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Rheem
Heating & Cooling Combined Unit

Model # RRKA-A18 Official Rheem gas/electric package unit

Here are the diagrams and repair parts for Official Rheem RRKA-A18 gas/electric package unit, 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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Showing 10 of 101 parts  |
Motor 51-23055-11

#46

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Motor

Part #51-23055-11

Replaced by #WG840465

?
Manufacturer substitution
This part replaces 51-23055-11. Substitute parts can look different from the original.
BEST SELLER
$150.11
In Stock
Motor 51-23024-31

#52

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Motor

Part #51-23024-31

Replaced by #45461

?
Manufacturer substitution
This part replaces 51-23024-31. Substitute parts can look different from the original.
BEST SELLER
$207.04
In Stock
Central Air Conditioner Start Capacitor (replaces U18-881) 43-17075-04

#NI05

All parts diagram

Central air conditioner start capacitor (replaces u18-881)

Part #43-17075-04

This item is not returnable
$28.38
In Stock
Limit Switch 47-22861-01

#63

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Limit switch

Part #47-22861-01

Replaced by #47-100241-01

?
Manufacturer substitution
This part replaces 47-22861-01. Substitute parts can look different from the original.
$28.20
In Stock
Capacitor 43-23204-03

#29

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Capacitor

Part #43-23204-03

Replaced by #43-25133-02

?
Manufacturer substitution
This part replaces 43-23204-03. Substitute parts can look different from the original.
$17.66
In Stock
Cnvrs Relay 60-21193-01

#73C

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Cnvrs relay

Part #60-21193-01

$16.23
In Stock
Furnace Burner Flame Sensor 62-23543-02

#71

All parts diagram

Furnace burner flame sensor

Part #62-23543-02

$22.63
In Stock
Coil Evapor AS-58627-71

#34A

All parts diagram

Coil evapor

Part #AS-58627-71

$829.38
In Stock
Coil Evapor AS-58627-91

#34B

All parts diagram

Coil evapor

Part #AS-58627-91

$1163.20
In Stock
Gasket 68-23643-01

#39A

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Gasket

Part #68-23643-01

$11.91
In Stock

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

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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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Most common repair guides to help fix your heating & cooling combined units

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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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Repair difficulty
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

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

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