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Vornado AC550 Air Purifier Manual

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16 English
TROUBLESHOOTING
POSSIBLE CAUSE AND SOLUTIONPROBLEM
Unit is not plugged in. Plug power cord into electrical outlet.
Front Panel may not be properly installed. Remove and reinstall the Front Panel to assure proper
placement. Refer to FILTER REPLACEMENT.
Household circuit breaker / ground fault interrupter has tripped or blown a fuse. Reset circuit breaker /
ground fault interrupter, or replace fuse. For assistance, contact a licensed electrician.
Unit is damaged or in need of repair. Cease usage and unplug. Contact Consumer Service for assistance.
Unit set to a low speed setting. Adjust to a higher speed setting.
Debris build-up on lter. Check and replace Filters.
Airow is blocked. Remove obstruction.
There may be too much light in the room. Either manually turn the unit to low speed for minimal sound
or darken the room.
Sleep Mode may be selected. When in low light or no light, the unit will only operate at low speed.
This will override Automatic Dust Sensing Mode. In regular light, the unit will return to Automatic Dust
Sensing Mode operation.
The Dust Sensor may need to be cleaned to accurately read dust levels. See CLEANING AND
MAINTENANCE for complete instructions.
Unit fails to power on.
Airow is weak or slow.
Sleep Mode is not working.
Automatic Dust Sensing
Mode is not working.
… 16


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