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Model # GMNT120-5B Official Goodman gas furnace
Here are the diagrams and repair parts for Official Goodman GMNT120-5B gas furnace, as well as links to manuals and error code tables, if available.
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GMNT120-5B Gas Furnace
#291
Misc. components/drain kit assembly diagram
Furnace hot-surface ignition control board
Part #B1809913S
This item is not returnable
$216.75 |
5% OFF Phone Price : $228.75
In Stock
#131
Burner box assembly diagram
Igniter
Part #B1401015S
Replaced by #B1401018S
?
Manufacturer substitution
This part replaces B1401015S. Substitute parts can look different from the original.
$43.19 |
12% OFF Phone Price : $49.19
In Stock
#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.
$126.90 |
20% OFF Was : $158.40
In Stock
#251A
Blower assembly diagram
Goodman mount band-motor (heavy duty)
Part #B1376862
$7.69
In Stock
#261
Blower assembly diagram
Arm
Part #B1376857
$6.76 |
21% OFF Was : $8.51
In Stock
#81
Heat exchanger assembly diagram
Furnace flue restrictor plate
Part #4028000
This item is not returnable
$4.00
In Stock
#91H
Heat exchanger assembly diagram
Switch
Part #B1370195
$28.34
In Stock
#61I
Heat exchanger assembly diagram
Furnace heat exchanger
Part #4821402S
$459.39 |
$12.00 OFF Phone Price : $471.39
In Stock
#61K
Heat exchanger assembly diagram
Furnace primary heat exchanger, 24.5-in
Part #4821404S
$603.67 |
$12.00 OFF Phone Price : $615.67
In Stock
#NI01
All parts diagram
Furnace vent safety switch
Part #B1370254
$24.14
In Stock
Symptoms for top-mount refrigerators
Main causes: frozen or clogged defrost drain tube, cracked water system tubing…
Repair guides for top-mount refrigerators
How to replace the electronic control board inside a top-freezer refrigerator
The electronic control board is the "brains" of the refrigerator. Replace the electronic control board if it fails.…
Repair difficulty
Time required
15 minutes or less
How to replace a refrigerator temperature control thermostat
This helpful refrigerator repair guide explains how to replace the temperature control thermostat in a refrigerator.…
Repair difficulty
Time required
15 minutes or less
How to replace the condenser fan motor in a top-freezer refrigerator
The condenser fan is in the machine compartment of the refrigerator next to the compressor. It moves air across the cond…
Repair difficulty
Time required
15 minutes or less
Effective articles & videos to help repair your furnaces
Get expert tips for preparing your furnace for winter. Follow maintenance tips to keep your furnace in top shape.…
Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…
Get answers to frequently asked questions about Sears and Sears PartsDirect.…