Table of Contents
Advertisement
Compressor Stopped Special Instruction
Keep the main power supply ON
Open up the outdoor unit's top panel
Notice the Green LED on the outdoor P.C. board
Blink
1
Outdoor ambient sensor error
2
Outdoor coil sensor error
Discharge sensor error / Compressor overheat
3
indication
4
DC compressor feedback
5
Communication error
6
Over current
7
No load
8
Over / under voltage
9
DC compressor start failure
10
Cooling overload
11
Defrost
12
IPM Protection
13
EEPROM read error
14
EEPROM write error
15
DC fan motor no feedback
*If the problem persist, contact your local delaer straight away.
Normal Running Mode Condition
If the air conditioner unit has no faulty indication and the compressor is running at normal mode, the
outdoor P.C. board's LED indication will blink at a slower paste. The table below shows the significant
meaning of different running mode and limitation for this air conditioner unit.
One must not attemp to see the LED indication blinking unless intructed to do so.
Fault Indication
Blinks
1
Normal running, with no limitation
2
Voltage limit
3
Heating unit : Indoor cooil temperature limit
4
Total current limit
5
Discharge temperature limit
6
Cooling unit : Indoor coil temperature limit
7
Indoor fan control
8
Outdoor frequency adjustment
DO NOT TOUCH ANY OF THE WIRES
INSIDE THE UNIT!
Count the number of blinks indicated
Corrective Action
Check ambient sensor wire and connection
Check coil sensor wire and connection
Check discharge sensor wire and connection /
Not enough refrigerant / Indoor overload
Call local dealer
Check interconnection communication wire
Call local delaer
Check compressor wire and connection
Check power supply
Call local dealer
Check whether outdoor unit is blocked or not
Wait till defrost is over then restart
Check IPM
Change EEPROM
Change EEPROM
Check fan motor wire connection
Blinking indication
13
by the LED
Advertisement
Table of Contents
