IV–33
E02 Remote Controller Transmission Failure
Error detection method
When the remote controller (controller) itself cannot transmit. Or, when a self-transmitted signal cannot be
selfreceived or changes, an error is determined.
• Breakdown of remote controller itself
Troubleshooting
1
Remote
controller
group wiring
1-1 Is this indoor unit group-controlled?
Yes 1-2
No 2-1
1-2
Any short-circuit or broken wires for remote controller group link
wiring 1 (white) and 2 (black)?
Yes Repair wir ing
No 2-1
2
Indoor
control
board
2-1
Is an option board (CN060) or wireless remote controller (CN041)
connected to the indoor control board?
Yes 2-2
No 2-4
2-2
Does E02 disappear several minutes after disconnecting said
connector on the indoor control board? (When controlling with two
remote controllers and the wireless remote controller is the main, set
the other remote controller as the main).
Yes 2-3
No 2-4
2-3 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 wir ing
No
Replace indoor
control 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.
GHPtroubleshooting.indbIV‒33GHPtroubleshooting.indbIV‒33 2012/11/2611:20:082012/11/2611:20:08