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Troubleshooting by Remote Controller
Si20-701_B
139
Troubleshooting
Is the
contact of Q1L
open?
Are the
connectors
connected to the
outdoor unit
PCB?
NO
YES
Connect the
connector, and
operate the unit.
Replace the
outdoor unit
PCB.
YES
NO
Q1L fan
protection device
activation
Defective fan
motor, defective
capacitor, etc.
Does
the unit
operate normally
when remote
controller is
used?
YES
Momentary
power failure or
protection device
activated
previously.
Check refrigerant
system.
NO
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.