Daikin SkyAir Service Manual page 183

Troubleshooting by Remote Controller Display / LED Display
Troubleshooting
∗
1. Pull out and insert the connecter once and check it is absolutely connected.
∗
2. Method to check transmission part of indoor PC board.
172
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Is the connector
between indoor PC board (A1P) and
PC board for fan (A2P) accurately
connected? (*1)
Confirm the condition
of transmission on
indoor PC board
using local installation
mode. (*2)
Under above local
installation mode, installation
position is "01".
Connect the
connecter X70A and
turn on the power
again.
"C1"
Malfunction
breaks out
again.
NO
Turn off the power and remove the connecter X70A of indoor PC board (A1P).
Short-circuit X70A.
After turning on the power, check below numbers under local setting remote control.
(Confirmation: Setting position NO. at the condition of setting switch No. 21 on mode No.
41)
Determination 01: Normal
Other than 01: Transmission defect on indoor PC board
★
After confirmation, turn off the power, take off the short-circuit and connect X70A back to
original condition.
NO
NO
YES
↓
SiBE28-804
Connect the connector accurately.
Replace indoor PC board (A1P).
Replace PC board for fan (A2P).
Connect it and operate (It is
possible to have a cause, such
as instantaneous blackout)
Troubleshooting