System Is Not Set Yet; Uf" System Is Not Set Yet - Daikin REYQ72 Serveice Manual

SiUS39-602
2.54 " UF "

System is not Set yet

UF
Remote
Controller
Display
Applicable All indoor units models
REYQ72M, 96M
Models
Method of The number of indoor units in terms of data transmission becomes mismatched to that of indoor
Malfunction units with changes in temperature on operation for checks.
Detection
Malfunction The malfunction is determined as soon as the abnormality aforementioned is detected through
checking the system for any erroneous connection of units on the check operation.
Decision
Conditions
Supposed
Causes
Troubleshooting
Note: Wiring check operation may not be successful if carried out after the outdoor unit has been off
for more than 12 hours, or if it is not carried out after running all connected indoor units in the
fan mode for at least an hour.
Troubleshooting
Improper connection of transmission wiring between indoor-outdoor unit and outdoor unit-
external control adaptor for outdoor unit
Failure to execute check operation
Defect of indoor unit PC board
Stop valve is left in closed.
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
NO
Are the stop
valves openned?
YES
Is the
NO
check operation
carried out?
YES
Is
indoor - outdoor
NO
and outdoor - outdoor unit
transmission wiring
normal?
YES
Troubleshooting by Indication on the Remote Controller
Is indoor
YES
-outdoor and outdoor-
outdoor unit transmission
wiring normal?
NO
Open stop valve.
Replace indoor unit PC board.
After fixing incorrect wiring,
push and hold the RESET
button on the master outdoor
unit PC board for 5 seconds.
(Wiring check operation)
∗ The unit will not run for up to
12 minutes.
Wiring check operation may
not have been carried out
successfully.
(V2830)
191