Panasonic 2WAY Multi - E08 Duplicated Indoor Unit Address Setting

IV–45
E08 Duplicated Indoor Unit Address Setting
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Error detection method
An error is determined when the Indoor unit address is duplicated.
• In the remote controller detailed settings mode, the indoor address setting is duplicated.
• Several indoor units with no indoor unit address setting have the DISP pin (CN063/CN072) short-circuited.
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Troubleshooting
1
Link wiring
1-1
Is the water heat exchanger unit connected and link wiring
in effect?
Yes Stop using link wiring
No 2-1
2
Indoor unit’s
control board
2-1
Is the DISP pin (CN063/CN072) on the indoor unit’s
control board short-circuited?
Yes Eliminate shor t-circuit
No 2-2
2-2
Perform pre-check before auto-addressing. (See “5.
Reference Document.”) Does E08 remain after repeating
auto-addressing?
Yes 2-3
No 2-4
2-3 The non-volatile memory (EEPROM) on the indoor board is defective → Replace
2-4
To change indoor unit address, instead of using the remote controller’s advanced settings,
use the remote controller’s address change mode.
● The designation (/) is used in the table to indicate indoor boards for DC and AC motor models.
● See instructions packaged with servicing indoor board for procedure on replacing indoor non-volatile
memory (EEPROM).
GHPtroubleshooting.indbIV‒45GHPtroubleshooting.indbIV‒45 2012/11/2611:20:092012/11/2611:20:09