Goodman
Furnace

Model # GMPN040-3 Official Goodman gas furnace

Here are the diagrams and repair parts for Official Goodman GMPN040-3 gas furnace, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 129 parts  |

Furnace Hot-surface Ignition Control Board (replaces 18099-13s, B18099-13s) B1809913S
#42

Burner box/control panel/blower 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
#43

Burner box/control panel/blower 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 Burner B4022700
#91

Burner box/control panel/blower diagram

Furnace burner

Part #B4022700

$21.16
22% OFF Phone Price : $27.16
In Stock
Furnace Flue Collector Box 2820007S
#81C

Heat exchanger diagram

Furnace flue collector box

Part #2820007S

In Stock
Furnace Blower Fan Motor Housing (replaces 2539305) 2539305S
#13A

Burner box/control panel/blower diagram

Furnace blower fan motor housing (replaces 2539305)

Part #2539305S

$86.06
7% OFF Phone Price : $92.06
In Stock
Capacitor CAP125000370RPS
#22A

Burner box/control panel/blower diagram

Capacitor

Part #CAP125000370RPS

Replaced by #CAP125000370RPP

?
Manufacturer substitution
This part replaces CAP125000370RPS. Substitute parts can look different from the original.
This item is not returnable
$31.20
16% OFF Phone Price : $37.20
In Stock
Furnace Secondary Heat Exchanger (replaces 2864605, 28646-05) 2864605S
#61A

Heat exchanger diagram

Furnace secondary heat exchanger (replaces 2864605, 28646-05)

Part #2864605S

$485.70
$12.00 OFF Phone Price : $497.70
In Stock
Goodman Primary Heat Exchanger 2821300S
#11A

Heat exchanger diagram

Goodman primary heat exchanger

Part #2821300S

In Stock
Furnace Air Pressure Switch B1370148
#111A

Cabinet diagram

Furnace air pressure switch

Part #B1370148

$54.89
10% OFF Phone Price : $60.89
In Stock
Furnace Temperature Limit Switch 1370906S
#21

Heat exchanger diagram

Furnace temperature limit switch

Part #1370906S

In Stock

Symptoms for gas pressure washers

Choose a symptom to see related pressure washer repairs.

Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system fai…

Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine nee…

Main causes: broken recoil spring, damaged recoil starter…

Main causes: dirty air filter, stale fuel, clogged or dirty carburetor, bad unloader valve…

Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stu…

Main causes: damaged recoil starter, oil inside cylinder, locked up engine piston…

Main causes: faulty unloader valve, bad pressure regulator…

Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad re…

Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, ba…

Repair guides for gas pressure washers

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

How to install a pressure washer check valve kit

How to install a pressure washer check valve kit

Air in the inlet water supply can damage the check valves. If the pump won’t build up pressure due to damaged check valv…

Repair difficulty
Time required
 120 minutes or less
How to install a pressure washer O-ring kit

How to install a pressure washer O-ring kit

O-rings seal fittings on the pressure washer pump. Damaged seals allow water to leak from the pump. Follow these steps t…

Repair difficulty
Time required
 45 minutes or less
How to install a pressure washer chemical injection kit

How to install a pressure washer chemical injection kit

The chemical injection valve draws detergent into the pump. If it’s not drawing detergent, use a repair kit to replace t…

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 pressure washer.

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.…

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.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…