10
TROUBLESHOOTING
Refer to Table 3 for troubleshooting information.
Table 3 — Troubleshooting
PROBLEM
PROBABLE CAUSE
REMEDY
Unit does not function correctly.
Power light and performance
indicator light are off.
Fan is not on.
Turn furnace fan on.
Wiring improperly connected.
Check wiring.
Defective power switch.
Check power switch for continuity with multimeter. Replace
if defective.
Defective safety interlock.
Remove door and press safety interlock with a screwdriver.
If lights come on, bend interlock lever towards front and
close door.
Power (120 v) is not provided to device.
Check power wiring with multimeter.
Power light is off and per-
formance indicator light is on.
Defective power light.
Replace power switch.
Unit does not function correctly.
Power light is on and per-
formance indicator light is off.
Short in cells. Due to:
1. Broken ionizing wire(s).
2. Large particles wedged between cell plates.
3. Cells washed recently and are still wet.
4. Round end plate insulator is burnt or melted.
5. Cell plates are bent.
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.
Defective performance indicator light.
Determine whether high voltage is present by testing power
box. If present, replace indicator light.
Defective power board.
Adjust high voltage potentiometer on power board clock-
wise. If high voltage is not present, replace power board.
Air proving switch sensor is burnt out.
Remove power box and connect with 120 v. Lightly blow on
air switch at the bottom of power box. If light does not come
on, replace switch.
Off board 24-v transformer is not working.
Verify output of transformer. Replace if necessary.
Cell makes loud hissing noise or
causes radio interference.
Internal cell contacts are not touching plates.
Test contact and repair.
Copper contacts on high voltage tray not mak-
ing good connection on cell.
With needle-nose pliers, gently pull contacts down or
replace contacts.
Cells arcing excessively (power
light and performance indicator
light on)
Cells wet from washing.
Allow cells to dry completely.
Particle lodged in cell or broken ionizing wire.
Wash cell. Shake particle out of cell. Replace wire, if
necessary.
Ducts were not cleaned prior to installation of
electronic air cleaner.
Clean ducts.
Cell plates are bent.
Remove cells and adjust to original spacing using needle
nose pliers.
Voltage is too high.
Adjust high voltage potentiometer on power board
counterclockwise.
Humidifier (if installed) is leaking water on air
cleaner.
Repair humidifier. If possible, move humidifier to different
location.
Cells arcing excessively at top of
cell near copper contacts (power
light and performance indicator
light on)
Contacts on high voltage tray are broken or
bent upward.
If possible, pull down contacts with needle nose pliers or
remove high voltage tray and replace contacts.
Cells not collecting dirt (power
light and performance indicator
light on)
Arrow on cell(s) not pointing towards fan blower. Reposition cells.
Furnace fan is on ‘‘Automatic’’ setting (air
cleaner not on continuously)
Use ‘‘Fan On’’ furnace fan setting for continuous fan
operation.
Not enough voltage on collecting cells.
Adjust high voltage potentiometer clockwise on power
board.
Ozone odor
Cell plates are bent.
Straighten with needle nose pliers.
Loose or broken ionizing wires.
Replace wires.
Dirty cells.
Wash cells.
Electronic air cleaner is on when system fan is
not running. Air switch not activated, or elec-
tronic air cleaner wired incorrectly.
Check operation and wiring of air switch and electronic air
cleaner.
Incoming voltage is higher than 120 v.
Adjust high voltage potentiometer counterclockwise on
power board.
Air cleaner is oversized for house. Not enough
airflow to cover surface area of cells.
Use correct size of electronic air cleaner.
Home is extremely dry.
Repair or install central humidifier.
More dust after installation than
before
Lint dust too heavy to remain airborne.
Keep fan running continuously. Ensure that return air grilles
are not obstructed.
Gaps around electronic air cleaner.
Seal or use duct tape around electronic air cleaner cabinet.
