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Phenomenon
Cause
Description
Not appear “
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The power will not be supplied to MA remote controller after
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Not disappear of “HO”
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Main setting: SW1 ON
Sub setting: SW1 OFF
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Appear “
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The units cannot operate if transmission line is incorrect.
Operates or stops the unit without push
the remote controller button
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-
mission lines, and incorrect polarity.
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* Do not measure the resistance of transmission lines.
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Operation procedure
Turn main power supply on before 12 hours or more.
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1
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2
Start test run by the remote controller.
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3
Stop the unit by the remote controller.
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Test run complete.
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Notes: 1 An error code will be appeared on the remote controller if the Fault lamp on the indoor unit is lit during test run. Refer to the Outdoor Units Installation Manual
for details of error codes.
2 Set DIP SW as following to ON if operation cannot be continued at low-load during test run. Always set DIP SW as following to OFF after completing test run
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Item
Operation details
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Measures required
1
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Operate from external input.
Air-conditioner operates or stops.
Remote controller display changes.
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Item
Operation details
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Measures required
1
Operation status
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from remote controller.
Device connected to output termi-
nal responds.
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2
Fault
Stop air-conditioner at fault.
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-
tioner.
