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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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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  |
Rheem Motor 51-20169-02
#20

Unit parts diagram

Rheem motor

Part #51-20169-02

$353.51
In Stock
Blower Wheel 70-18631-01
#17

Unit parts diagram

Blower wheel

Part #70-18631-01

$191.76
In Stock
Rheem Coil Assembly AS-58228-02
#8B

Unit parts diagram

Rheem coil assembly

Part #AS-58228-02

$1545.45
In Stock
Filter 54-19655-12

#NI

All parts diagram

Filter

Part #54-19655-12

$22.71
In Stock
Rheem Furnace Coil Assembly AS-58227-02
#8A

Unit parts diagram

Rheem furnace coil assembly

Part #AS-58227-02

$1225.88
Back Order
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
Transformer 46-18788-83
#12

Unit parts diagram

Transformer

Part #46-18788-83

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

Capacitor 43-20847-09
#21A

Unit parts diagram

Capacitor

Part #43-20847-09

Replaced by #43-25134-04

?
Manufacturer substitution
This part replaces 43-20847-09. Substitute parts can look different from the original.
$9.80
In Stock
Housing AS-52026-01
#16A

Unit parts diagram

Housing

Part #AS-52026-01

Replaced by #70-B0907-01

?
Manufacturer substitution
This part replaces AS-52026-01. Substitute parts can look different from the original.
$748.87
In Stock
Vnt Mtr Rely 42-22444-03
#13

Unit parts diagram

Vnt mtr rely

Part #42-22444-03

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

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