IV–105
P31 Group Control Error (Cannot be detected when the water heat exchanger unit is connected.)
Error detection method
Under the following conditions, all non-master units in the remote controller group display this error and stop.
• When remote controller linking wiring is connected to an indoor unit independently controlled by a remote
controller (L07)
• When multiple master units exist within remote controller group wiring (L03).
• When indoor unit fails to receive from remote controller (central) (E03).
Troubleshooting
1
Remote
controller
group wiring
1-1
Is this indoor unit independently controlled by remote
controller?
Yes 1-2
No 1-3
1-2
In the remote controller detailed settings mode, confi rm independent control, then disconnect
the remote controller group link wiring.
1-3
In the remote controller detailed settings mode, check the group settings. If set to
“Independent”, correct settings.
● See “5. Reference Document” for detailed remote controller settings.
GHPtroubleshooting.indbIV‒105GHPtroubleshooting.indbIV‒105 2012/11/2611:20:162012/11/2611:20:16