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Honeywell F300E1035 & F300A2025 Parts

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

The following diagram displays parts specific for the model F300E1035 & F300A2025. 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 Ionizer Wire for 16 inch Cells
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
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

Order 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.

Honeywell F300 Owners & Installtion Manuals


Troubleshooting flowchart, assembly drawing, exploded view, parts list. Troubleshooting starts at page 20. (2.2M pdf, 44 pages) Effective, Low Maintenance, Superior Performance, Three-Stage Filtration, Sizes (510k pdf, 2 Pages) Competitive Comparison of Carrier AIRA, Aprilaire 5000, Trion HE Series, Trane Perfect Fit (44k pdf 1 page) Features and performance of the Trane CleanEffects (or American Standard AccuClean) compared to the the Honeywell F300E (1M pdf, 4 pages) Features and performance of the Aprilaire 5000 compared to the the Honeywell F300E (415k pdf, 4 pages) Operation, Cleaning, Warranty. (820k pdf, 20 pages) Particles suspended in the air almost indefinitely (125k pdf, 1 Page) So whats the recommendation? Wash your electronic air cleaner cells about every 6 to 12 months (93k pdf, 1 page) Honeywell EAC delivers impressive reliability and low failure rates (72k pdf 1 page) Indoor air quality is maintained in three ways, Reduction, Dilution, Source Control (3.6M pdf, 28 pages)

Prefilter Upgrade


Permatron manufacturers the prefilters for the brand name electronic air cleaners.
Permatron also manufactures a premium line of electrostatic prefilters and activated carbon filters. Permatron has engineered filter upgrades for the F50A & F50E utilizing the latest advancements in filtration technology.

Electrostatic Prefilters
Removes the larger particles to increase the cell efficiency.

Activated Carbon Filter
Removes odors from the air, does not mask them.

Permatron manufactures the pre-filters for the brand name electronic air cleaners. Permatron also manufactures a premium line of electrostatic pre-filters and activated carbon filters. Permatron has engineered filter upgrades for the F300 and F50 utilizing the latest advancements in filtration technology.
Permaton brochure describing the performance, specifications, cleaning, warranty (1.2M pdf, 4 pages)



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

F50F to F300A quick parts swap interchangableExample, 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.

Photos showing the power box removal (423k pdf, 2 pages).
12½ x 20

F300A2012
16 x 20

F300E1001
16 x 25

F300E1019
20 x 20

F300E1027
20 x 25

F300E1035

F300E & F300A Part Number List


Description F300A2012
12½ x 20
F300E1001
F300A1620
16 x 20
F300E1019
F300A1625
16 x 25
F300E1027
F300A2020
20 x 20
F300E1035
F300A2025
20 x 25
Access Door 32007528-002 32007528-003 32007528-003 32007528-002 32007528-002
Test Button 137980A 137980A 137980A 137980A 137980A
Collector Cell FC37A1064 FC37A1114 FC37A1130 FC37A1049 FC37A1064
Cell Handle 137266 137266 137266 137266 137266
Prefilter 203369 209989 203368 203370 203369
Cell Key 136518 136518 136518 136518 136518
Power Box 208419D 208418J 208417S 208418H 208417R
Switch 203321 203321 203321 203321 203321
Power Supply 208045G 208045J 208045G 208045G 208045G
Interlock Switch 4074ETG 4074ETG 4074ETG 4074ETG 4074ETG
Power Box Cover NLA 32004930-002 32004930-001 32004930-002 32004930-001
Terminal Board Front 203329D 203329B 203329B 203329C 203329B
Terminal Board Rear NA 203329A 203329A 203329A 203329A
Hole Plug 203847 203847 203847 203847 203847
Neon Lamp 4074EYS 4074EYS 4074EYS 4074EYS 4074EYS
Air flow Sensor 4074ETJ 4074EZB 4074EZB 4074EZB 4074EZB
Post-Filter 50000293-004 50000293-001 50000293-002 50000293-003 50000293-004
Cell Repair Kit 4074EHG 4074EHG 4074EHG 4074EHG 4074EHG
Ionizer Wire 136434AA 136434BA 136434BA 136434AA 136434AA
240v Conv Transformer NA 203365A 203365A 203365A 203365A
Remote Indicator W8600F W8600F W8600F W8600F W8600F
Hi-Voltage Wire
Red & Black
4074EMN
4074EMP
4074EMN
4074EMP
4074EMN
4074EMP
4074EMN
4074EMP
4074EMN
4074EMP

Warranty on Replacement Parts

The Honeywell warranty for F300 Replacement Parts is 2 years. 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.Power supply warranty on page 7 of the power supply installation instructions (150k pdf, 8 pages)

Displaying products 1 - 40 of 40 results
203847 Hole Plug for Power Cord
203847
Honeywell Power Box Hole Plug for Power Cord
Price: $1.00
136518 Honeywell Cell Key
136518
Plastic Cell Key for Honeywell F50A F50E F50F F300
Price: $2.00
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
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: $7.00
136434AA Honeywell Ionizing Wire
136434AA
Honeywell Ionizer Wire for 20" FC37 Series Cells
Price: $10.00
4074ETD Power Cord Assembly F50F F300E
4074ETD
Honeywell Power Cord Assembly for F50F F300 120v
Price: $12.00
4074EHG Terminal Board for FC37A Cell
4074EHG
Honeywell FC37 Series Collector Cell Contact Board
Price: $12.00
137980A Honeywell  Test Button
137980A
Test Button Mounts in Door of F50A F50E F50F F300
Price: $12.00
Honeywell Power Box Steel Chassis for F50F F300
4074CHA
Steel Power Box Chassis for F50F or F300
Price: $16.00
203321 Honeywell On-Off Switch
203321
Honeywell On-Off Power Switch for F50F F52F F300
Price: $18.00
4074EYS Honeywell F50 F300 Neon Lamp
4074EYS
Honeywell Amber Neon Light for F300 F50F
Price: $19.00
32007528-002 Honeywell F300 Access Door
32007528-002
Honeywell Access Door F300E F50F 20x20 20x25
Price: $22.00
4074ETG Honeywell F300 F50F Interlock Switch
4074ETG
Honeywell Interlock Switch and Bracket for F50F F300
Price: $25.00
203329A Honeywell Contact
203329A
Honeywell Terminal Board for F50F Rear Contact
Price: $29.00
203329B Honeywell Contact for F50F F58F F300
203329B
Honeywell Terminal Board for F50F Front Contact
Price: $29.00
50000293-004 Honeywell Post Filter
50000293-004
Honeywell Postfilter Pair for F50F F300 20x25 Unwrapped
Price: $33.00
32004930-001 Honeywell Power Box Cover
32004930-001
Honeywell Power Box Cover for F300 16x25 20x25
Price: $35.00
W8600F1006 Honeywell Remote Indicator
W8600F1006
Honeywell Remote Indicator for F300 or F50F Taupe
Price: No Longer Available
203365A Honeywell 240v Transformer
203365A
Honeywell 120v to 240v Conversion Kit for F50F F300
Price: $38.00
50000293-004 Honeywell Post Filter
50000293-004
Honeywell Charged Postfilter Pair for F50F F300 20x25
Price: $39.00
Honeywell 203369 Residential Grade Prefilter Pair
203369-R
Honeywell Prefilter Pair for F50F F300 Residential 20x25
Price: $39.00
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
4074EZB Honeywell Air Flow Sensor
4074EZB
Honeywell Airflow Switch for F300 F52F F50F Series 2
Price: $47.00
Honeywell 203369 Commercial Prefilter 12.5 x 20
203369
Honeywell Prefilter Pair for F50F F300 Commercial 12½x20
Price: From $49.00 to $208.00
Permatron 203369 PreFilter Pair F50F F300
203369
Permatron Prefilter Pair for F50F F300E Stainless 20x25
Price: $59.00
Permatron Activated Carbon Post Filter
Perm20f25k
Permatron Prefilter & Carbon kit for F50F F300 20x25
Price: $83.00
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
Price: $139.00
FC37B1030 Honeywell Collector Cell
FC37B1030
Honeywell Collector Cell Commercial F50 F300 F57 F90 12½x20
Price: $195.00
FC37A1064 Honeywell Collector Cell
FC37A1064
Honeywell Collector Cell F50A F50E F50F F300 12½x20
Price: $211.00
208417R Honeywell F300 Power Box
208417R
Honeywell Power Box F300 F50F Series Two 20x25
Price: $225.00
208417Q Honeywell Power Box
208417Q
Honeywell Power Box F50F Series One 16x25 20x25
Price: $225.00
Honeywell Power Box for F300 F50F Series Two 20x25 20x20
PS1201B25
Honeywell Power Box for F300 F50F Series Two 20x25 20x20 replaces 208417R 208417S
Price: $250.00
Honeywell Power Box for F50F Series One 16x25 20x25
PS1202B25
Honeywell Power Box for F50F Series One 16x25 20x25 Replaces 208417Q
Price: $250.00
F300E1035 Honeywell Air Cleaner
F300E1035
Honeywell 2000 cfm Electronic Air Cleaner 20x25
Price: $587.00
32002109-001
Foam Gasket Installation Kit Seals F300 to Duct
Price: $5.00
W8600A1007 Honeywell Remote Indicator
W8600A1007
Honeywell AirWatch Indicator for F50F F52F F300
Price: No Longer Available
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