F300A2012 & F300B2012 Parts (Single Cell Model)

  12½ x 20 16 x 20 16 x 25 20 x 20 20 x 25

The following diagram displays parts specific for the model F300a2012 & F300B2012. Visiting each part landing page will provide detailed part information, pricing and availability.

Power Box Cover for Honeywell F300
Air Flow Switch for F300 F52F F50F
Terminal Board For honeywell F50F F300 Front Cell Contact
Honeywell Power Supply Circuit Borad for F50F
w8600F1014 Honeywell Remote Indicator for F300 or F50F White
Honeywell Charged Postfilter Pair for F50F F300 16x20
Honeywell FC37 Series Collector Cell Contact Board
Honeywell Power Box for F300 F50F
Honeywell Power Box for F300 F50F
4074ETG Honeywell Interlock Switch and Bracket for F50F F300
4074EYS Neon Light Amber for Honeywell F300 F50F
203321 On-Off Switch for Honeywell F50 F52F F300
Honeywell Prefilter Pair Residential Grade for F50F F300 16x20
Honeywell Ionizer Wire for 16 inch Cells
Terminal Board for Honeywell F50F F300 Rear Cell Contact
137266 Plastic Cell Handle for Honeywell FC37 Series Cell
136518 Plastic Cell Key for Honeywell F50A F50E F50F F300
Honeywell Collector Cell for F50F F300 10x16
Honeywell Commercial High Voltage Wire Red
137980A Test Button Mounts in Door of F50A F50E F50F F300
Access Door for F300E F50F 16x20 16x25

Where is my F300 Model Number

F300E model is located on the inside of  acess doorOrder parts based on your model number. The f300 model number is located on the inside of the door.

Otherwise order parts based on the overall size of your cells. The F300 come in 5 sizes: The smallest model has one cell 12½x20.

The two cell models are 16" x 20", 16" x 25", 20" x 20", 20" x 25".

The difference between the F300E and F300A is the postfilter, which is not included with the F300A. The F300A has the postfilter which only needs to be slid in place. The F300B is a 240v version of the 12½x20 F300A.

The F300 is identical to the F50F, but with difference paint color.

Simple Power Supply Test Procedure

Troubleshoot Problem:

  • The neon indicator light is not coming on
  • The cells never spark
  • Power box switch is ON
  • Door is tight in place
  • Blower is ON
  1. Verify Power is Present.
    Unplug the power box cord and operate a drop-light in the 3-prong receptacle verifying an acceptable voltage and current.

  2. Check for Shorted Cells
    A shorted cell can prevent the indicator light from coming on. Remove both cells, with door back in place operate without cells. If the unit now appears OK with indicator light ON, then the cells have a problem.

    1. Operate without cells
    2. Check cells for broken wires
    3. Check cells for bent plates
    4. Check with one cell at a time (align cell with contacts)

  3. Replace or Repair Power Box.
    If the power box is plugged in to 120v and the Neon indicator still does not light without the cells, then the problem is in the power box.
  1. Check the on/off switch, interlock door switch and wiring.
  2. Bypass the Air Flow Switch (AFS), The AFS is a sensor that signals the power supply when air flow is present. Disabling the AFS will simulate the ON state. Using a jumper wire, ground AFS resistor to the chassis, see AFS Tech Notes.
    • Replace Air Flow Switch, if the Neon indicator lights and unit appears to work with the AFS disabled.
    • Replace Power Supply, if the Neon indicator does not light with the AFS disabled and no cells to short the output.
    • Neon problem, is not likely if test button does not spark. The neon lamp voltage should measure 125 vdc.

Buy a New F300E

complete F300 unitExample, if you need to replace your power box and would like a spare pair of cells. For the best value consider buying a complete new system unit.

All the parts from a new F300E can be simply transferred to any prior F300 of the same size. You can swap over the power box, cells, prefilters, post filters and door to your existing frame. The power box mounts with two screws. The powerbox comes with 120v cord.

12½ x 20 F300A2012
16 x 20 F300E1001
16 x 25 F300E1019
20 x 20 F300E1027
20 x 25 F300E1035

Warranty on Replacement Parts

Honeywell Two Yeah Limited WarrantyThe Honeywell warranty for F300 Replacement Parts is 2 years from the date of purchase. Our customers simply need to ship us the defective part. We test and confirm defective. We then ship back a brand new part at no charge.

Displaying products 1 - 32 of 32 results
203847 Hole Plug for Power Cord
203847
Honeywell Power Box Hole Plug for Power Cord
Price: $1.00
4074EMN Honeywell High Voltage Wire
4074EMN
Honeywell Commercial High Voltage Wire Red
Price: $2.00
4074EMP Honeywell High Voltage Wire
4074EMP
Honeywell Commercial High Voltage Wire Black
Price: $2.00
136518 Honeywell Cell Key
136518
Plastic Cell Key for Honeywell F50A F50E F50F F300
Price: $2.00
203852 Strain Relief for Power Cord
203852
Strain Relief for Honeywell F300 F50F Power Cord
Price: $4.00
137266 Honeywell Collector Cell Handle
137266
Plastic Cell Handle for Honeywell FC37 Series Cell
Price: $8.00
136434AA Honeywell Ionizing Wire
136434AA
Honeywell Ionizer Wire for 20" FC37 Series Cells
Price: $10.00
137980A Honeywell  Test Button
137980A
Test Button Mounts in Door of F50A F50E F50F F300
Price: $10.00
4074EHG Terminal Board for FC37A Cell
4074EHG
Honeywell FC37 Series Collector Cell Contact Board
Price: $14.00
4074EYS Honeywell F50 F300 Neon Lamp
4074EYS
Honeywell Amber Neon Light for F300 F50F
Price: $19.00
203321 Honeywell On-Off Switch
203321
Honeywell On-Off Power Switch for F50F F52F F300
Price: $19.00
4074ETD Power Cord Assembly F50F F300E
4074ETD
Honeywell Power Cord Assembly for F50F F300 120v
Price: $20.00
32007528-002 Honeywell F300 Access Door
32007528-002
Honeywell Access Door F300E F50F 20x20 20x25
Price: $22.00
203329D Honeywell F50F F300 Contact Board
203329D
Honeywell Terminal Board F50F Front Contact 20x20
Price: $24.00
4074ETG Honeywell F300 F50F Interlock Switch
4074ETG
Honeywell Interlock Switch and Bracket for F50F F300
Price: $27.00
50000293-004 Honeywell Post Filter
50000293-004
Honeywell Postfilter Pair for F50F F300 20x25 Unwrapped
Price: $36.00
W8600F1006 Honeywell Remote Indicator
W8600F1006
Honeywell Remote Indicator for F300 or F50F Taupe
Price: $36.00
50000293-004 Honeywell Post Filter
50000293-004
Honeywell Charged Postfilter Pair for F50F F300 20x25
Price: $41.00
4074ETJ Honeywell Air Flow Sensor
4074ETJ
Honeywell Airflow Switch for F300 F50F Single Cell
Price: $41.00
W8600F1014 Honeywell Remote Indicator
W8600F1014
Honeywell Remote Indicator for F300 or F50F White
Price: $44.00
32004876-003 Honeywell F300E Access Door
32004876-003
Honeywell Access Door for F300 F50F 20x20 20x25
Price: $46.00
Honeywell 203369 Commercial Prefilter 12.5 x 20
203369
Honeywell Prefilter Pair for F50F F300 Commercial 12½x20
Price: From $49.00 to $225.00
208414C Honeywell Power Supply
208414C
Honeywell Power Supply F50F Series One 20x12½
Price: $135.00
208045G Honeywell Power Supply
208045G
Honeywell Power Supply for F300 F50F Series 2: Replacement for 208045G
Price: $135.00
Honeywell PS1201A Power Supply for F300 F50F F58 Series Two
PS1201A00
Honeywell Power Supply for F300 F50F F58 Series Two Replaces 208045G 208045J 208045A
Price: $145.00
208419A Honeywell Power Box for F300E2012
208419A
Honeywell Power Box F300 F50F Series Two 12½x20
Price: $215.00
208419D Honeywell Power Box
208419D
Honeywell Power Box F50F Series One 12½x20
Price: $215.00
FC37B1030 Honeywell Collector Cell
FC37B1030
Honeywell Collector Cell Commercial F50 F300 F57 F90 12½x20
Price: $240.00
unavailable
PS1202B12
Honeywell Power Box for F300 F50F 12½x20 Replaces 208419D 208419A
Price: $260.00
F300B2012 Honeywell Air Cleaner 12x20
F300B2012
Honeywell 1000 cfm Electronic Air Cleaner 240v
Price: $466.00
F300A2012 Honeywell Air Cleaner
F300A2012
Honeywell 1000 cfm Electronic Air Cleaner 12½x20
Price: $431.00
W8600A1007 Honeywell Remote Indicator
W8600A1007
Honeywell AirWatch Indicator for F50F F52F F300
Price: $41.00
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