4. Troubleshooting
Troubleshooting by alarm code
SMGB0082 rev.1 - 07/2015
146
Alarm code
40-40
Transmission abnormality (Miswiring)
Alarm stop reason
The connection of wiring for transmission between modules (Transmission line between master and slaves) and the
transmission wiring for connection of group controller is mixed.
Retry indication
No retry
PCB monitoring position
PCBc (CPU PCB) CN2 (Transmission port between modules)
PCBc (CPU PCB) CN300 (Transmission port for group controller)
Connect transmission wiring
correctly
Check PCBc (CPU PCB)
No
Yes
The connection of
transmission wiring is
correct
Alarm code
F1-11
~
14
Fan Earth Detection
N O T E
Fan number is indicated by the last digit (example:
F1-11
for fan number 1........
F1-14
for fan number 4)
Alarm stop reason
Earth detection or overcurrent detection.
Retry indication
LCD: By touching "Inspection" "No.1 Cycle", "Fan earth detection retry" is shown in "Fan Status".
PCB monitoring position
PCB
EN
(Fan module)
Replace the fan module
Check the fan motor and
replace it if abnormal
Eliminate the clogging of the air side heat
exchanger
Yes (It trips)
Yes (It trips)
No
No
Turn power source OFF, remove Faston
terminals U,V,W at the fan module, and turn
DSW1-1# of the fan module ON (Up). In that state,
reactivate power and try to operate. Does it trip
(release zero A detection?
The air side heat exchanger is clogged
