1. Connector connection failure 2.Thermistor failure 3. Main PCB failure
Test 1 : Check connection of Connector
Check if connector is removed.
Check erroneous connection.
Check if thermistor cable is open.
>>Upon correcting the removed connector or miss-wiring, reset the power.
Test 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.
OK
OK
Test 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.
Trouble shooting 30
OUTDOOR UNIT Error Method:
3-Way Valve Thermistor Error
Outdoor unit main PCB circuit
3 Way valve temperature thermistor
When 3 Way valve temperarture thermistor open or short-circuit is detected
at power ON or while running the compressor.
Detective Actuators:
Detective details:
Indicate of Display:
Forecast of Cause:
02-45
6.278.7012.30
26.3440.0162.55100.91168.60
Resistance Value
(k )
807060
40
17.79
503020
100
292.91531.561013.11
-10
-20-30Temperature (°C)
Resistance Value
(k )
Temperature (°C)
Indoor Unit
Outdoor Unit
Operation lamp : 7 time Flash
ERROR CODE : [E : 76]
Timer lamp: 6 time Flash
Monitor
A B C D E F
7
: Light ON : Light OFF n : n time blinking
6
AO*G45LBLA6 roFAO*G36LBLA5 roF
CN64
CN65
CN66
BLACK
BLACK
VALVE THERMISTOR B, A
VALVE THERMISTOR D, C
VALVE THERMISTOR F, E
2-WAY VALVE A
3-WAY VALVE A
2-WAY VALVE B
3-WAY VALVE B
2-WAY VALVE C
3-WAY VALVE C
2-WAY VALVE D
3-WAY VALVE D
2-WAY VALVE E
3-WAY VALVE E
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
2-WAY VALVE F
BLACK
BLACK
BLACK
BLACK
3-WAY VALVE F
BLACK
BLACK
CN64
CN65
CN66
BLACK
BLACK
VALVE THERMISTOR B, A
VALVE THERMISTOR D, C
VALVE THERMISTOR E
2-WAY VALVE A
3-WAY VALVE A
2-WAY VALVE B
3-WAY VALVE B
2-WAY VALVE C
3-WAY VALVE C
2-WAY VALVE D
3-WAY VALVE D
2-WAY VALVE E
3-WAY VALVE E
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
To Next Page
Loading...
Need help?
General
