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Goodman
Furnace

Model # GDT045-3B Official Goodman gas furnace

Here are the diagrams and repair parts for Official Goodman GDT045-3B gas furnace, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 154 parts  |
Furnace Hot-surface Ignition Control Board (replaces 18099-13s, B18099-13s) B1809913S
#291

Misc. components/drain kit assembly diagram

Furnace hot-surface ignition control board (replaces 18099-13s, b18099-13s)

Part #B1809913S

This item is not returnable
$185.31 | 
6% OFF Phone Price : $197.31
In Stock
Flame Sensor B1172606
#141

Burner box assembly diagram

Flame sensor

Part #B1172606

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

Wheel B1368047A
#241

Blower assembly diagram

Wheel

Part #B1368047A

Replaced by #D6723306S

?
Manufacturer substitution
This part replaces B1368047A. Substitute parts can look different from the original.
$119.58 | 
9% OFF Phone Price : $131.58
In Stock
Furnace Temperature Limit Switch B1370198
#91

Heat exchanger assembly diagram

Furnace temperature limit switch

Part #B1370198

$27.29
In Stock
Furnace Burner B4022700
#181

Burner box assembly diagram

Furnace burner

Part #B4022700

$21.16 | 
22% OFF Phone Price : $27.16
In Stock
Furnace Secondary Heat Exchanger 4021309S
#61C

Heat exchanger assembly diagram

Furnace secondary heat exchanger

Part #4021309S

$192.79 | 
6% OFF Phone Price : $204.79
In Stock
Furnace Auxiliary Limit Control (replaces B13701-11) B13701-55
#401

Blower assembly diagram

Furnace auxiliary limit control (replaces b13701-11)

Part #B13701-55

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

Furnace Gas Valve (replaces 0151m00013s) B1282628
#211

Burner box assembly diagram

Furnace gas valve (replaces 0151m00013s)

Part #B1282628

$114.39 | 
9% OFF Phone Price : $126.39
In Stock
Shell 2539305
#221A

Blower assembly diagram

Shell

Part #2539305

Replaced by #2539305S

?
Manufacturer substitution
This part replaces 2539305. Substitute parts can look different from the original.
$86.06 | 
7% OFF Phone Price : $92.06
In Stock
Orifice B4089343
#201

Burner box assembly diagram

Orifice

Part #B4089343

Replaced by #0163F00018

?
Manufacturer substitution
This part replaces B4089343. Substitute parts can look different from the original.
This item is not returnable
$4.29
In Stock

Symptoms for table saws

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Why does my table saw's blade spin too slow?

Main causes: worn motor brushes, faulty drive motor, using an improper extension cord…

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Why doesn't my table saw start?

Main causes: lack of power, broken on/off switch, bad motor overload, broken power cord, bad drive motor…

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Why can't I adjust the blade height on my table saw?

Main causes: saw dust build up, blade elevating and tilting mechanisms need lubrication…

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Why does my table saw make bad angle cuts?

Main causes: blade alignment needs adjustment, worn blade, bevel positive stops need adjustments, bevel pointer needs ad…

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Why does my table saw's overload trip?

Main causes: worn motor brushes, bad drive motor, faulty overload switch, using an improper extension cord, binding saw …

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Why does my table saw make bad cuts?

Main causes: dirty saw blade, dull or damaged saw blade, blade alignment needs adjustment…

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Repair guides for table saws

These step-by-step repair guides will help you safely fix what’s broken on your table saw.

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How to adjust a table saw blade

How to adjust a table saw blade

If the table saw isn’t cutting parallel to the miter gauge groove, adjust the cutting blade following the instructions i…

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Repair difficulty
Time required
 30 minutes or less
How to replace a table saw drive motor

How to replace a table saw drive motor

You can replace a table saw drive motor that is weak or won't run. Here’s how.…

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Repair difficulty
Time required
 45 minutes or less
How to replace a table saw blade

How to replace a table saw blade

If the table saw blade is dull or damaged, use these simple steps to replace it.…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your furnaces

Use the advice and tips in these articles to get the most out of your table saw.

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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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