Table 2: Start-Up Error Codes
Table 3: Operating Error Codes
Edition Date: 7/2020
Catalog No.: QSG-DGAPA-01
Replaces: New
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Manufacturer reserves the right to change, at any time, specifications and designs without obligations.
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ERROR AND STATUS CODES
6
Indicator Light
Code
Explanation
Possible Cause
Recommended Action
Two flashes
Filter ground circuit fault
No filter installed
Place filter in air purifier
Filter installed
incorrectly
Install filter in correct orientation as
indicated by airflow direction arrows on
cabinet and filter
Wrong type of
filter installed
Install a genuine air purifier
replacement filter
Wet filter
Call service to locate and eliminate the
source of water on the filter and replace
the filter with a new filter
Damaged filter
contact spring on
door assembly
Verify that filter contact springs mounted on
door are properly contacting the aluminum
contact pads on the filter and not contacting
the cabinet or door back; if springs are
broken or damaged replace the
door assembly
Rapid flashing
(five flashes per
second)
LED flashes for 10 seconds
when AC power is turned on
indicating a previously stored
error code; code will be
displayed after 10 seconds;
purifier will not operate until
cause of error condition is
rectified and purifier is reset
An error code was
registered in the
purifier controls prior
to the purifier being
turned off
The purifier controls may be reset during
the 10 seconds in which the LED is
flashing rapidly; see the Reset Procedure
on previous page; if the problem persists,
follow the actions recommended in Table 3
for the stored error code or call service
Indicator Light
Code
Explanation
Possible Cause
Recommended Action
Four flashes
Ionizer/filter
current imbalance
Dirty Filter Enhancement Module
(FEM)
Clean/service air purifier unit
Damaged FEM
Replace the filter enhancement modules
Five flashes
Over-current fault
Excessively dirty damaged FEM
and/or filter
Clean/service air purifier unit
Wet damaged FEM and/or filter
Call service to locate and eliminate the
source of water in the air purifier, Verify
that the purifier FEM and cabinet are clean
and replace filter with a new filter
Damaged filter
Replace the filter element
Damaged FEM
Replace the filter enhancement module
Foreign object inside air purifier Remove foreign object from air purifier and
ensure purifier is clean and undamaged
Six flashes
Arc detected
Damaged filter
Replace the filter element
Damaged FEM
Replace the filter enhancement module
Foreign object inside air purifier Remove foreign object from air purifier and
ensure purifier is clean and undamaged
