Rheem
Furnace

Model # OMB Official Rheem counterflow oil furnace

Here are the diagrams and repair parts for Official Rheem OMB counterflow oil 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 63 parts  |

Blow Cutoff AE-64401-06
#16B

Replacement parts diagram

Blow cutoff

Part #AE-64401-06

In Stock
Weatherking Rack AE-66681-01

#NI

All parts diagram

Weatherking rack

Part #AE-66681-01

In Stock
Furnace Blower Fan Wheel 70-20602-01
#18B

Replacement parts diagram

Furnace blower fan wheel

Part #70-20602-01

$108.77
10% OFF Phone Price : $120.77
In Stock
Weatherking Blow Cutoff AE-64401-18
#16C

Replacement parts diagram

Weatherking blow cutoff

Part #AE-64401-18

In Stock
Blower Wheel 70-18631-01
#18

Replacement parts diagram

Blower wheel

Part #70-18631-01

In Stock
Blower Wheel 70-18625-01
#18A

Replacement parts diagram

Blower wheel

Part #70-18625-01

In Stock
Switch 47-20545-82
#8

Replacement parts diagram

Switch

Part #47-20545-82

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

Motor 51-18828-11
#17A

Replacement parts diagram

Motor

Part #51-18828-11

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

Capacitor 43-20847-10

#NI

All parts diagram

Capacitor

Part #43-20847-10

Replaced by #12907

?
Manufacturer substitution
This part replaces 43-20847-10. Substitute parts can look different from the original.
This item is not returnable
$4.87
17% OFF Phone Price : $5.87
In Stock
Capacitor 43-20847-38

#NI

All parts diagram

Capacitor

Part #43-20847-38

Replaced by #43-25134-05

?
Manufacturer substitution
This part replaces 43-20847-38. Substitute parts can look different from the original.
In Stock

Repair guides for side-by-side refrigerators

How to replace an ice dispenser motor in a side-by-side refrigerator

How to replace an ice dispenser motor in a side-by-side refrigerator

If your side-by-side refrigerator isn’t churning out ice, replacing the motor could fix the problem. These steps explain…

Repair difficulty
Time required
 45 minutes or less
How to replace a defrost heater in a side-by-side refrigerator

How to replace a defrost heater in a side-by-side refrigerator

If frost is building up in the freezer of your side-by-side refrigerator, the defrost heater could be faulty. Follow the…

Repair difficulty
Time required
 45 minutes or less
How to replace an evaporator fan motor in a side-by-side refrigerator

How to replace an evaporator fan motor in a side-by-side refrigerator

If your refrigerator isn't as cold as it should be, it could be that the evaporator fan motor isn't circulating air. Thi…

Repair difficulty
Time required
 60 minutes or less

Effective articles & videos to help repair your furnaces

How to get your furnace ready for winter

How to get your furnace ready for winter

Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…