Daikin SkyAir RZR-P Series Service Manual page 130

Troubleshooting by Remote Controller
Troubleshooting
1. Pull out and insert the connector once and check it is absolutely connected.
Note:
2. Method to check transmission part of indoor unit PCB.
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Is the
connector between
indoor unit PCB (A1P)
and fan PCB (A2P)
accurately
connected?
(∗1)
YES
Confirm the condition of
transmission on indoor unit
PCB using field setting mode.
(∗2)
Under above
field setting mode,
installation position
01
is " ".
YES
Connect the connector X70A
and turn ON the power again.
Error is
displayed again.
NO
(1) Turn OFF the power and remove the connector X70A of indoor unit PCB (A1P).
(2) Short circuit X70A.
(3) After turning ON the power, check below numbers under field setting of remote controller.
(Confirmation: second code No. at the condition of first code No. 21 on mode No. 41)
Determination 01: Normal
Other than 01: Transmission defect on indoor unit PCB
 After confirmation, turn OFF the power, take off the short circuit and connect X70A back
to original condition.
NO
NO
YES

SiUS281117
Connect the connector
accurately.
Replace the indoor unit PCB
(A1P).
Replace the fan PCB (A2P).
Connect it and operate (It is
possible to have a cause,
such as instantaneous
blackout)
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