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14-5. Simple Check Method for Main Parts
14-5-1. Indoor unit
No.
1
Part name
Temperature sensor (Ta)
Heat exchanger sensor (Tc)
Heat exchanger sensor (Tcj)
Check procedure
Measure the resistance value with tester by removing the connector.
(Normal temperature)
Normal value
lMeasure the resistance value of each winding coil with tester.
lFor P.C. board side, proceed to [11 error] of “Troubleshooting procedure for each
check code”.
10 kΩ to 20 kΩ
Refer to Characteristics table.
Measure the resistance value of each winding coil with tester.
(Under normal temperature 25°C)
Louver motor
MP35EA12
Position
Between 1 and 2
Between 1 and 3
Between 1 and 4
Between 1 and 5
Resistance value
130 ± 40Ω
Indoor fan motor
(ICF-340-30-1)
Position
Between
(Black) and
(Red)
Between
(Black) and
(White)
Between
(Black) and
(Yellow)
Between
(Black) and
(Blue)
Resistance value
∞ (MΩ)
27 to 47 kΩ
140 to 280 kΩ
∞ (MΩ)
2
3
Red
Black
White
Yellow
Blue
6
5
4
3
1
6
5
4
3
1
6
5
4
3
1
6
5
4
3
2
1
Brown
Red
Orange
Yellow
Pink
Blue
6
5
4
3
2
1
6
5
4
3
2
1
Circuit