IV–26A26 Flameout Errorc Error detection method• An error is determined when the engine revolution speed fluctuates widely during engine operation. Theengine is stopped and an error flag is set.A flameout error is assumed when this flag has shut down the engine 5 consecutive times in 1 hour.d Troubleshooting1Ignition systemerror1-1 Are sparks emitted properly? Yes 1-2No 1-31-2 Proper ignition timing? OK 2-1NG Adjust timing1-3Any poor connection/contact/crimping and broken wiresin wiring between the outdoor main board connector 6P(white) CN010, 6P (black) CN011 and each IG coil (igniter)?Yes Repair wiringNo 1-41-4 Ignition plug working properly? Yes 1-5No Replace ignition plug1-5 Try replacing the IG coil (igniter). If fault persists after replacement, replace the outdoormain board.2Engine uniterror2-1 Measure compression (See A06 5-1). OK 3-1NG 2-22-2 Wash valve and adjust valve clearance. If still NG, replace engine head.3Fuel regulatingsystem error3-1 Check operation of fuel gas regulating valve and throttle(step motor). Operating properly?Yes 3-2No Replace3-2 Inspect zero governor. Operating properly? Yes 3-3No Restore3-3 Air intake occurring? Check rubber plug on intake manifold, etc.● 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• 1-21-2 See Chapter 5 for timing adjustment.
