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[ IX Troubleshooting ]
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HWE09080 GB
1. Error Code
No ACK error
2. Error definition and error detection method
The error is detected when no acknowledgement (ACK signal) is received after the transmission. (eg. When the data is trans-
mitted six times in a row with 30 seconds interval, the error is detected on the transmission side.)
The address/attribute appeared on the display on the remote controller indicates the controller which did not provide
the response (ACK).
3. System configuration
(3) System connected to the system controllers (MELANS)
6607
Error
source
address
Error display
Detection
method
Cause Check method and remedy
Heat
source
unit
(OC)
ME remote
controller (RC)
System control-
ler (SC)
MA remote
controller (MA)
No acknowl-
edgement
(ACK) at IC
transmis-
sion to OC
Same cause as that for system with one
heat source unit
Same remedy as that for
system with one heat
source unit
BC con-
troller
(BC)
ME remote
controller (RC)
system control-
ler (SC)
MA remote
controller (MA)
No acknowl-
edgement
(ACK) at IC
transmis-
sion to BC
Same cause as that for system with one
heat source unit
Same remedy as that for
system with one heat
source unit