Download Daikin FDXS35EAVMB Specifications

SiBE18-821
Troubleshooting for Outdoor Unit
7.37 Malfunction of System, Refrigerant System Address
Undefined
Remote
Controller
Display
Applicable
Models
UH
All indoor unit models
All outdoor unit models
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
„ Improper connection of transmission wiring between outdoor unit and outdoor unit outside
control adaptor
„ Defect of indoor unit PCB
„ Defect of outdoor unit PCB (A1P)
Troubleshooting
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Is
electricity
being introduce
for the first time after
installationor after an indoor
or outdoor unit PC
board has been
replaced?
YES
NO
Is indoor
- outdoor and
outdoor - outdoor unit
transmission wiring
normal?
NO
Normal
YES
NO
YES
After fixing incorrect wiring,
push and hold the RESET
button on the outdoor unit PC
board for 5 seconds
Does a
malfunction occur?
Does a
malfunction
occur even after 12
minutes elapses from the
time when electricity is
introduced to indoor
and outdoor
units?
NO
After fixing incorrect
wiring, push and hold the
RESET button on the
master outdoor unit PC
board for 5 seconds.
∗ The unit will not run for
up to 12 minutes.
Normal
YES
Does a
"UH" malfunction
occur for all indoor units
in the system?
YES
NO
Replace indoor unit PC
board.
Replace outdoor unit PC
board (A1P).
(Q0586)
Troubleshooting
345