Troubleshooting Guide; Filter Replacement - Guardian AC4020 Use & Care Instructions Manual

CLEANiNG & MAiNTENANCE
e. Reattach the Rear Cover of the unit
and securely latch into place.

FiLTER REpLACEMENT

To maintain the performance of the air cleaner, it is recommended that the filter be replaced about
every 6 months. The replacement requirements will vary depending on usage and environmental
conditions.
1. It's time to replace the filter when the white HEPA cartridge portion has changed from
white to grey or black.
oR
2. A filter date wheel is also built into the rear of the unit
to track your filter changes. Simply set the wheel 6 months
ahead from when it is replaced as a reminder. The wheel is
marked with the months of the year.
Check out our on-line Filter Reminder
Check out our on-line Filter Reminder
and Replacement program.
and Replacement program.
www.guardiantechnologies.com
www.guardiantechnologies.com
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TRoubLEShooTiNG GuidE

pRobLEM SoLuTioN
Unit does not operate. Check that the unit is plugged in.
Call Customer Service 1.866.603.5900.
Unit shuts off unexpectedly. Check that the unit is plugged into a working
electrical outlet.
Check that the HEPA Filter is firmly in place.
Check that the Front Cover is latched firmly in place.
Call Customer Service 1.866.603.5900.
No air circulating from unit. Unplug unit. Check Pre-Filter/Charcoal and HEPA Filters.
Check if the plastic bag containing the filter has
been removed.
Clean Pre-Filter/Charcoal if necessary.
Replace HEPA Filter if necessary.
Increase in noise level. Make sure the filters are clean. Replace if necessary.
An unpleasant odor is emitted Make sure the filters are clean. Replace if necessary.
from the unit.
AiR CLEANiNG SYSTEM
REpLACEMENT pARTS
Replacement Combination
Filter A: (FLT4010)
Please contact Customer Service at 1.866.603.5900 or visit us at
www.guardiantechnologies.com to purchase a replacement filter.
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