IV–33E02 Remote Controller Transmission Failurec Error detection methodWhen the remote controller (controller) itself cannot transmit. Or, when a self-transmitted signal cannot beselfreceived or changes, an error is determined.• Breakdown of remote controller itselfd Troubleshooting1Remotecontrollergroup wiring1-1 Is this indoor unit group-controlled? Yes 1-2No 2-11-2 Any short-circuit or broken wires for remote controller group linkwiring 1 (white) and 2 (black)?Yes Repair wiringNo 2-12Indoorcontrolboard2-1 Is an option board (CN060) or wireless remote controller (CN041)connected to the indoor control board?Yes 2-2No 2-42-2Does E02 disappear several minutes after disconnecting saidconnector on the indoor control board? (When controlling with tworemote controllers and the wireless remote controller is the main, setthe other remote controller as the main).Yes 2-3No 2-42-3 Replace the removed option board or wireless remote controller operating unit, wiring and all.2-4 Short-circuit or misrouting in indoor unit remote controller wiring?Yes Repair wiringNo Replace indoorcontrol board● The designation (/) is used in the table to indicate indoor boards for DC and AC motor models.● There is no TEST pin on the indoor board for AC motor models.● See “5. Reference Document” for checking remote controller.● 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● See instructions packaged with servicing indoor board for procedure on replacing indoor control board.
