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Coleman
Furnace

Model # DGAA077BDTA Official Coleman furnace

Here are the diagrams and repair parts for Official Coleman DGAA077BDTA furnace, as well as links to manuals and error code tables, if available.

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Installation guide
Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 36 parts  |
Gas Valve 7990-328P
#6

Cabinet parts diagram

Gas valve

Part #7990-328P

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

Pressure Switch 02427666001
#1

Cabinet parts diagram

Pressure switch

Part #02427666001

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

Furnace Door Panel, Lower 7900-7611
#18

Cabinet parts diagram

Furnace door panel, lower

Part #7900-7611

$105.19 | 
10% OFF Phone Price : $117.19
In Stock
Furnace Upper Door Panel 7900-7631
#17

Cabinet parts diagram

Furnace upper door panel

Part #7900-7631

$169.09 | 
7% OFF Phone Price : $181.09
Back Order
Rckr Switc 7681-3301
#11

Cabinet parts diagram

Rckr switc

Part #7681-3301

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

Furnace Blower Fan Motor Mounting Kit (replaces 7670-5391) 37319806100
#20

Cabinet parts diagram

Furnace blower fan motor mounting kit (replaces 7670-5391)

Part #37319806100

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

Furnace Blower Wheel 02619654003
#23

Cabinet parts diagram

Furnace blower wheel

Part #02619654003

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

Diagram Wiring 03515289001
#30

Cabinet parts diagram

Diagram wiring

Part #03515289001

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

Run Capacitor 02420063000
#22

Cabinet parts diagram

Run capacitor

Part #02420063000

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

Exchanger 37319806651
#9

Cabinet parts diagram

Exchanger

Part #37319806651

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

Symptoms for upright freezers

Why does my freezer have a sheet of ice at the bottom?

Main causes: clogged or frozen defrost drain tube…

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Repair guides for upright freezers

How to replace a freezer control panel

How to replace a freezer control panel

A freezer control panel that doesn’t show the temperature or respond when you press the buttons could be broken. This DI…

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Repair difficulty
Time required
 15 minutes or less
How to replace a freezer door switch

How to replace a freezer door switch

When the door switch fails, the freezer can’t detect that the door is closed. Follow the steps in this repair guide to r…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a freezer thermistor

How to replace a freezer thermistor

When the thermistor can’t sense the freezer temperature, the freezer is colder or warmer than the set temperature. Follo…

Read more
Repair difficulty
Time required
 45 minutes or less

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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

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