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Rheem
Furnace

Model # RGJA-12 Official Rheem gas-fired condensing horizontal furnace

Here are the diagrams and repair parts for Official Rheem RGJA-12 gas-fired condensing horizontal furnace, as well as links to manuals and error code tables, if available.

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

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Model diagram and schematic

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Showing 10 of 99 parts  |
Rheem Coil-cndnsg 20052603
#48

Functional replacement parts diagram

Rheem coil-cndnsg

Part #20052603

$534.30
In Stock
Baffle 20052001
#10

Functional replacement parts diagram

Baffle

Part #20052001

$83.60
In Stock
Transformer 20054401
#18

Functional replacement parts diagram

Transformer

Part #20054401

Replaced by #90-4031F

?
Manufacturer substitution
This part replaces 20054401. Substitute parts can look different from the original.
$10.99
In Stock
Ignit Cntrl B1811738
#19

Functional replacement parts diagram

Ignit cntrl

Part #B1811738

Replaced by #BG1600M51EF-1AA

?
Manufacturer substitution
This part replaces B1811738. Substitute parts can look different from the original.
$191.94
| 
6% OFF Phone Price : $203.94
In Stock
Gskt-flue Bx 20056303
#45

Functional replacement parts diagram

Gskt-flue bx

Part #20056303

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

Burner 20052901
#66

Functional replacement parts diagram

Burner

Part #20052901

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

Vnt/drn Kit 20064702

#NI

All parts diagram

Vnt/drn kit

Part #20064702

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

Pnl-cntr Bck 20050901
#3

Functional replacement parts diagram

Pnl-cntr bck

Part #20050901

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

Manifold 20053204
#54

Functional replacement parts diagram

Manifold

Part #20053204

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

Gskt-trnsfr 20056503
#50

Functional replacement parts diagram

Gskt-trnsfr

Part #20056503

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

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