M1" Pc Board Defect - Daikin VRV II RXYQ5MY1B Service Manual

Troubleshooting (OP: Schedule Timer)
4.2

"M1" PC Board Defect

M1
Remote
Controller
Display
Applicable Schedule timer
Models
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
244
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
SiE39-404
External factor other
than equipment
malfunction (noise etc.)
Replace the indoor unit
PC board.
(V2837)
Troubleshooting