Remote Controller Displays Error Code - Daikin VRV II-Q RQYQ8-48PY1B Service Manual

Test Operation

[Remote controller displays error code]

Error code
E3 F3
The outdoor unit stop valve has not been opened. Check that the gas and liquid side stop valves are open.
E4 UF
P8
Instruction to perform additional refrigerant
P9
charging during check operation (not an error)
PA
DIP switch (DS1, DS2) setting is incorrect after the
PJ
outdoor unit PCB (A1P) was replaced.
U1 Phase of outdoor unit power is reversed.
Check operation has not been completed
U3
normally.
Power is not being supplied (including cases of
U4
open phase) to an outdoor unit or indoor unit.
A model which cannot be connected in a multi-
U7
outdoor-unit system has been connected in a
UA
multi-outdoor-unit system.
There is trouble at another indoor unit within the
U9
same system.
Wrong connection in piping or wiring between
units.
UF
If an outdoor - outdoor transmission wire was
connected or disconnected during check operation
UH Wrong wiring between units
66
Installation trouble Corrective action
Follow the procedure for check operation (refer to the
previous page) and perform additional refrigerant charge.
Follow the instructions in "Field setting from outdoor unit"
(refer to P.68) and make the correct setting.
Reverse 2 of the 3 phases and connect with the correct
phases.
Perform check operation again.
Supply power correctly to the outdoor units and indoor units.
Change to individual piping, and disconnect the wiring from
the multi-outdoor-unit terminals (Q1, Q2).
An error code is displayed on the remote controller, or else
trouble has occurred at an indoor unit where an error code
is not displayed on the remote controller. Correct the trouble
at the corresponding indoor unit. If no error code is
displayed on the remote controller, press the INSPECTION/
TEST button on the remote controller to display the error
code. Check that the refrigerant piping system and interunit
wiring connections match.
Complete the transmission wiring work, then perform check
operation again.
Connect the interunit wiring (cool/heat select remote
controller, inside-outside, outside-outside, multi-outside-
unit).
If voltage of 100V or higher was applied to the outdoor unit
PCB (A1P), the outdoor unit PCB or indoor unit PCB may be
damaged. If the error display "UH" appears even after the
connection was corrected, the PCB must be replaced.
SiBE341027
Test Operation