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Rheem
Heating & Cooling Combined Unit

Model # RRAA Official Rheem rooftop unit

Here are the diagrams and repair parts for Official Rheem RRAA rooftop unit, 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 278 parts  |
Motor 51-20681-01
#48

Functional replacement parts diagram

Motor

Part #51-20681-01

Replaced by #WG840465

?
Manufacturer substitution
This part replaces 51-20681-01. Substitute parts can look different from the original.
BEST SELLER
$150.11
In Stock
Motor 51-20921-01
#13D

Functional replacement parts diagram

Motor

Part #51-20921-01

Replaced by #45461

?
Manufacturer substitution
This part replaces 51-20921-01. Substitute parts can look different from the original.
BEST SELLER
$207.04
In Stock
Motor 51-20908-01
#13A

Functional replacement parts diagram

Motor

Part #51-20908-01

Replaced by #45461

?
Manufacturer substitution
This part replaces 51-20908-01. Substitute parts can look different from the original.
BEST SELLER
$207.04
In Stock
Motor 51-20918-01
#13C

Functional replacement parts diagram

Motor

Part #51-20918-01

Replaced by #45461

?
Manufacturer substitution
This part replaces 51-20918-01. Substitute parts can look different from the original.
BEST SELLER
$207.04
In Stock
Fan Blade 70-19895-01
#50

Functional replacement parts diagram

Fan blade

Part #70-19895-01

$217.93
In Stock
Blower Wheel 70-18625-01
#14A

Functional replacement parts diagram

Blower wheel

Part #70-18625-01

$195.52
In Stock
Blow Cutoff AE-64401-06
#15A

Functional replacement parts diagram

Blow cutoff

Part #AE-64401-06

$24.11
In Stock
Capacitor 43-17075-01

#NI

All parts diagram

Capacitor

Part #43-17075-01

$35.38
In Stock
Blower Wheel 70-17426-02
Blower wheel

Part #70-17426-02

$239.42
In Stock
Crnkcs Htr 44-17402-06
#38A

Functional replacement parts diagram

Crnkcs htr

Part #44-17402-06

$59.16
In Stock

Most common symptoms to help you fix your heating & cooling combined units

Choose a symptom to see related heating and air conditioning system repairs.

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Why is my furnace not blowing hot enough?

Thermostat problem, clogged air filter, burner failure…

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Why isn’t my air conditioner cooling well?

Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor…

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Why isn’t my air conditioner cooling?

Thermostat problems, bad compressor/condenser fan capacitor, lack of refrigerant, failed compressor…

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Why won't my air conditioner turn on?

Main causes: errant thermostat settings, lack of electrical power, clogged drain line, wiring failure, control failure.…

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Why won't my furnace turn on?

Main causes: Errant thermostat settings, lack of power, bad interlock switches, lack of exhaust ventilation, wiring fail…

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Why won’t my furnace burners won’t stay lit?

Dirty flame sensor, failed flame sensor, damaged burner, bad high limit switch…

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How to unclog the air conditioner drain line

The condensate drain line for your central air conditioner can clog with mold and mildew. Water will back up and start d…

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Time required
 15 minutes or less
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How to replace a heating and air conditioning system thermostat

The control thermostat for your HVAC system can stop working. This repair guide shows how to replace it.…

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Effective articles & videos to help repair your heating & cooling combined units

Use the advice and tips in these articles and videos to get the most out of your HVAC system.

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Maintaining your air conditioner

Learn how to maintain your central air conditioner to keep it running smoothly all summer long.…

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