FAQ

• CDAP5500
• AC5900
• AC5109W
• AC4900
• AC4300
• CDAP4500
• AC9200
• AC5109
• AC4870
• GG1000
• GG1100
• EV9102
• GG3000
The following GermGuardian air purifiers and air sanitizers are designed to last the lifetime of
the product:
• AC4020
• AC3900
• AC4000
• LW9
• LW18
If the bulb in one of these models is not working, please contact Customer Service.
How do I reset the UV-C light after replacing the filter?
AP2200, AP2800, AC4820, AC4825, AC5000, AC5900 - Hold down the HEPA filter reset
button for 5 seconds after inserting new filter.
AC4175, AC4700, AC4900, AC4300, AC5300 - Hold down the UV button on the unit for 5
seconds after inserting new filter.
AC4870, CDAP4500, CDAP5500, AC5350 - Hold down the timer button for 5 seconds after
inserting new filter.
AC4200 - Hold down the power button for 5 seconds after inserting new filter.
AC5250PT - Insert pen tip into HEPA Reset area on control panel after inserting new filter.
AC5600 - Reset the filter indicator by holding the fan speed button for 5 seconds after inserting
new filer.