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F59A
ELECTRICAL TROUBLESHOOTING
TROUBLESHOOTING PROCEDURE
CAUTION
ELECTRIC SHOCK HAZARD.
CAN CAUSE PERSONAL INJURY.
Always turn off power before troubleshooting.
Fig. 6—Troubleshooting the F59A.
START
MAKE SURE
ELECTRONIC CELL
IS CLEAN, DRY AND
PROPERLY
INSTALLED.
MAKE SURE
PREFILTER AND
CARBON POST-
FILTER ARE
PROPERLY
INSTALLED.
REPLACE THE
COVER AND TURN
THE AIR CLEANER
ON. CHECK LO,
THEN MED, THEN HI
SPEEDS.
CHECK FAN AND
NEON LIGHT.
BOTH
ON
OPEN COVER; PUSH
IN INTERLOCK
SWITCH; WITH
PLASTIC-HANDLED
SCREWDRIVER,
SHORT FROM CELL
FRAME TO A HOT
COLLECTOR
3
PLATE.
YES
ELECTRONIC AIR
CLEANER IS OK.
1
NEON LIGHT MUST BE REPLACED TO ENSURE PROPER AIR CLEANER OPERATION.
2
ELECTRONIC COMPONENTS ON POWER SUPPLY BOARD ARE NOT FIELD REPLACEABLE. ATTEMPTED SERVICE WILL DAMAGE BOARD.
3
A HIGH VOLTAGE METER CAN BE USED TO MEASURE IONIZER AND COLLECTOR VOLTAGE.
68-0086—5
TROUBLESHOOTING F59A ELECTRONIC AIR CLEANER
TO USE THIS CHART:
1. Be sure to follow the steps sequentially.
2. Each time you isolate and fix a problem, go back to START.
3. Repeat ALL the steps until the air cleaner checks out OK.
THESE SERVICING INSTRUCTIONS ARE FOR USE BY QUALIFIED PERSONNEL
ONLY. TO REDUCE RISK OF ELECTRIC SHOCK, DO NOT PERFORM ANY
SERVICING OTHER THAN CONTAINED IN THE OPERATING INSTRUCTIONS
UNLESS YOU ARE QUALIFIED TO DO SO.
CHECK LINE
POWER; CORRECT
AS NEEDED.
FAN
ON
BOTH
OFF
FAN
JUMPER FAN
LIGHT
OFF
SWITCH CONTACTS
ON
- FOR EACH SPEED
IN TURN.
FAN
ON
REMOVE CELL.
LIGHT
REPLACE COVER.
OFF
CHECK NEON
NO
LIGHT.
LIGHT
ON
INSPECT CELL FOR
– BENT COLLECTOR
PLATES
– BROKEN IONIZER
WIRES
CELL
– DIRT ON
DAMAGED
INSULATORS
– DAMAGED
CONTACT TABS
NO CELL
DAMAGED NOTED
WITH OHMMETER
CHECK FOR SHORT
BETWEEN
– CELL FRAME AND
IONIZER SECTION
CELL
– CELL FRAME AND
SHORTED
COLLECTOR
SECTION
INFINITE
RESISTANCE
CELL OK.
The troubleshooting chart shows how to quickly isolate
a problem in the air cleaner. See Figs. 6 through 10.
The solid state power supply assembly provided in this
air cleaner has no field-serviceable components. If trouble-
shooting indicates a power supply assembly problem, re-
place the entire power supply assembly. See Parts List
section, for order number.
WARNING
RISK OF ELECTRIC SHOCK
CHECK LAMP/FAN.
REPLACE SWITCH.
TURN OFF POWER.
MAKE SURE SHAFT
ON FAN MOTOR
ROTATES FREELY.
REPLACE MOTOR IF
NECESSARY.
VOLTAGE
REMOVE COVER.
CORRECT
CHECK VOLTAGE
CHECK FOR
ACROSS NEON
CORRECT INPUT
LEADS.
VOLTAGE BETWEEN
VOLTAGE
P1 AND P2
NOT
TERMINALS ON
CORRECT
POWER SUPPLY.
REPLACE LIGHT.
REPAIR OR
CHECK WIRING
REPLACE CELL.
BACK THROUGH
SWITCH, POWER
CORD, AND OUTLET
TO CIRCUIT
BREAKER OR FUSE.
REPLACE CELL.
6
LAMP ON
REPLACE SWITCH.
LAMP
OFF
VOLTAGE
BELOW
LIGHT OK. REPLACE
120 Vdc
COMPLETE POWER
SUPPLY.
VOLTAGE
ABOVE
120 Vdc
1
M1312B
2
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