Trouble shooting 12
OUTDOOR UNIT Error Method:
Indicate or Display:
Detective Actuators: Detective details:
Forecast of Cause :
OKOK
OKOK
Compressor Thermistor Error
Outdoor Unit Main PCB
Compressor Temperature Thermistor
When Compressor Temperature Thermistor open or short-circuit
is detected at power ON or while running the compressor.
1. Connector connection failure 2. Thermistor failure 3. Main PCB failure
Check Point 1 : Check connection of connector
Check if connector is removed.
Check if connector is erroneous connection.
Check if thermistor cable is open.
>> Upon correcting the removed connector or mis-wiring, reset the power.
Check Point 2 : Remove connector and check thermistor resistance value
Thermistor characteristics (Approx. value)
If Thermistor is either open or shorted, replace it and reset the power.
Check Point 3 : Check voltage of Main PCB (DC5.0V)
Make sure circuit diagram of outdoor unit and check terminal voltage at thermistor (DC5.0V)
If the voltage does not appear, replace Main PCB.
02-14
Refer to error code table.
BLACK
BLACK
BROWN
BROWN
BROWN
BROWN
BLUE
BLUE
CN64
CN62
CN65
CN63
1 2 3
1 2 3
1 2 3
1 2 3
1 2 3 1 2 3
1 2 3 1 2 3
THERMISTOR
( DISCHARGE PIPE )
THERMISTOR
( HEAT EXCHANGER )
THERMISTOR
( OUTDOOR TEMP. )
THERMISTOR
( COMPRESSOR TEMP. )
18.327.1
20
41.163.980.5102130168Resistance value (k )
151050Temperature (°C )
12.6
30 5040 60
2.03.44.66.48.9Resistance value (k )
120100908070Temperature (°C )
Temperature (°F ) 32 41 50 59 68 86 95 122 140
Temperature (°F ) 158 176 194 212 248
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