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PROBLEM
System fan is not on.
Unit does not function
correctly. Power
Wiring improperly connected.
switch on and
Defective power switch.
performance indicator
light is off.
Defective safety interlock.
Power (220 V) is not provided to device.
Short in cells due to:
1. Broken ionizing wire(s).
2. Large particles wedged between cell plate(s).
3. Cells washed recently and are still wet.
4. Round end plate insulator is burnt or melted.
5. Cell plate(s) are bent.
Defective performance indicator light.
Defective power board.
Air Proving Switch (APS) sensor is burnt out.
Off board 24 V transformer is not working.
Internal cell contacts are not touching plates.
Cell makes loud
hissing noise or
Copper contacts on high voltage tray not making
causes radio
good connection on cell.
interference.
Cells wet from washing.
Cells arcing
excessively
Particle(s) lodged in cell or broken ionizing wire.
(power switch on and
performance indicator
Ducts were not cleaned prior to installation of air
cleaner.
Cell plate(s) are bent.
Voltage is too high.
Contacts on high voltage tray are broken or bent. If possible, pull up contacts with needle-nose pliers or remove high
Cells arcing
excessively at bottom
of cell near copper
contacts (power switch
on and performance
indicator light on).
Arrow on cell(s) not pointing towards back.
Cells not collecting dirt
(power switch on and
System fan is on "Automatic" setting (air cleaner
performance indicator
not on continuously)
light on).
Not enough voltage on collecting cells.
Ozone odor
Cell plate(s) are bent.
Loose or broken ionizing wire(s).
Dirty cells.
Air Cleaner is on when system fan is not running.
Air switch not activated or air cleaner wired
incorrectly.
Incoming voltage is higher than 220 V.
Air Cleaner is oversized for house. Not enough
airflow to cover surface area of cells.
Home is extremely dry.
Clean lint dust too heavy to remain airborne.
White dust
Table 3 — TROUBLESHOOTING GUIDE
PROBABLE CAUSE
Turn system fan on.
Check wiring.
Check power switch for continuity with multimeter. Replace if defective.
Check interlock switch for continuity with multimeter. Replace if
defective.
Check power wiring with multimeter.
1. Remove wire or wire fragments, spring and S-hook. Replace.
2. Shake large particles out or wash cell.
3. Allow cells to dry completely.
4. Replace end plate insulator.
5. Straighten plates with pliers.
Determine whether high voltage is present by testing power board. If
present, replace indicator light.
Check components ahead of power board. Adjust high voltage
Jumper 3 & 4 on APS, close door. If light does not come on, replace
Verify output of transformer. Replace if necessary.
Test contacts and repair.
With needle-nose pliers, gently pull contacts up or replace contacts.
Allow cells to dry completely.
Wash cell. Shake particle out of cell. Replace wire, if necessary.
Clean ducts.
Remove cells and adjust to original spacing using needle-nose pliers.
Adjust high voltage potentiometer on power board clockwise.
voltage tray and replace contacts.
Reposition cells.
Use "Fan On" system fan setting for continuous fan operation.
Adjust high voltage potentiometer clockwise on power board.
Straighten with needle-nose pliers.
Replace wires.
Wash cells.
Check operation and wiring of air switch and air cleaner.
Adjust high voltage potentiometer counter-clockwise on power board.
Use correct size of Air Cleaner.
Repair or install central humidifier.
Keep fan running continuously. Ensure that return air grilles are not
obstructed.
REMEDY
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