Uf " System Is Not Set Yet - Daikin RQYQ140-180PY1 Service Manual

SiBE341001
UF
2.40 " " System is not Set yet
UF
Remote
Controller
Display
Applicable All indoor unit models
Models RQYQ-PY1
RQEQ-PY1
Method of On check operation, the number of indoor units in terms of transmission is not corresponding to
that of indoor units that have made changes in temperature.
Malfunction
Detection
Malfunction The malfunction is determined as soon as the abnormality aforementioned is detected through
Decision checking the system for any erroneous connection of units on the check operation.
Conditions
Supposed
Causes
Troubleshooting
Troubleshooting
Improper connection of transmission wiring between indoor-outdoor units and outdoor-
outdoor units
Failure to execute check operation
Defect of indoor unit PCB
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.
Are the stop valves
opened?
YES
Is the check
operation carried
out?
YES
Is indoor - outdoor and
outdoor - outdoor unit
transmission wiring
normal?
YES
NO
Is indoor-outdoor and
NO
outdoor-outdoor unit
transmission wiring
normal?
NO
NO
Troubleshooting by Remote Controller
Open the stop valve.
YES
Replace the indoor unit PCB.
After fixing the incorrect
wiring, push and hold the
RESET button on the master
outdoor unit PCB for 5
seconds.
* The unit will not run for up to
12 minutes.
Wiring check operation may
not have been carried out
successfully.
186