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Goodman
Furnace

Model # GMT070-3B Official Goodman gas furnace

Here are the diagrams and repair parts for Official Goodman GMT070-3B gas furnace, as well as links to manuals and error code tables, if available.

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Installation guide

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
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
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

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 Burner B4022700
#181

Burner box assembly diagram

Furnace burner

Part #B4022700

$21.16 | 
22% OFF Phone Price : $27.16
In Stock
Furnace Temperature Limit Switch B1370198
#91

Heat exchanger assembly diagram

Furnace temperature limit switch

Part #B1370198

$27.29
In Stock
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
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

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
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

Symptoms for band saws

Choose a symptom to see related band saw repairs.

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Why does my band saw blade slip off the wheel?

Main causes: damaged rubber tire, worn wheel bearings, loose blade tension, dull saw blade…

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Why does my band saw make ragged cuts?

Main causes: dull blade, using the wrong type of blade, feeding work piece to quickly, loose blade tension…

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Why does my band saw make inaccurate bevel cuts?

Main causes: angle indicator needs adjustment, dull blade…

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Why won't my band saw cut straight?

Main causes: dull blade, improper feeding, loose blade tension, not using a work piece guide…

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Why won't my my band saw's blade move?

Main causes: broken saw blade, bad drive belt, damaged rubber tire…

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Why is my band saw cutting slowly?

Main causes: dull blade, using the wrong type of blade, weak drive motor…

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Why won't my band saw start?

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

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Repair guides for band saws

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

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How to replace a band saw on-off switch

How to replace a band saw on-off switch

If the switch won't turn the band saw on or off, it could be defective. Replace the switch, using these steps.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a band saw drive belt

How to replace a band saw drive belt

If the motor runs but the blade doesn't move, it could be that the drive belt is broken. Here's how to replace it.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a band saw blade

How to replace a band saw blade

If the saw blade is dull or damaged and isn't cutting cleanly, replace the blade following these steps.…

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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 and videos to get the most out of your band 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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