main board S010 (terminal resistor) switch
1-3
set to "OFF"?
Indoor/outdoor operation wiring broken or short-circuited?
1-4
(See "5. Reference Document")
1-5 Replace outdoor main board
● For work procedure for replacing outdoor main board, see "5. Reference Document".
● 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–44
Yes 1-2
No 1-3
Yes 1-4
No Set only one unit to "ON"
Yes Set to "ON"
No 1-4
Yes Repair wiring
No 1-5