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Normal Sounds
When your air conditioner is operating normally, you may hear sounds such as:
• Droplets of water hitting the condenser, causing a pinging or clicking sound. The water droplets
help cool the condenser.
• Air movement from the fan.
• Clicks from the thermostat cycle.
• Vibrations or noise due to poor wall or window construction.
• A high-pitched hum or pulsating noise caused by the modern high-efficiency compressor
cycling on and off.
MAINTENANCE
Cleaning and Maintenance
Please always wait 3 minutes when turning unit off and then on again, and when changing from
cool to fan and back to cool. This prevents the compressor from overheating and possible circuit
breaker tripping.
To ensure optimal operation and maintain a good appearance, clean your air conditioning occa-
sionally.
Be sure to unplug the unit before cleaning to prevent shock or fire hazards.
Do not use volatile liquid to clean the air conditioner.
Air Filter Cleaning
The air filter should be checked at least once a month to see if cleaning is necessary. Trapped
particles in the filter can build up and cause an accumulation of frost on the cooling coils.
To clean air filter:
1. Open the front panel and pull toward you both sides firmly.
2. Remove the filter.
3. Use a dishwashing liquid detergent and warm water to wash
filter. Rinse filter thoroughly. Gently shake excess water from
the filter. Be sure that the filter is dry before replacing. You may
also, very genteelly vacuum the filter to clean it.
4. Install the filter and close the panel cover securely.
