Specifications

SiBE04-624 Convenient Service Check Function
Service Diagnosis 137
1. Convenient Service Check Function
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Failure diagnosis with operation lamp
The operation lamp on the display of the indoor unit flashes when any of the following failure is
detected.
1. When a protection device of the indoor or outdoor unit is activated or when the thermistor
malfunctions and the machine does not work.
2. When a signal transmission error occurs between the indoor and outdoor units.
For detailed troubleshooting, refer to the following pages “Troubleshooting” (139~).
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Failure diagnosis by remote controller
With the wireless remote controller supplied with the unit, or sold separately, error codes by failure
diagnosis can be confirmed. (Press timer cancel button down for 5 seconds continuously.)
ARC447A series
1. Hold the timer cancel button down for 5 seconds, with the remote controller set toward the
indoor unit.
2. The temperature display on the remote controller changes to the error code display and a
long beep notifies this indication change.
<Note>
To cancel indication of error code, hold the timer cancel button down for 5 seconds.
The code display also cancels itself if the button is not pressed for 1 minute.
Multi-colored indicator lamp
(R5904)
E5
(R5075)
Timer cancel
button
(R5074)