Daikin VRV X RXQ6-48ANR Series, Service Manual

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Troubleshooting by Error Code SiME341909EA
164 Part 6 Service Diagnosis
5.7 Indoor Fan Motor Abnormality
5.7.1 Indoor Fan Motor Abnormality (FXFSQ-AR)
Applicable
Models FXFSQ-AR
Error Code
A6-10
Method of Error
Detection

Detection from the current flow on the fan PCB (A1P)
 Detection from the rotation speed of the fan motor in operation
 Detection from the position signal of the fan motor
 Detection from the current flow on the fan PCB when the fan motor starting operation
Error Decision
Conditions
 An overcurrent flows
 The rotation speed is less than a certain level for 6 seconds.
 A position error in the fan rotor continues for 5 seconds or more.
Supposed
Causes
 Clogged foreign matter
 Disconnection of fan motor connectors
 Fan motor lock
 Defective fan motor
 Defective indoor unit PCB
Troubleshooting
Connect the connector correctly.
Turn OFF the power supply and
wait for 10 minutes.
NO
Turn ON the power supply and check
the HAP lamp on the indoor unit
control PCB (A1P).
YES
NO
Replace the indoor fan motor
(M1F).
NO
YES
NO
Replace the indoor fan motor
(M1F).
Resistance
between UVW of fan
motor is unbalanced, or
short-circuited.
YES
The fan
motor connector (
∗
1) is
connected to the indoor unit
control PCB
(A1P).
Remove the foreign matter.
YES
There is a foreign
matter around the fan.
It is
possible to rotate
the fan manually when the
fan motor connector is
disconnected from the indoor
unit control PCB
(A1P).
A
Caution Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
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