FILTRATION
FILTRATION
WWW.CLEANCOMFORT.COM
11
TROUBLESHOOTING
IO-AE14-5
1. Remove both cells from the air cleaner cabinet.
Replace the cabinet door.
2. Toggle the air cleaner’s orange power switch
ON
,
and turn the HVAC fan
ON
.
3. If the green performance indicator light is still
OFF
,
check the power board for an arc to ground at HV1
or HV2. Refer to Troubleshooting section ①.
4. If there is a good arc and the performance indicator
light is still
OFF
, then replace the light. Refer to Service
section A “Replacing a Performance Light”.
If the performance indicator light comes
ON
, check
the cells for a fault. Refer to Troubleshooting sections
④, ⑤, and ⑥.
5. If there is no arc, test the output voltage of the
transformer. Refer to Troubleshooting section ④.
If there is transformer output, replace the power
board. Refer to Service section B) “Replacing a
Power Board”If there is no transformer output,
check for output of the APS. Refer to Troubleshooting
section ③.
• If there is output from the APS, replace the trans-
former (refer to Service section C) “Replacing the
24 V Transformer”) and retest the power board for
an arc. Refer to Troubleshooting section ①.
• If there is no output from the APS, jumper terminals
3 & 4 on the APS and retest the output. If there is
APS output with the jumper installed, replace the
APS. Refer to Service Section D) “Replacing an Air
Proving Switch (APS).
6. If there is still no output from the APS, check the output
voltage from the power switch.
7. If there is no voltage from the power switch, test the input
to the switch. If there is input, replace the power switch.
8. If there is no input to the switch, check the interlock
switch and the supply voltage.
Troubleshooting
The air cleaner, when operating normally with the fan
running, should have both the orange power switch light
and the green performance indicator light
ON
. If the fan is
running and the lights are not on, follow instructions below
for probable causes and remedies.
Quick Check (Orange Power Switch Light
ON
, Green
Performance Indicator Light
OFF
)
Detailed Troubleshooting
① Testing For High Voltage at Power Board
With the collecting cells out of the unit, the door on the unit
and the system fan on high speed, turn the air cleane
r ON
.
With a long shafted screwdriver with a plastic handle, short
between the grounded side of the power box and the HV1
terminal of the power board. If you draw a good spark,
there is high voltage from the power board.
② Measuring High Voltage at Power Board
A high voltage meter capable of measuring up to 10,000
VDC is required to test the voltage.
i
CAUTION!
For most troubleshooting, the cells should be removed
from the air cleaner. A short in one of the cells will cause
the power board to shut down and the performance light
will stay
OFF
. Unless otherwise directed, remove the cells
from the unit when testing.
i
WARNING!
When performing LIVE tests in the power box,
NEVER
touch any parts other than what is mentioned in the tests.
Components carry dangerous voltages and extreme care
must be taken.
1. The air cleaner should be
ON
with the cells installed,
the door closed and the system fan running.
The air cleaner should be on at least 5 minutes
to allow voltage to stabilize. The cells and ionizing
wires must be clean.
2. Remove the cover from power box.
3. Connect the ground of the high voltage meter to an
unpainted surface in the power box.
4. Check terminals HV1 and HV2 on the power board to
determine if voltage is present. See Table 3 for values
If no voltage is present, remove both cells from the
air cleaner and replace door. Recheck the voltage at
HV1 and HV2
If voltage is present, the problem is with one of the
cells or the wiring to the copper contacts.
With a flashlight, look into the cabinet to check
condition of the copper contacts.
If the contacts are not bent, replace one cell and
retest voltage. If cell is OK, test the other cell. If the
problem is with a cell, see Troubleshooting sections
⑥, ⑦, and ⑧.
If there is no voltage with both cells removed,
check the power board, APS and transformer to
make sure that they are functioning correctly.
