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Idiomas disponibles
Test Run & Fault Code
Before Test Run
• Before switching it on, test the supply terminal tier (L, N terminals) and grounding points with 500V
megaohm meter and check if the resistance is above 1MΩ. It can't be o'perated if it is below 1MΩ.
• Connect it to the power supply of outdoor units to energize the heating belt of the compressor. To
protect the compressor at startup, power it on 12 hours prior to the operation.
Check if the arrangements of the drainpipe and connection line are correct.
The drainpipe shall be placed at the lower part while the connection line placed at the upper part.
Heat preservation measures should be taken such as winding the drainpipe esp. in the indoor units
with heating insulating materials.
The drain pipe should be made a slope type to avoid protruding at the upper part and concaving at
the lower part on the way.
Checkup of Installation
check if the mains voltage is matching
check if there is air leakage at the piping
joints
check if the connections of mains power
and indoor & outdoor units are correct
check if the serial numbers of terminals are
matching
Ways of Test Run
Do ask the installation personnel to make a test run. Take the testing procedures according to the
manual and check if the temperature regulator works properly.
When the machine fails to start due to the room temperature, the following procedures can be taken
to do the compulsive running. The function is not provided for the type with remote control.
• Set the RWV05 wired controller to refrigerating/heating mode, press "ON/OFF" button for 10
seconds to enter into the compulsive refrigerating/heating mode. Repress "ON/OFF"button to quit
the compulsive running and stop the operation of the air conditioner.
Fault Remedies
When any fault appears, consult the fault code of line control or the flashing times for LED5 of
computer panel of indoor units/health lamp of receiving window of remote control and find out the
faults as shown in the following table to remove all faults.
Indoor Unit Faults
PCB LED5(lndoor Units)/
Failure code at
wired controller
01
02
03
04
05
06
07
08
09
12
14
18
20
Receiver Timer Lamp
(Remote Controller)
1
2
3
4
5
6
7
8
9
12
14
18
20
check if the installation place meets the requirement
check if there is too much noise
check if the connecting line is fastened
check if the connectors for tubing are heat insulated
check if the water is drained to the outside
check if the indoor units are positioned
Fault Descriptions
Fault of indoor unit ambient temp. transducer TA (Tas)
Fault of indoor unit pipe temp. transducer TC1
Fault of indoor unit pipe temp. transducer TC2
Fault of indoor unit pipe temp. transducer TC22
Fault of indoor unit EEPROM
Fault of communication between indoor & outdoor units
Fault of communication between indoor unit and wired
control
Fault of indoor unit float switch
Fault of duplicate indoor unit address
Fault of indoor unit 50Hz Zero-crossing
Fault of indoor unit DC motor
BS valve box or 4WV switch failure
Corresponding faults of outdoor units
20
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