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TROUBLESHOOTING F50E AIR CLEANERS WITHOUT SOLID STATE
1
THE SNAPPING SOUND ON THE AIR CLEANER,
WITH A SOLID STATE POWER SUPPLY, IS
ABOUT HALF AS LOUD AS ON MODELS WITH
THE W919 POWER SUPPLY.
2
COMPONENTS ARE NOT FIELD REPLACEABLE.
Fig. 34. Electrical troubleshooting procedure for F50E electronic air cleaners without a W8600E.
Neon Light
The NEON LIGHT is in the on-off switch. It is powered
through the power supply and is ON when the power supply
is working properly. See internal schematic, Fig. 36.
On models with the W8600E printed wiring board, the neon
light in the on-off switch indicates only that the air cleaner is
powered. See internal schematic, Fig. 36.
PERFORMANCE INDICATOR TERMINALS ON POWER BOX
START
MAKE SURE ELECTRONIC
CELLS ARE CLEAN, DRY
AND PROPERLY INSTALLED.
TURN ON ELECTRONIC AIR
CLEANER AND SYSTEM
FAN.
OFF
CHECK NEON LIGHT ON
AIR CLEANER.
ON
PUSH TEST BUTTON AND
NO
LISTEN FOR SNAPPING
1
SOUND.
YES
ELECTRONIC AIR
CLEANER IS OK.
YES
REPAIR OR REPLACE
CELLS.
F50E DUCT MOUNTED ELECTRONIC AIR CLEANER
TO USE THIS CHART:
1.
FOLLOW THE STEPS IN ORDER; DO NOT SKIP AROUND.
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.
PUSH TEST BUTTON
YES
REPLACE LIGHT/
AND LISTEN FOR
1
SWITCH ASSEMBLY.
SNAPPING SOUND.
NO
TURN OFF AIR CLEANER
AND REMOVE CELLS .
CLOSE ACCESS DOOR
AND TURN ON AIR
CLEANER.
OFF
CHECK NEON LIGHT
ON AIR CLEANER.
CHECK FOR CORRECT INPUT
VOLTAGE ACROSS:
ON
120V MODELS: P1 AND P2
TERMINALS ON POWER
INSPECT CELLS FOR:
SUPPLY
BENT COLLECTOR
•
PLATES
220/240 MODELS: QUICK-
CONNECT TERMINALS ON
BROKEN IONIZER
•
POWER SUPPLY
WIRES
DIRT ON INSULATORS
TRANSFORMER.
•
DAMAGED IONIZER
•
OR COLLECTOR
CONTACT TABS
FIX
NO
WIRING.
WITH OHMMETER,
REPLACE COMPLETE
CHECK FOR SHORT
POWER SUPPLY
BETWEEN:
•
CELL FRAME AND
IONIZER SECTION
CELL
•
CELL FRAME AND
SHORTED
COLLECTOR SECTION
INFINITE
RESISTANCE
CELL OK.
CHECK LED (air cleaners with W8600E)
The CHECK LED is on the W8600E. It lights to indicate the
following problems: excessive dirt loading (beyond that
required to activate the WASH LED), partial shorting of the
collector, continuous ionizer or collector arcing, power supply
failure, excessive ionizer current, or any condition causing a
major reduction in high voltage.
19
WARNING
THIS STEP EXPOSES
DANGEROUSLY HIGH
VOLTAGE. ONLY A
QUALIFIED SERVICE
TECHNICIAN SHOULD
ATTEMPT THIS STEP.
NO
YES
2
REPLACE CELL.
M1347A
68-0072—5
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