Panasonic 2WAY Multi - A23 Crankshaft Angle Sensor Error; A24 Camshaft Angle Sensor Error

IV–24
A23 Crankshaft Angle Sensor Error
A24 Camshaft Angle Sensor Error
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Error detection method
When input from the sensor meets the following conditions, an error is determined upon 5 consecutive
occurrences in 1 hour.
• When starter current was detected during cranking, but crank angle sensor input is not detected for 2
continuous seconds.
• When starter current was detected during cranking, but cam angle sensor input is not detected for 3
continuous seconds.
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Troubleshooting
1
Crank angle
sensor trouble
1-1 Does the starter operate?
Yes 1-3
No 1-2
1-2
Check starter S terminal for short circuit or ground fault,
and starter B terminal for broken wire.
OK Replace starter
NG Repair wiring
1-3
Poor connection or broken wire in crank angle sensor
wiring?
Yes Repair wiring
No 1-4
1-4
Replace outdoor main board.
If NG, replace sensor.
2
Cam angle
sensor trouble
2-1
Poor connection or broken wire in cam angle sensor
wiring?
Yes Repair wiring
No 2-2
2-2
Replace outdoor main board.
If NG, replace sensor.
● For work procedure for replacing outdoor main board, see “5. Reference Document”.
● For board and Electrical Wiring Diagram, see Chapter 6.
• Outdoor main board: page VI-2
• Outdoor power board: page VI-3
• Converter board: VI-4
• Indoor control board for DC motor models: page VI-5
• Outdoor Unit Electrical Wiring Diagram: page VI-6 * Reference (Electrical Wiring Diagram B - F-1 - 2)
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