Daikin RZQ100B8V3B Service Manual page 196

Error Codes: Indoor Units
1
Troubleshooting
3 3
4
5
Caution
3–48
connections of X20A
Check indoor unit
Be sure to turn off power switch before connect or disconnect connector, or parts damage may be
occurred.
Check the
and X26A.
Are
X20A and X26A
properly
No
connected?
Yes
Unplug X26A
and switch the
power supply on.
Check the voltage
between pins 1
and 3 of X26A.
Is
there about
No
12 VDC?
Yes
fan motor and
motor wiring.
Connect
X20A and X26A
correctly.
Replace indoor
unit PCB.
Part 3 – Troubleshooting
ESIE05-03