Troubleshooting by Error Code
SiAF341904E
226
Part 6 Service Diagnosis
Troubleshooting
For the models equipped with 2 fan motors, check the fan
motor M1F or M2F applicable to the error code
E7
while in
monitor mode of the outdoor unit.
Check in Monitor Mode
There is
foreign matter around the
applicable fan.
Remove the foreign matter.
YES
Check for the connections of all fan motor connectors.
NO
Turn OFF the power supply, and then wait for a period of 10
Some connectors are
disconnected.
Insert the connector.
YES
NO
NO
There is a relay
connection error.
Correct the connection of the
connector.
YES
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
A
Check for any wire connection errors in 2 units of fan motors.
• Fan motor 1: Power supply cables and signal cables are all white.
• Fan motor 2: Power supply cables and signal cables are red
on the PCB side and white on the motor side.
Check for Connection of Connector
Check for Colors of Relay Connectors
There is
no continuity
across the fuse
(F101U) on the fan
PCB.
(
#
1)
Replace the fan PCB. (
#
1)
#
1
RXQ6-12A: A4P
RXQ14-20A: A4P, A7P
YES
The fan
cannot be
rotated by hand when
disconnecting the
connector from the
fan motor.
Replace the relevant fan motor.(
#
2)
#
2
RXQ6-12A: M1F
RXQ14-20A: M1F, M2F
YES
NO
Resistance
between the fan
motor power supply
cable terminal and the motor
frame (metallic part) is
not more than 1
M
Ω
.
Replace the relevant fan motor. (
#
2)
YES
NO
NO
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