RGAP(A,B)XX: Installation and User Instructions
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
10
ERROR and STATUS CODES
Table 1 – Operating Status Codes
INDICATOR LIGHT
CODE
EXPLANATION
POSSIBLE CAUSE
RECOMMENDED ACTION
OFF
No incoming AC power
to
Return Air Purifier
control electronics
Normal operation when airflow is not present for
models without flow sensor due to AC power to
purifier being off at furnace control board (EAC
terminals)
ON/OFF power switch turned to OFF
Turn purifier power switch to ON position.
Power to entire system is off
(furnace and Return Air Purifier)
Check that the HVAC system is switched on.
Blown fuse or tripped circuit
breaker for HVAC system
Replace fuse or reset circuit
breaker. Call for service if problem reoccurs.
Misaligned or damaged purifier door
Insure that door is undamaged and properly
installed on purifier cabinet.
Damaged or disconnected incoming power wiring
Call for service.
ON (continuously)
Return Air Purifier on
Normal operation when airflow is present
FLASHING
(1 flash every 4
seconds)
Standby Mode
Normal operation when airflow is not present for
models with flow sensor
Ions detected in airflow due to missing replaceable
filter element
Place filter in air purifier.
Debris is covering airflow sensor (for models
including an airflow sensor)
Make sure flow sensor is clean and unobstructed.
Flow sensor is damaged (for
models including an airflow sensor)
Replace flow sensor, available as replacement kit
(KIT160000).
Flow sensor bypass assembly is damaged (for
models without an airflow sensor)
Replace flow sensor bypass
assembly, available as
replacement kit (KIT161000).
One or more of the three airflow sensor contact
springs on purifier cabinet downstream rail are bent
or damaged
Replace flow sensor contact spring assembly,
included as part of the flow sensor kits (KIT160000
and flow sensor bypass kit KIT161000).
Table 2 – Start-Up Error Codes
INDICATOR LIGHT
CODE
EXPLANATION
POSSIBLE CAUSE
RECOMMENDED ACTION
2 FLASHES
Filter ground circuit fault
No filter installed
Place filter in Return 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 genuine Return 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 power supply
assembly are properly contacting the aluminum contact pads
on the filter and not contacting the cabinet or any metal on
the back of the power supply assembly. If springs are broken
or damaged replace the power supply assembly.
RAPID FLASHING
(5 flashes per
second)
LED Flashes for 10 seconds
when AC power is turned on
indicating a previously stored
error 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
section of this document for resetting the electrical controls. If
the problem persists, follow the actions recommend in Table
3 for the stored error code or call service.
