Germguardian AC4900CA Troubleshooting Manual

PROBLEM
Unit does not operate.
Unit shuts off unexpectedly.
No air circulating from unit.
Increase in noise level.
Red light is flashing.
Blue UV-C light is flashing.
Trouble Shooting Guide
Check that the unit is plugged in.
Check that filter is in place.
Confirm that filter is Genuine Replacement Filter.
Check that unit is plugged into a working electrical outlet.
Check that filter is firmly in place.
Check that the Rear Cover is latched firmly in place.
Unplug unit. Check Pre-/Carbon and filters.
Clean Pre-/Carbon Filter if necessary.
Replace filter if necessary.
Make sure the filters are clean.
Replace filter and reset system.
Replace bulb and reset system.
SOLUTION
Call Customer Service.
Call Customer Service.
Replace if necessary.