5
8. MAINTENANCE & UPKEEP
8.1 Importants
Only the professionals can perform repair.
Before performing operation for the electric connectors or
cleansing the filter, turn off the main power switch.
Do not use water or air with a temperature higher than 50°C to
cleanse the filter or panel.
Check and maintain the ventilating slot once every half years,
wash and maintain with corresponding disinfection shall process
once
every two years are recommended. The filter can expel dust
and other particles in the air. If it is blocked, the effect of the air
conditioner will be degraded.Therefore, clean it every another
two weeks if you use the air conditioner for a long period.
If the indoor unit is installed in a place with heavy dust, clean the
filter more often.
If the stain is heavy and difficult to clean, replace the filter (the
substitute filter is an optional assembly in the sale).
Do not replace the power cable without permission. If the power
cable is damaged, specialized power cable must be used as
substitute. No not repair the air conditioner without permission.
The foregoing operations must be performed by the local
distributor or aftersales service office of manfacturer.
8.2 Maintenance & Upkeep Of Outdoor Unit
The edge of some sheet metal assemblies and the fin of the
condenser are very sharp. Incorrect operation may cause harm.
Be cautious when cleaning them up.
Check the air inlet and outlet of the outdoor unit periodically to
see whether they are blocked by stain or lampblack.
Contact the distributor or the aftersales service center of
manfacturer.
8.3
Operation Required Before Leaving The
Air Conditioner Idle For A Long Period:
Let the air conditioner run in the air supply mode for about half a
day, and let its interior be fully dry.
Switch off the power by the button in remote controller, and then
cut off the power supply.
When the main power switch is turned on, a certain extent of
electric power is consumed even if the air conditioner does not
run. Turning off the main power switch can save energy.
Remove the batteries out of the remote controller.
After the air conditioner has been in service for several seasons,
foreign substance accumulates inside the unit to an extent
dependent on the working conditions. Therefore, shut down
the air conditioner through the ON/OFF button of the remote
controller, and then cut off the power supply.
8.4
Startup After A Long Period Out Of Service
Check the following issues:
● Check whether the air inlet or outlet of the indoor unit and
outdoor unit is blocked. Remove foreign substance if any.
●
Check whether the ground wire is connected properly.
●
Check whether the condensate water is discharged normally.
(Cooling operation season)
●
Check whether the insulation work of refrigerant circuit and ventilating
duct is on sound status.
●
Check whether the installing seat is corroded or rusted.
Startup
●
Connect the indoor unit 12 hours after connect the outdoor unit to
power supply.
●
Switch on the power control of remote controller or wire controller,
and than startup the air conditioning.
9 MALFUNCTION CODE OF OUTDOOR UNIT
Table 9-1
No.
Failure or Protection Type
Recovery
Mode
Fault
Code
1
COMM.Fault between DSP and chip
Recoverable
H0
2
COMM.Fault between communication chip and
main chip
Recoverable
H1
3
3 times of P6 protection in 30 minutes
Irrecoverable
H4
4
3 times of P2 protection in 30 minutes
Irrecoverable
H5
5
The number of indoor units decreases
Recoverable
H7
6
Reserved
Recoverable
H8
7
M-HOME for the indoor and outdoor units does
not match
Irrecoverable
HF
8
Reserved
Recoverable
E1
9
Communication fault between the outdoor and
indoor units
Recoverable
E2
10
T3 & T4 temperature sensor fault
Recoverable
E4
11
Voltage protection fault or a lack of Phase B
,
Phase N
Recoverable
E5
12
DC fan motor fault
Recoverable
E6
13
Discharge temperature sensor fault
Recoverable
E7
14
A fan in the A region run for more than 5 minutes
in heat mode
Recoverable
EA
15
2 times of E6 protection in 10 minutes
Irrecoverable
EB
16
Inverter compressure top high temperature
protection
Recoverable
P0
17
High pressure protection or exhaust temperature
switch protection
Recoverable
P1
18
Low pressure protection
Recoverable
P2
19
Outdoor input current protection
Recoverable
P3
20
Compressor discharge high protection
Recoverable
P4
21
Outdoor condenser high temperature protection Recoverable
P5
22
Inverter module protection
Recoverable
P6
23
Typhoon protection
Recoverable
P8
24
Evaporator high temperature protection
Recoverable
PE
Display Function Instruction
1. When stand by, LED displaying the amount of indoor units online
which communicate with outdoor units.
2. When operation, LED displaying frequency value of compressor.
3. When defrost, LED displaying “dF”.
4 The power cord type designation is H07RN-F.
