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Troubleshooting
SiMT041311E
127
Service Diagnosis
Diagnose by the error code.
Diagnose by the error code.
Replace the outdoor unit
PCB.
(R19678)
Blink
YES
ON or OFF
NO
Is an error code
displayed on the remote
controller?
From the previous page
Operation lamp blinks?
Match the compatible
models.
Replace the batteries.
Match the address.
NO
Is the indoor unit
compatible with the
outdoor unit?
YES
Is there a sound
indicating that a signal
from the remote controller
is received?
YES
YES
NO
NO
NO
Does the address of
the remote controller
match with that of the
indoor unit?
YES
Are the batteries in the
remote controller flat?
Make sure that the infrared ray is
radiated from remote controller.