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  |

Coil-cndnsg 20052603
#48

Functional replacement parts diagram

Coil-cndnsg

Part #20052603

In Stock
Baffle 20052001
#10

Functional replacement parts diagram

Baffle

Part #20052001

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.
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.
$205.62
5% OFF Phone Price : $215.62
In Stock
Furnace Blower Assembly 20054703
#13

Functional replacement parts diagram

Furnace blower assembly

Part #20054703

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

Control Assembly 20052804
#68

Functional replacement parts diagram

Control assembly

Part #20052804

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

Cvr-bck Brnr 20051201
#6

Functional replacement parts diagram

Cvr-bck brnr

Part #20051201

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

Brt-blwr Spt 20051902
#14

Functional replacement parts diagram

Brt-blwr spt

Part #20051902

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

Hanger Kit 20055303

#NI

All parts diagram

Hanger kit

Part #20055303

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

Ignit Cntrl B1811872
#19A

Functional replacement parts diagram

Ignit cntrl

Part #B1811872

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

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