Panasonic 2WAY Multi - E11 Indoor Unit Receive Failure from Signal Output Board

IV–47
E11 Indoor Unit Receive Failure from Signal Output Board
(Cannot be detected when the water heat exchanger unit is connected.)
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Error detection method
After confi rming existence of the signal output board, an error is determined upon no reception from the signal
output board.
• Signal output board is defective.
• Wiring to signal output board is defective.
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Troubleshooting
1
Signal output
board
1-1
Wiring to signal output board (option board) broken or
short-circuited?
Yes Repair wir ing
No 1-2
1-2
Replace the signal output board (option board) and wiring.
Is E11 displayed again?
Yes
Replace indoor control
board
No
Replace signal output
board
● See instructions packaged with servicing indoor board for procedure on replacing indoor control board.
GHPtroubleshooting.indbIV‒47GHPtroubleshooting.indbIV‒47 2012/11/2611:20:102012/11/2611:20:10