Manning Bowman
Space Heater

Model # 321420A Official Manning Bowman oil-fired floor furnace

Here are the diagrams and repair parts for Official Manning Bowman 321420A oil-fired floor furnace, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 55 parts  |

Case T7605
#6

Replacement parts diagram

Case

Part #T7605

The manufacturer no longer makes this part, and there's no substitute part

Model No. 155.81 K8638
#24B

Replacement parts diagram

Model no. 155.81

Part #K8638

The manufacturer no longer makes this part, and there's no substitute part

Tee Pipe T10098
#20

Replacement parts diagram

Tee pipe

Part #T10098

The manufacturer no longer makes this part, and there's no substitute part

End Case T7603
#7

Replacement parts diagram

End case

Part #T7603

The manufacturer no longer makes this part, and there's no substitute part

Air Skirt T7573
#12

Replacement parts diagram

Air skirt

Part #T7573

The manufacturer no longer makes this part, and there's no substitute part

Lo Fire Ring Y7223
#21

Replacement parts diagram

Lo fire ring

Part #Y7223

The manufacturer no longer makes this part, and there's no substitute part

Control Vane Y6998
#19

Replacement parts diagram

Control vane

Part #Y6998

The manufacturer no longer makes this part, and there's no substitute part

Control Rod Z1947
Control rod

Part #Z1947

The manufacturer no longer makes this part, and there's no substitute part

Oil Valve K8451
#44

Replacement parts diagram

Oil valve

Part #K8451

The manufacturer no longer makes this part, and there's no substitute part

Element K7774
#24A

Replacement parts diagram

Element

Part #K7774

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for top-mount refrigerators

Main causes: frozen or clogged defrost drain tube, cracked water system tubing…

Repair guides for top-mount refrigerators

How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty
Time required
 15 minutes or less
How to replace the compressor run capacitor in a top-freezer refrigerator

How to replace the compressor run capacitor in a top-freezer refrigerator

The run capacitor sends electric current to the compressor motor to help the motor run efficiently. Replace the run capa…

Repair difficulty
Time required
 15 minutes or less
How to replace the defrost thermistor in a top-freezer refrigerator

How to replace the defrost thermistor in a top-freezer refrigerator

The defrost thermistor attaches to the evaporator coil and measures the evaporator coil temperature during defrost.…

Repair difficulty
Time required
 15 minutes or less

Articles and videos for top-mount refrigerators

What happens if I keep using an expired water filter in my refrigerator?

What happens if I keep using an expired water filter in my refrigerator?

Learn why you should replace your refrigerator's water filter when it expires.…

How to Replace the Water Filter in a GE Refrigerator

How to Replace the Water Filter in a GE Refrigerator

See how to install the water filter on your GE refrigerator, no matter the filter type or refrigerator style.…

How to Replace the Water Filter in a Maytag Refrigerator

How to Replace the Water Filter in a Maytag Refrigerator

No matter what style Maytag refrigerator you have, we can walk you through replacing the water filter.…