Installation and operation manual
54
10T8Y1B
VRV-W IV System Air Conditioner
4P399208-1 – 2015.01
Recommended replacement cycle of wear parts
Table 2: "Replacement Cycle" list
Moving and discarding the unit
Contact your dealer for removing and reinstalling the total unit.
Moving units requires technical expertise.
This unit uses hydrofluorocarbon. Contact your dealer when
discarding this unit. It is required by law to collect, transport and
discard the refrigerant in accordance with the
"hydrofluorocarbon collection and destruction" regulations.
11.4. Malfunction codes
In case a malfunction code appears on the indoor unit user interface
display, contact your installer and inform the malfunction code, the
unit type, and serial number (you can find this information on the
nameplate of the unit).
For your reference, a list with general malfunction codes is provided.
You can, depending on the level of the malfunction code, reset the
code by pushing the ON/OFF button. If not, ask your installer for
advice.
Component
Inspection
cycle
Maintenance cycle
(replacements and/or
repairs)
Air filter
1 year
5 years
High efficiency filter
1 year
Fuse
10 years
Crankcase heater
8 years
NOTICE
Table 2: "Replacement Cycle" list
components. Refer to your maintenance and
inspection contract for more details.
Table 2: "Replacement Cycle" list
indicates
recommended intervals of replacement cycles.
However, in order to keep the unit operational as long
as possible, maintenance work may be required
sooner. Recommended intervals can be used for
appropriate maintenance design in terms of budgeting
maintenance and inspection fees. Contact your dealer
for details.
INFORMATION
Damage due to taking apart or cleaning interiors of units by
anyone other than our authorised dealers may not be
included in the warranty.
Malfunction
code
Contents
Main code
A0
External protection device was activated
A1
EEPROM failure (indoor)
A3
Drain system malfunction (indoor)
A6
Fan motor malfunction (indoor)
A7
Swing flap motor malfunction (indoor)
A9
Expansion valve malfunction (indoor)
AF
Drain malfunction (indoor unit)
AH
Filter dust chamber malfunction (indoor)
AJ
Capacity setting malfunction (indoor)
C1
Transmission malfunction between main PCB and sub PCB
(indoor)
C4
Heat exchanger thermistor malfunction (indoor; liquid)
C5
Heat exchanger thermistor malfunction (indoor; gas)
C9
Suction air thermistor malfunction (indoor)
CA
Discharge air thermistor malfunction (indoor)
CE
Movement detector or floor temperature sensor malfunction
(indoor)
CJ
User interface thermistor malfunction (indoor)
E1
PCB malfunction (outdoor)
E2
Current leakage detector was activated (outdoor)
E3
High pressure switch was activated
E4
Low pressure malfunction (outdoor)
E5
Compressor lock detection (outdoor)
E9
Electronic expansion valve malfunction (outdoor)
F3
Discharge temperature malfunction (outdoor)
F4
Abnormal suction temperature (outdoor)
F6
Refrigerant overcharge detection
H3
High pressure switch malfunction
H4
Low pressure switch malfunction
J1
Pressure sensor malfunction
J2
Current sensor malfunction
J3
Discharge temperature sensor malfunction (outdoor)
J4
Heat exchanger gas temperature sensor malfunction
(outdoor)
J5
Suction temperature sensor malfunction (outdoor)
J7
Liquid temperature sensor (after subcool HE) malfunction
(outdoor)
J8
Liquid temperature sensor malfunction (outdoor)
J9
Gas temperature sensor malfunction (outdoor)
JA
High pressure sensor malfunction (S1NPH)
JC
Low pressure sensor malfunction (S1NPL)
L1
INV PCB abnormal
L4
Fin temperature abnormal
L5
Inverter PCB faulty
L8
Compressor over current detected
L9
Compressor lock (startup)
LC
Transmission outdoor unit - inverter: INV transmission
trouble
P1
INV unbalanced power supply voltage
P4
Fin thermistor malfunction
PJ
Capacity setting malfunction (outdoor)
U0
Abnormal low pressure drop, faulty expansion valve
U1
Reversed power supply phase malfunction
U2
INV voltage power shortage
U3
System test run not yet executed
U4
Faulty wiring indoor/outdoor
U5
Abnormal user interface - indoor communication
U7
Faulty wiring to outdoor/outdoor
U8
Abnormal main-sub user interface communication
U9
System mismatch. Wrong type of indoor units combined.
Indoor unit malfunction.
UA
Connection malfunction over indoor units or type mismatch
UC
Centralized address duplication
UE
Malfunction in communication centralized control device -
indoor unit
UF
Auto address malfunction (inconsistency)
UH
Auto address malfunction (inconsistency)
Malfunction
code
Contents
Main code
