P05 Power Source Error - Panasonic 2WAY Multi Technical & Service Manual

P05 Power Source Error

Error detection method
An error is determined when the power source status meets the following condition.
• Open phase
• Instant power failure exceeding 100ms (5 times/h)
Troubleshooting
1
Are all power supply voltages AC 200 V?
1-1
Power
(Measure between terminal boards R-S, S-T and T-R.)
supply
Is the power supply voltage applied to all of the board-in
1-2
connectors (CN005 to CN007) on the fi lter board AC 200?
Check for faulty connections and defective parts in the power supply wiring between the
1-3
terminal board and fi lter board → Repair
Turn the power off and then on again and check for
1-4 reoccurrence.
Is the alarm triggered again?
There may have been multiple momentary power failures.
1-5 Check the power supply wiring connections (for poor contacts), and if no error is found, keep
an eye on the situation.
● 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–85
Yes 1-2
No Check power supply
Yes 1-4
No 1-3
Replace the outdoor
Yes
unit's power board
No 1-5