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ELECTRICAL WIRING
Alarm Detect Function
(1) Each alarm code is composed of 2 digits for 1 set, or 4 digits for 2 sets.
(2) If the alarm code is composed of 1 set(2 digits)：
(3) If the alarm code is composed of 2 sets(4 digits)：
(4) If the system is operated under abnormal conditions, the alarm code will be showed as digits by the
indicator.
Alarm Code
—
03 Detect of CPU Error.
Reverse or Phase Lack of Main Power
—
05
Source.
Overheat forCompressor1.
C1
(Internal thermostat for compressor1 acted)
08
Overheat for Compressor2.
C2
(Internal thermostat for compressor2 acted)
—
19 Overcurrent for Indoor Fan Motor.
—
31 No Capacity Setting of Unit.
C1
Overcurrent for Compressor Motor1.
39
C2
Overcurrent for Compressor Motor2.
13
Description
Check Item
The CPU of PCB Self-Checking.
(no need to check the item of unit)
Check the connection of main power supply.
(Refer to Main Power Wiring Procedures)
Check the Internal Thermostat of
Compressor1.
Check the Internal Thermostat of
Compressor2.
Check the Current for Indoor Fan Motor.
Check the Setting of DSW1 Switch.
(Refer to Factory Setting of DIP Switch)
Check the Current for Compressor Motor1.
(Refer to Troubleshooting)
Check the Current for Compressor Motor2.
(Refer to Troubleshooting)
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