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Rheem
Heating & Cooling Combined Unit

Model # RAC Official Rheem rooftop unit

Here are the diagrams and repair parts for Official Rheem RAC 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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Showing 10 of 225 parts  |
Motor 51-20681-01
#48

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
Capacitor 43-20847-11
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 43-20847-04
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
Relay-plug 42-19423-01
#28

Replacement parts diagram

Relay-plug

Part #42-19423-01

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

Fan Blade 70-19895-01
#50

Replacement parts diagram

Fan blade

Part #70-19895-01

$217.93
In Stock
Crnkcs Htr 44-17402-06
#38A

Replacement parts diagram

Crnkcs htr

Part #44-17402-06

$59.16
In Stock
Blow Cutoff AE-64401-06
#15A

Replacement parts diagram

Blow cutoff

Part #AE-64401-06

$24.11
In Stock
Blower Wheel 70-17426-02
#14B

Replacement parts diagram

Blower wheel

Part #70-17426-02

$239.42
In Stock
Capacitor 43-17075-01

#NI

All parts diagram

Capacitor

Part #43-17075-01

$35.38
In Stock
Blower Wheel 70-18625-01
#14

Replacement parts diagram

Blower wheel

Part #70-18625-01

$195.52
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 furnace burners won’t stay lit?

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

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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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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

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

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Maintaining your air conditioner

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