Diagnosis By Led; Indoor Unit - Daikin AT12BV1LS Pocket Manual

Diagnosis by LED

1. Diagnosis by LED

1.1 Indoor Unit

Wall Mounted Type
Indicator lamps
Operation lamp (green)
2
The operation lamp flashes when any of the following
errors is detected.
1. When a protection device of the indoor or outdoor unit
is activated or when the thermistor malfunctions,
disabling equipment operation.
2. When a signal transmission error occurs between the
indoor and outdoor units.
In either case, conduct the diagnostic procedure
described in the following pages.
ON
OFF
Operation lamp (green)
Indicator lamps
Si10-417
Service Diagnosis