Daikin AT12BV1LS Pocket Manual page 35

Troubleshooting
34
2A
Shutter
opening itself?
NO
A
Relay harness
broken or connector
disconnected?
NO
YES
Check the shutter's
sealing material.
Check the shutter for
deformation or its
sealing material.
YES
Reconnect the
connector or replace
the relay harness.
Replace the shutter
drive motor or the PC
board (2).
Service Diagnosis
Si10-417
(Q0346)