Troubleshooting By Led Indications; Troubleshooting By Led On The Indoor Units - Daikin SkyAir Service Manual

Troubleshooting by LED Indications

4. Troubleshooting by LED Indications

4.1

Troubleshooting by LED on the Indoor Units

Foreword Troubleshooting can be carried out by service monitor LED (green). (Blinks when normal)
4 : LED on / 7 : LED off / 5 : LED blinks / — : No connection with troubleshooting
Notes: 1. When the INSPECTION/TEST button of remote controller is pushed, INSPECTION display
2. In the INSPECTION mode, when the ON/OFF button is pushed and held for 5 seconds or
3. Operation halts due to malfunction depending on the model or condition.
4. If LED-B is off, the transmission wiring between indoor and outdoor unit may be incorrect or
5. Troubleshoot by turning off the power supply for a minimum of 5 seconds, turning it back on,
152
Microcomputer Transmission
Normal Monitor Normal Monitor
HAP (LED-A) HBP (LED-B)
5
5
4
7
blinks entering INSPECTION mode.
more, the aforementioned malfunctioning history display is off. In this case, after the
malfunction code blinks 2 times, the code display turns to "00" (=Normal) and the unit No.
turns to "0". The INSPECTION mode automatically switches to the normal mode (set
temperature display).
disconnected. Before performing the previously described troubleshooting, check the
transmission wiring.
and then rechecking the LED display.
Indoor unit normal → Outdoor unit trouble shooting
5
Incorrect transmission wiring between indoor and
4
outdoor unit
If outdoor unit's LED-A is off, proceed outdoor unit's
7
trouble shooting. If outdoor unit's LED-A blinks, failure of
wiring or indoor or outdoor unit P.C board ass'y. (Note 4)
— Failure of indoor unit PC board ass'y (Note 5)
Malfunction of power supply or failure of PC board ass'y
or broken transmission wire between indoor and outdoor
unit. (Note 5)
Contents/Processing
Troubleshooting
SiBE28-804