M1" Pc Board Defect - Daikin R410As Service Manual

Troubleshooting (OP: Schedule Timer)
" M1 "
4.2 PC Board Defect
M1
Remote
Controller
Display
Applicable Schedule timer
Models
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
!
Supposed
Causes
Troubleshooting
226
Defect of schedule timer PC board
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
Si39-302
External factor other
than equipment
malfunction (noise etc.)
Replace the indoor unit
PC board.
(V2837)
Troubleshooting