Honeywell F50A & F50E Parts - Size 12½ x 20

The following diagram displays parts that fits the Honeywell model F50A1108, F50E0167 and F50E1331. Visiting each part landing page will provide detailed part information, pricing and availability.

Where is my F50E/A Model Number

Hi-Resolotion photo of door (1.4M pdf, 1 photo) Order parts based on your model number. The F50 model number is located on the inside of the door. Otherwise order parts based on the overall size of your cells. The F50E came in 5 sizes. The smallest model has on cell 12"½x20". The two cell models are 16"x20", 16"x25", 20"x20", 20"x25".

If your air cleaner manufactured by a diferent company and looks like our photos, then it is a honeywell air cleaner. Honeywell also had an earlier F50F that was similiar. The most noticable difference between the F50F and the earlier F50E is the size of the powerbox. The F50F power box runs the full lenght from front to back. The F50E power box is half the lenght.

The F50A is identical to the F50E but without the W8600 and AFS.

Simple Power Supply Test Procedure

Troubleshooting 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
    Verify 120 volt is present entering the power box.

  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.
    • Operate without cells
    • Check cells for broken wires
    • Check cells for bent plates
    • 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
  • Check the on/off switch, interlock door switch and wiring.
  • 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.

F50E F50A vs F50F F300 Difference

F50A F50E Series EAC

Choosing parts depends on the model and size. The F50A and F50E use the same chassis and were manufactured in 4 sizes.

The F50F and F300 have a revised chassis where the contacts for the cells are built-in to the power box. The F50F and F300 were manufactured in 5 sizes.

To determine your model, the photos show the difference is in the power box. The newer F50F-F300 have a full length power box because the contacts for the cells are built in to the power box.

The top-left photo shows the F50A and F50E. The F50A and F50E are identical except the F50E had been enhanced with an air flow sensor built in to the power box.

The bottom-left photo shows the F300 and F50F model. Note the F50F and F300 are identical except for paint color.

More info on the plasitic door version

The F300E was manufactured with a plastic access door from 2000 through 2005. This door and alll parts are interchangeable with all F50F and F300. The plastic door was the same as used in the F200E without RF (airwatch indicator).

Evolution of the F50 Power Supply

The F50A was introduced in 1972 and has evolved in to the current F300. The same collector cells that were used in the F50A are still used in the F300. Thus variations of the current F300 power supply are used as the replacements for the prior F50 models.

In 1972 the F50A had an analog power supply as shown bottom-left. Then in 1987 the F50E was released, The F50E was the same as the F50A but with a new electronic power supply that offered two new optional features. The F50E offers an optional remote indicator and an air flow switch.

In 1993 the F50F was introduced with an all new chassis. The F50F now has all the electronics, from a 120v cord to the contacts for the cells built-in to the power box. Now a simple power box swap was a sure fix.

In 1998 the F50F Series 2 was released with a new optional LCD remote indicator that replaced the prior LED indicator. Also the internal power box wiring was improved with molex plug connectors. The connectors simplified manufacturing and power box repairs.

In 2000 the F300 was introduced that was identical to the F50F but the paint color was changed to blue. The F300 now has post filters that will also slide in to the F50F.

In 2012 Honeywell radically redesigned their power supply. They are very flexible and universal for multiple applications. Also, they seem to have better power surge protection along with ground loop frequency insolator.The new power supply design have the series one LED + AFS connection as well as the series two connections.Evolution of the Honeywell F50 and F300 power supply

F50A & F50E Series Parts Number List

Description F50E
12½ x 20
16 x 25
20 x 20
20 x 25
Test Button 137980A 137980A 137980A 137980A
Collector Cell FC37A1064 FC37A1130 FC37A1049 FC37A1064
Cell Handle 137266 137266 137266 137266
Prefilter 203372 203371 203373 203372
Post-Filter NA Perm 16x25 Perm 20x20 Perm 20x25
Cell Key 136518 136518 136518 136518
Power Box 120v
PS1202B12J PS1202B12J
Power Box 240v PS2402B12J PS2402B12J PS2402B12J PS2402B12J
On-Off Switch 199840 199840 199840 199840
Power Supply
PS1201C02 PS1201C01 PS1201C01 PS1201C01
Male Plug NA 136366 136366 136366
Female Plug NA 136364 136364 136364
Contact Board
Power Box
NA 136414A 136414A 136414A
Contact Board
Junsction Box
NA 136415A 136415A 136415A
Contact Board
Collector Cell
138889A 138889A 138889A 138889A
Cell Repair Kit 4074EHG 4074EHG 4074EHG 4074EHG
Ionizer Wire 136434AA 136434BA 136434AA 136434AA
Shorting Arm 136387A 136387A 136387A 136387A
Shorting Spring 136517 136517 136517 136517
Junction Box NA 136394B 136394B 136394B
Remote Indicator W8600F W8600F W8600F W8600F
Hi-Voltage Wire
Red & Black
Airflow Switch NA NA NA NA

Warranty on Replacement Parts

Honeywell Two Yeah Limited WarrantyThe Honeywell warranty for F50 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 - 27 of 27 results
4074EMN Honeywell High Voltage Wire
Honeywell Commercial High Voltage Wire Red
Price: $2.00
4074EMP Honeywell High Voltage Wire
Honeywell Commercial High Voltage Wire Black
Price: $2.00
136518 Honeywell Cell Key
Plastic Cell Key for Honeywell F50A F50E F50F F300
Price: $2.00
137266 Honeywell Collector Cell Handle
Plastic Cell Handle for Honeywell FC37 Series Cell
Price: $9.00
137980A Honeywell  Test Button
Test Button Mounts in Door of F50A F50E F50F F300
Price: $10.00
Wire Harness for F50A F50E neon light with AFS jumper
F50A-E Harness
Wire Harness for F50A F50E neon light with AFS jumper
Price: $10.00
136434AA Honeywell Ionizing Wire
Honeywell Ionizer Wire for 20" FC37 Series Cells
Price: $11.60
136366 Honeywell 2-Prong Connector
Honeywell F50A F50E Power Box Male Plug 2-Prong
Price: $14.00
4074EHG Terminal Board for FC37A Cell
Honeywell FC37 Series Collector Cell Contact Board
Price: $15.00
W8600E1008 Honeywell Remote Indicator
Honeywell Remote Performance LED Indicator
Price: $16.00
123773A Sail for S688A1007 Sail Switch
Sail Plastic with Wire Frame for Honeywell S688A
Price: $19.00
199840 Honeywell On-Off Switch with Neon
Switch with Neon Light for Honeywell F50A F50E F52E
Price: $21.00
138889A Honeywell F50A F50E Contact Board
Contact Board Mates with Cell for F50A F50E F59A F90 F70C F58C
Price: $24.49
Honeywell 203372 Prefilter 12.5 x 19.7
Honeywell Prefilter Pair for F50A F50E Residential 20x25
Price: $39.00
136376A High Voltage Conduit Assembly for F50A F50E
High Voltage Conduit Assembly for F50A F50E
Price: $41.00
Honeywell 203372 Commercial Prefilter 12.5 x 19.7
Honeywell Prefilter Pair for F50A F50E Commercial 12½x19¾
Price: $49.00
Permatron 203372 PreFilter Pair F50A F50E with Stainless Steel Frame
Permatron Prefilter Pair for F50F F300E Stainless 20x25
Price: $59.00
S688A1007 Honeywell Sail Switch
Honeywell Air Flow Sail Switch SPDT Rated to 240v
Price: $65.00
208425G Honeywell Power Supply
Honeywell Power Supply Board F50A F50E Single Cell
Price: $135.00
Power Supply F50A F50E Two Cell 120v replaces 208425A
Honeywell Power Supply F50A F50E Two Cell 120v
Price: $145.00
Honeywell Power Supply for F50E F50A Dual Cell for W8600E
Honeywell Power Supply for F50E F50A F52E F52F 12½x20 16x25 20x20 20x25 with W8600E Wire Harness
Price: $150.00
208422A Honeywell Power Box
Honeywell Power Box Assy F50A F50E 12½x20
Price: $180.00
FC37A1064 Honeywell Collector Cell
Honeywell Collector Cell F50A F50E F50F F300 F52 12½ x 20
Price: $210.00
FC37B1030 Honeywell Collector Cell
Honeywell Collector Cell Commercial F50 F300 F57 F90 12½x20
Price: $225.00
PS1202B12J Honeywell Power Box Assembly for F50A F50E with AFS 120v
Power Box Assembly for F50A F50E with AFS 120v replaces 208420A
Price: $270.00
F300B2012 Honeywell Air Cleaner 12x20
Honeywell 1000 cfm Electronic Air Cleaner 240v
Price: $466.00
W8600A1007 Honeywell Remote Indicator
Honeywell AirWatch Indicator for F50F F52F F300
Price: $41.00
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