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Rheem
Furnace

Model # HWA8&12 Official Rheem hot water space heat furnace

Here are the diagrams and repair parts for Official Rheem HWA812 hot water space heat furnace, as well as links to manuals and error code tables, if available.

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  • 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”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 47 parts  |
Relay-plug 42-19423-01
#14

Unit parts diagram

Relay-plug

Part #42-19423-01

Replaced by #WR90-370

?
Manufacturer substitution
This part replaces 42-19423-01. Substitute parts can look different from the original.
$21.63
| 
22% OFF Phone Price : $27.63
In Stock
Vnt Mtr Rely 42-22444-03
#13

Unit parts diagram

Vnt mtr rely

Part #42-22444-03

Replaced by #WR90-370

?
Manufacturer substitution
This part replaces 42-22444-03. Substitute parts can look different from the original.
$21.63
| 
22% OFF Phone Price : $27.63
In Stock
Blower Wheel 70-18631-01
#17

Unit parts diagram

Blower wheel

Part #70-18631-01

$191.76
In Stock
Filter 54-19655-12

#NI

All parts diagram

Filter

Part #54-19655-12

$22.71
In Stock
Rheem Coil Assembly AS-58228-02
#8B

Unit parts diagram

Rheem coil assembly

Part #AS-58228-02

$1545.45
In Stock
Rheem Motor 51-20169-02
#20

Unit parts diagram

Rheem motor

Part #51-20169-02

$353.51
In Stock
Rheem Furnace Coil Assembly AS-58227-02
#8A

Unit parts diagram

Rheem furnace coil assembly

Part #AS-58227-02

$1225.88
In Stock
Blower Wheel 70-21476-01
#17A

Unit parts diagram

Blower wheel

Part #70-21476-01

Replaced by #70-23111-05

?
Manufacturer substitution
This part replaces 70-21476-01. Substitute parts can look different from the original.
$143.04
In Stock
Bracket AS-53148-03
#19A

Unit parts diagram

Bracket

Part #AS-53148-03

Replaced by #AS-53148-83

?
Manufacturer substitution
This part replaces AS-53148-03. Substitute parts can look different from the original.
$69.09
In Stock
Capacitor 43-20847-04
#21

Unit parts diagram

Capacitor

Part #43-20847-04

Replaced by #12005

?
Manufacturer substitution
This part replaces 43-20847-04. Substitute parts can look different from the original.
$16.49
| 
11% OFF Phone Price : $18.49
In Stock

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