A07 Fuel Gas Valve Error - Panasonic 2WAY Multi Technical & Service Manual

A07 Fuel Gas Valve Error

Error detection method
• An error fl ag is set when it is judged that the fuel gas valves did not close when engine operations were
halted (excluding when halted owing to malfunctions) and an error will be triggered when this occurs fi ve
consecutive times.
Troubleshooting
1 Set the STOP switch on the outdoor unit's main board to [STOP]
Circuit to completely halt operations of the outdoor unit. Is 180V DC being
board / Gas 1-1 applied between the outdoor unit's power board connector 7P (white)
solenoid CN041 No.1 (+) to No.3 (-), and between No.5 (+) to No.7 (-) when the
valve unit is halted?
Is the same problem as explained in 1-1 still occurring after the
1-2
outdoor unit's power board has been replaced?
● 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
IV–11
Yes 1-2
Replace the fuel
No gas solenoid
valve
Replace the
Yes outdoor unit's
main board
No End