Daikin VRV II RXYQ5MATL, Service Manual, Page: 201 / 331

Troubleshooting by Indication on the Remote Controller Si39-504
190 Troubleshooting
3.18
“
E7
”
Outdoor Unit: Malfunction of Outdoor Unit Fan Motor
Remote
Controller
Display
E7
Applicable
Models RXYQ5MA~48MA
Method of
Malfunction
Detection Malfunction of fan motor system is detected according to the fan speed detected by hall IC
when the fan motor runs.
Malfunction
Decision
Conditions
„
When the fan runs with speed less than a specified one for 15 seconds or more when the fan
motor running conditions are met
„
When connector detecting fan speed is disconnected
„
When malfunction is generated 4 times, the system shuts down.
Supposed
Causes
„
Malfunction of fan motor
„
The harness connector between fan motor and PC board is left in disconnected, or faulty
connector
„
Fan does not run due to foreign matters tangled
„
Clearing condition: Operate for 5 minutes (normal)
Troubleshooting
Connector
of fan motor is
disconnected.
YES
NO
NO
NO
Harness connector
between compressor
inverter PC board and fan
inverter PC board
(A2P, A3P) is
disconnected.
YES
YES
Can the fan
be turned smoothly
with hand after disconnect
the connector of
fan motor?
Is there any
obstacle around
the fan?
YES
NO
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Connect the connector.
Connect the harness
connector.
Remove the obstacle.
Replace the fan motor of
outdoor unit.
(V3076)
1A