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Rheem
Air Handler

Model # HQA SIZE 20 Official Rheem air handler

Here are the diagrams and repair parts for Official Rheem HQA-SIZE-20 air handler, 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 355 parts  |
Contactor 42-20616-01

#NI

All parts diagram

Contactor

Part #42-20616-01

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

Capacitor 43-20847-10
#21E

Replacement 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 43-20847-11
#21D

Replacement parts diagram

Capacitor

Part #43-20847-11

Replaced by #12907

?
Manufacturer substitution
This part replaces 43-20847-11. Substitute parts can look different from the original.
This item is not returnable
$4.87 | 
17% OFF Phone Price : $5.87
In Stock
Capacitor 43-20847-03
Capacitor

Part #43-20847-03

Replaced by #12005

?
Manufacturer substitution
This part replaces 43-20847-03. Substitute parts can look different from the original.
$16.12 | 
11% OFF Phone Price : $18.12
In Stock
Blower Wheel 70-18782-02
#23B

Replacement parts diagram

Blower wheel

Part #70-18782-02

Replaced by #70-20602-01

?
Manufacturer substitution
This part replaces 70-18782-02. Substitute parts can look different from the original.
$126.40 | 
7% OFF Phone Price : $136.40
In Stock
Relay 42-19736-14
Relay

Part #42-19736-14

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

Central Air Conditioner Air Handler Blower Motor 51-21543-01
#20B

Replacement parts diagram

Central air conditioner air handler blower motor

Part #51-21543-01

$721.90
In Stock
Limit Switch 47-20045-06
#34H

Replacement parts diagram

Limit switch

Part #47-20045-06

$61.22
In Stock
Blower Wheel 70-17426-02
#23C

Replacement parts diagram

Blower wheel

Part #70-17426-02

$239.42
In Stock
Relay 42-21593-01

#NI

All parts diagram

Relay

Part #42-21593-01

$28.96
In Stock

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