Panasonic 2WAY Multi - E07 Outdoor Unit Transmission Failure to Indoor Unit

IV–44
E07 Outdoor Unit Transmission Failure to Indoor Unit
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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.
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Troubleshooting
1
Outdoor main
board
1-1
“Is the indoor/outdoor operation wiring connected to
multiple outdoor units? (Link wiring?) * Link wiring not
available when water heat exchanger unit is connected.”
Yes 1-2
No 1-3
1-2
Is the S010 (terminal resistor) switch on one outdoor main
board set to “ON” and the remainder to “OFF”?
Yes 1- 4
No Set only one unit to “ON”
1-3
Is the outdoor main board S010 (terminal resistor) switch
set to “OFF”?
Yes Set to “ON”
No 1-4
1-4
Indoor/outdoor operation wiring broken or short-circuited?
(See “5. Reference Document”)
Yes Repair wir ing
No 1-5
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
GHPtroubleshooting.indbIV‒44GHPtroubleshooting.indbIV‒44 2012/11/2611:20:092012/11/2611:20:09