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73
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'14 • KX-T-222
9. SYSTEM TROUBLESHOOTING PROCEDURE
9.1 Basics of troubleshooting
Basic troubleshooting is to check/analyze/save data by connecting the Mente PC.
Whenever arriving at the site, always connect the Mente PC before starting work.
Method of error data analysis (Basic procedure)
• Identify whether particular error occurred during operation or stopping.
• Is it caused by the installation conditions of outdoor/indoor unit? (Refrigerant quantity, pipe length, short-circuit,
clogged filter, etc.)
• Isn’t there any beginner’s mistake at the installation? (Wrong address, mistake in piping or wiring, etc.)
• Is the failure related to any hardware (parts)? (SV main body, coil, capillary, check valve, sensor, etc.)
• Is it a major component?
Compressor, inverter PCB and outdoor DC fan motor
• Is it a failure of electrical component
Error on
indoor unit or
outdoor unit?
Indoor unit
Outdoor unit
Is the remote
control
connected?
Was the power
source reset after the
error occurred?
Check and write down
the momentary data
(retained in the remote
control) just before the
error occurred
Connect the Mente PC
and restart operation
Connect the Mente PC
and restart operation
Save the data for 30
minutes before the error
occurred in Mente PC
Save the momentary
data just before the error
occurred in Mente PC
Connect the Mente PC
and restart operation
Connect the Mente PC
and restart operation
NO
NO
YES
YES
(Refer to outdoor unit service manual.)