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Furnace

Model # GWH Official Rheem horizontal furnace

Here are the diagrams and repair parts for Official Rheem GWH horizontal furnace, as well as links to manuals and error code tables, if available.

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Browse Parts for
GWH Horizontal Furnace
Relay-plug 42-19423-01
Relay-plug

Part #42-19423-01

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

Weatherking Blow Cutoff AE-64401-05
Weatherking blow cutoff

Part #AE-64401-05

$29.67
In Stock
Orifice 62-21609-05

#NI

All parts diagram

Orifice

Part #62-21609-05

$26.67
In Stock
Weatherking Limit Switch 47-22383-13
#29A

Replacement parts 1-38 diagram

Weatherking limit switch

Part #47-22383-13

$26.62
In Stock
Orifice 62-22175-54
Orifice

Part #62-22175-54

$27.31
In Stock
Weatherking Blow Cutoff AE-64401-07
#33A

Replacement parts 1-38 diagram

Weatherking blow cutoff

Part #AE-64401-07

$21.71
In Stock
Orifice 62-22175-42
Orifice

Part #62-22175-42

$15.83
In Stock
Orifice 62-22175-55
Orifice

Part #62-22175-55

$17.40
In Stock
Burner Assembly 75-22476-14
#23C

Replacement parts 1-38 diagram

Burner assembly

Part #75-22476-14

$214.58
In Stock
Blow Cutoff AE-64401-06
#33B

Replacement parts 1-38 diagram

Blow cutoff

Part #AE-64401-06

$24.11
In Stock

Symptoms for gas ranges

Why isn't my range's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, control system failure, faulty t…

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Why won't my range's gas burner spark or ignite?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure…

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Repair guides for gas ranges

How to replace oven door hinges on a gas range

How to replace oven door hinges on a gas range

See how to replace the oven door hinges on a gas range yourself, in just 30 minutes.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a range spark igniter switch

How to replace a range spark igniter switch

Follow these steps to replace the spark igniter switch—sometimes called a burner switch or spark switch—on a gas or dual…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a gas range oven control board

How to replace a gas range oven control board

These step-by-step instructions explain how to replace an oven control board on a gas range…

Read more
Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your furnaces

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How to get your furnace ready for winter

How to get your furnace ready for winter

Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…

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Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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Top questions about Sears and Sears PartsDirect

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