CARE AND MAINTENANCE
[ FrostPrevention6f IndoorUnit I
When the Unit is operated at low ambient temperature,
frost may be appeared on the indoor coil. When the
indoor coil temperature is below 32°F,the microcomputer
makes the compressor stop to protect the unit from the
frost.
I NormalOperation ]
Any of the followings can occur during normal operation.
• A sound like a "GURGLE" can sometimes be heard
during operation or when the unit stops.
- It is the sound of refrigerant flowing through the unit.
• The bad smells come from the unit.
- Smells such as smoke or cosmetics can accumulate
while room air circulates through the unit.
- Cleaning filters will reduce this problem.
• Outdoor fan does not rotate during heating operation.
- The unit is in defrost mode.
• UNIT ON lamp on the indoor unit display flash and wind
not comes from the unit.
- It indicates malfunction of the unit and makes the
compressor be turned off.
• A "BAK-BAK" sounding noise can be sometimes
heard during operation or when the unit turns on.
- It is the sound of plastic expansion due to abrupt heat
change.
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