Daikin ARC433A Series User manual

Trouble Shooting
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Daikin Trouble Shooting Guide
Past & Current Models
Daikin Fault Codes
Indoor Fault Codes
Fault Code Definition Supposed Causes Split Skyair VRV Package
A0 External protection active External protection wired to T1-T2 active •••
A1 Failure of indoor PCB Defect of PCB or noise ••••
A3 High water level Float switch open circuit •••
A5 HP control in heating or freeze
protection in cooling
Poor airflow, short circuit, EEV, refrigerant charge,
indoor coil sensor incorrect value
•
A6 Fan motor failure Locked, over current, over load ••••
A7 Failure of louvre motor Louvre motor/indoor PCB failed • •
A8 Failure of power supply Over current of AC input, defect of supply • •
A9 EEV failure Defect of EEV motor, indoor PCB • •
AF High water level Float switch open circuit while thermo off • •
AH Failure of dust collector Defect of dust collecting element, PCB •••
AJ Capacity setting error Capacity setting adaptor missing •••
C1 Communication failure. Between
main-sub PCB
Failure of communication fan motor
control driver
• •
C4 Indoor coil sensor Open/short circuit ••••
C5 Suction pipe sensor Open/short circuit • • •
C6 Failure of fan motor driver Defect of fan motor sensor, control driver • •
C7 Front panel driving motor fault Defect of limit switch, front panel driving motor •
C9 Return air sensor fault Return air sensor open/short circuit ••••
CA Discharge air sensor fault Discharge air sensor open/short circuit • •
CC Failure of humidity sensor Failed humidity sensor • •
CJ Failure of remote sensor Defect of remote controller sensor • •
Daikin Fault Codes
Outdoor Fault Codes
Fault Code Definition Supposed Causes Split Skyair VRV Package
E0 Protection devices tripped Outdoor safety device tripped •••
E1 Failure of outdoor PCB Defect of PCB or noise ••••
E3 High pressure High pressure switch tripped •••
E4 Low pressure Low pressure switch tripped •••
E5 Inverter compressor lock Inverter compressor locked •••
E5 Inverter compressor to hot Compressor windings too hot •
E6 DOL compressor locked High current draw ••••
E7 Fan motor failure Failed fan motor, PCB ••••
E8 Inv compressor high current Compressor, PCB •••
E9 EEV motor failure EEV motor, PCB •••
EA 4-way valve failure Defect of valve, PCB, sensor •
EC Inlet water temperature Abnormal water temperature •
EF Thermal storage unit defect Thermal storage EEV, PCB, sensor •
F3 High discharge temperature Discharge temperature over 110°C ••••
F6 High pressure in cooling Detected by outdoor coil sensor •
F6 Over charged Refrigerant over charge • •
H0 Compressor sensor system All sensors disconnected •
H1 Failure of humidifier damper Defect of limit switch/damper •
H3 Failure of hp switch High pressure switch open circuit ••••
H4 Failure of lp switch Low pressure switch open circuit • •
H5 Failure of compressor sensor Defect of compressor overload sensor •
H6 Compressor position failure Position detection error •
H7 Failure of fan motor signal Defect of fan motor, PCB •••
H8 Compressor input error Defect of transistor, PCB, reactor •
H9 Failed ambient sensor Sensor open short circuit ••••
J1 Failed pressure sensor Pressure sensor failed • •
J2 Failed current sensor Defect of current sensor, PCB, compressor •••
J3 Failed discharge pipe sensor Discharge pipe sensor open/short circuit ••••
J4 Failed outdoor coil vapour sensor Sensor open/short circuit • •
J5 Failed suction pipe sensor Sensor open/short circuit ••••
J6 Failed outdoor coil sensor Sensor open/short circuit ••••
J7 Failed liquid pipe sensor Sensor open/short circuit •••
J8 Failed liquid pipe sensor Sensor open/short circuit •
J9 Failed sub cool heat exchanger sensor Sensor open/short circuit ••••
JA Failed high pressure sensor High pressure sensor open/short circuit •••
JC Failed low pressure sensor Low pressure sensor open/short circuit •••
JH Failed oil temperature sensor Open/short circuit •

www.climatecenter.co.uk
Trouble Shooting
Daikin Trouble Shooting Guide
Past & Current Models
Daikin Fault Codes
Outdoor Fault Codes
Fault Code Definition Supposed Causes Split Skyair VRV Package
L0 Failure of inverter system Defect power transistor, inverter PCB •
L1 Failure of inverter PCB Blown fuse, defect of inverter PCB, fan motor • •
L3 Electrical box temperature over
120°C when comp’ off
Defect of fan motor, PCB,
power transistor
•
L4 Fin temperature over 93°C Failed sensor, short circuit of airflow ••••
L5 Inverter instantaneous DC over
current
Defect of inverter PCB,
compressor lock/windings
••••
L6 Inverter instantaneous AC over
current
Defect of inverter unit,
compressor lock/windings
•
L8 Over current of inverter compressor Defect of inverter PCB compressor
lock/ windings
•••
L9 Inverter compressor start-up
failure
Defect of inverter PCB compressor
lock/ windings, refrigerant charge
•••
LA Failure of power transistor Defect of power transistor, PCB, compressor •
LC Communication fails between PCB
& micro-computer
Noise, defect of PCB •
LC Communication fails between
main & inverter PCB
Defect of inverter PCB, main PCB, fan PCB,
noise filter, compressor
•••
P1 Imbalance of power supply Open phase, imbalance between phases,
Defect of main capacitor, inverter PCB
•••
P2 Automatic refrigerant charge
operation stop
Closed stop valve, closed refrigerant cylinder valve •
P3 Rise in electrical box temperature Defect of fin sensor, PCB, rise in
ambient temperature
• •
P4 Failed radiating fin sensor Sensor open/short circuit ••••
P8 Coil freeze protection during
Automatic charging
Close refrigerant cylinder and start again •
P9 Failure of humidifier fan motor Defect of fan motor, PCB •
P9 Automatic charge operation
completed
•
PA Broken humidifier heater wire Blown thermal fuse, broken heater element •
PA Refrigerant cylinder empty Cylinder on master unit empty •
PC Refrigerant cylinder empty Cylinder on slave unit empty •
PE Auto charge nearly completed •
PH Humidifier outlet temperature
sensor/abnormal heater temp’
Sensor open/short circuit, defect of PCB,
defect of heater unit
•
PJ Capacity not set Capacity setting adaptor not fitted •
PJ Capacity setting error Incorrect capacity setting • •

Trouble Shooting
www.climatecenter.co.uk
Daikin Trouble Shooting Guide
Past & Current Models
Daikin Fault Codes
System Fault Codes
Fault Code Definition Supposed Causes Split Skyair VRV Package HRV
U0 Shortage of refrigerant Undercharged, EEV fault, faulty sensor ••••
U1 Reverse or missing phase Reversed or missing phase ••••
U2 Power supply fault Power supply fault, capacitor wiring error ••••
U3 Check operation not executed Check operation not carried out at
commissioning or after main PCB replaced
•
U4 Communication failure,
between indoor & outdoor
Wiring fault, defect of PCB, pump wired
across communication wiring
•••••
U5 Communication failure,
between r/controller & PCB
Wiring fault, defect of Remote
controller & PCB
•••••
U6 Communication failure
between indoor units
Wiring fault, defect of indoor PCB •
U7 Communication failure,
between outdoor PCB’s
Defect of outdoor PCB,
wiring error between PCB’s
•
U7 Communication failure
between outdoor units
Wiring error between outdoor units,
defect of outdoor PCB
• •
U8 Communication failure be-
tween remote controllers
Main/sub switch not set, wiring error,
defect of remote controller
••••
U9 System communication failed Fault with other indoor unit, no power, A9 •
UA Improper combination Incorrect field setting, wiring, defect of PCB •
UA Incorrect field setting
Wiring, defective PCB
Field setting incorrect (twin/triple), error in •
UA Improper combination of
Indoor/outdoor units
Excess of indoor units, incorrect PCB
Setting, defective PCB
•••
UC Error in address setting Duplicated central control address ••••
UE Communication failure
between indoor central device
Wiring error between indoor unit & central
control, defect of indoor PCB, setting error
••••
UF Wiring/piping mismatch Wiring error indoor to outdoor, PCB defect •••
UH System malfunction Unaddressed indoor unit • •
UH System malfunction Mismatched indoor/outdoor, freeze protect •
UJ Communication failure Defect of accessory device, wiring error •
M1 Central controller failed Failure of central controller PCB •••••
M8 Communication failure
between central & options
Communication failed between central
controller & optional controllers
•••••
MA Improper combination of
optional controllers
Incorrect settings,
faulty central controller
•••••
MC Duplicated address Duplicated central controller address •••••
60 Overall alarm Open circuit across J1-JC •
64 Failed return air sensor Sensor open/short circuit •
65 Failed ambient sensor Sensor open/short circuit •
6A Failure of damper system Defect of damper motor, limit switch, PCB •

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Trouble Shooting
Daikin Trouble Shooting Guide
Past & Current Models
No. Code No. Code No. Code
100 11 E7 21 UA
2U4 12 C7 22 A5
3F3 13 H8 23 J9
4 E6 14 J8 24 E8
5 L5 15 A3 25 P4
6R6 16 A1 26 L3
7E5 17 C4 27 L4
8 LC 18 C5 28 H6
9 C9 19 H9 29 H7
10 UC 20 J6 30 U2
Fault Code Retrieval with Infra Red
Remote Controller
In the ARC433A series, the temperature display sections on
the main unit indicate corresponding codes.
1. When the timer cancel button is held down for
5 seconds, a “00” indication flashes on the temperature
display section.
2. Press the timer cancel button repeatedly until a continuous
beep is produced.
•Thecodeindicationchangesinthesequenceshownbelow
and notifies with a long beep.
1. A short beep and two consecutive beeps indicate
non-corresponding codes.
2.Tocancelthecodedisplay,holdthetimercancelbutton
downfor5seconds.Thedisplayalsocancelsitselfifthe
button is not pressed for 1 minute.
SkyAir, VRV Infra Red Remote Controller
Wireless Controllers – Fault diagnostics
1.PresstheInspection/Testbuttontoselect“Inspection”.
Theequipmententerstheinspectionmode.The“Unit”
indicationlightsandtheUnitNo.displayshowsaflashing
“0” indication.
2.SettheUnitNo.bypressingtheUP/DOWNbutton&
changetheUnitNo.displayuntilashortbeepisgenerated
by the indoor unit.
3.PresstheMODEbutton.Theleft“0”flashes.
4.PresstheUP/DOWNbutton&changedisplayuntil2short
beeps are heard. First part of fault code.
5.PresstheMODEbutton.Theright“0”flashes.
6.PresstheUP/DOWNbutton&changethedisplayuntil
1 short beep is heard or a continuous beep is heard
indicating both digits match the fault code.
Time
Cancel
Button
00
4
5
1
3
2
6