A23 Crankshaft Angle Sensor Error; A24 Camshaft Angle Sensor Error - Panasonic 2WAY Multi Technical & Service Manual

A23 Crankshaft Angle Sensor Error

A24 Camshaft Angle Sensor Error

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.
Troubleshooting
1
1-1 Does the starter operate?
Crank angle
sensor trouble
Check starter S terminal for short circuit or ground fault,
1-2
and starter B terminal for broken wire.
Poor connection or broken wire in crank angle sensor
1-3
wiring?
Replace outdoor main board.
1-4
If NG, replace sensor.
2
Poor connection or broken wire in cam angle sensor
2-1
Cam angle
wiring?
sensor trouble
Replace outdoor main board.
2-2
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)
IV–24
Yes 1-3
No 1-2
OK Replace starter
NG Repair wiring
Yes Repair wiring
No 1-4
Yes Repair wiring
No 2-2