Panasonic 2WAY Multi - E05 Indoor Unit Transmission Failure to Outdoor Unit

IV–40
E05 Indoor Unit Transmission Failure to Outdoor Unit
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Error detection method
When a self-transmitted signal cannot be self-received, an error is determined.
• Indoor (water heat exchanger unit) control board is defective.
• Outdoor main board terminal resistor switch setting is incorrect.
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Troubleshooting
1
Indoor control
board
1-1
Is the indoor/outdoor operation wiring connected to
multiple outdoor units? (Link wiring?)
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?
Yes Repair wir ing
No 1-5
1-5 Replace indoor (water heat exchanger unit) control board
● See instructions packaged with servicing indoor board for procedure on replacing indoor control board.
● See “5. Reference Document” for details on the procedure for replacing the water heat exchanger unit’s
control board.
GHPtroubleshooting.indbIV‒40GHPtroubleshooting.indbIV‒40 2012/11/2611:20:092012/11/2611:20:09