Daikin Super Multi Plus E-Series - Malfunction of System, Refrigerant System Address Undefined

SiEN18-622 Troubleshooting for Outdoor Unit
Troubleshooting 403
7.37 Malfunction of System, Refrigerant System Address
Undefined
Remote Control
Display
UH
Applicable
Models
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 adapter
 Defect of indoor unit PCB
 Defect of outdoor unit PCB (A1P)
Troubleshooting
Caution
(V2831)
NO
YES
YES
NO
YES
NO
Doesa malfunction occur?
NO
YES
NO
Does
a malfunction
occur even after 12
minutes elapses from the
time when electricity is
introduced to indoor
and outdoor
units?
YES
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Is
electricity
being introduced
for the first time after
installation or after an
indoor or outdoor unit
PC board has been
replaced?
Is
indoor - outdoor and
outdoor - indoor unit
transmission wiring
normal?
After fixing incorrect wiring,
push and hold the RESET
button on the outdoor unit
PC board for 5 seconds
Doesa
"UH" malfunction occur
for all indoor units in the
sys
tem?
After fixing incorrect wiring,
push and hold the RESET
button on the master outdoor
unit PC board for 5 seconds.
* The unit will nog run for up
to 12 minutes.
Replace indoor unit PC board.
Replace outdoor unit PC
board (A1P).
Normal
Normal