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Goodman
Furnace

Model # GMTH045-3B Official Goodman gas furnace

Here are the diagrams and repair parts for Official Goodman GMTH045-3B 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
Motor B4059001
#111

Heat exchanger assembly diagram

Motor

Part #B4059001

Replaced by #0131M00002PSP

?
Manufacturer substitution
This part replaces B4059001. Substitute parts can look different from the original.
$158.40 | 
7% OFF Phone Price : $170.40
In Stock
Furnace Burner Roll-out Limit Switch B1370145
#151

Burner box assembly diagram

Furnace burner roll-out limit switch

Part #B1370145

$11.69
In Stock
Furnace Air Pressure Switch B1370159
#351D

Misc. components/drain kit assembly diagram

Furnace air pressure switch

Part #B1370159

$57.18
In Stock
Manifold B4026003
#191F

Burner box assembly diagram

Manifold

Part #B4026003

$48.92 | 
11% OFF Phone Price : $54.92
Back Order
Wheel Blow B1368016
#241B

Blower assembly diagram

Wheel blow

Part #B1368016

Replaced by #B1368016S

?
Manufacturer substitution
This part replaces B1368016. Substitute parts can look different from the original.
$107.24
In Stock
Furnace Flue Collector Box, 21-in 4810006S
#101H

Heat exchanger assembly diagram

Furnace flue collector box, 21-in

Part #4810006S

$283.95
In Stock
Goodman Serv.-flcoll. Bx 17.5 -2.00 4010014S
#101C

Heat exchanger assembly diagram

Goodman serv.-flcoll. bx 17.5 -2.00

Part #4010014S

$169.54
In Stock
Goodman 14 Flue Collector Box 4010013S
#101A

Heat exchanger assembly diagram

Goodman 14 flue collector box

Part #4010013S

$136.64
In Stock
Goodman Gas Manifold-6 Cell B4026009
#191I

Burner box assembly diagram

Goodman gas manifold-6 cell

Part #B4026009

$29.27
In Stock

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