M1" Pc Board Defect - Daikin R-410A Service Manual

Troubleshooting (OP: Schedule Timer)

"M1" PC Board Defect

7.2
M1
Remote
Controller
Display
Applicable
Schedule timer
Models
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
! Defect of schedule timer PC board
Supposed
Causes
Troubleshooting
180
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Reset power supply.
Does the system
return to normal?
NO
YES
SiBE39-402A
External factor other
than equipment
malfunction (noise etc.)
Replace the indoor unit
PC board.
(V2837)
Troubleshooting