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Thermal Zone
Furnace

Model # GD072K12A Official Thermal Zone gas furnace

Here are the diagrams and repair parts for Official Thermal Zone GD072K12A gas furnace, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 29 parts  |
Furnace Electronic Control Board 903106
#27

80+ downflow furnace diagram

Furnace electronic control board

Part #903106

$297.66
In Stock
Limit Switch 626419
#20

80+ downflow furnace diagram

Limit switch

Part #626419

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

Blower Wheel 667251
#21

80+ downflow furnace diagram

Blower wheel

Part #667251

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

Transformer 621486
#26

80+ downflow furnace diagram

Transformer

Part #621486

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

Sensor Rod 632316
#6

80+ downflow furnace diagram

Sensor rod

Part #632316

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

Switch 632212
#19

80+ downflow furnace diagram

Switch

Part #632212

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

Gas Valve 624586
#2

80+ downflow furnace diagram

Gas valve

Part #624586

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

Furnace Burner 660812
#1

80+ downflow furnace diagram

Furnace burner

Part #660812

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

Adaptor, 4" Round Assembly 368342
#15

80+ downflow furnace diagram

Adaptor, 4" round assembly

Part #368342

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

Tube, Combustion, Insulated 262810
#16

80+ downflow furnace diagram

Tube, combustion, insulated

Part #262810

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

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How to rebuild a line trimmer carburetor

If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow…

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 15 minutes or less
How to replace a line trimmer carburetor

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 15 minutes or less
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How to replace a line trimmer fuel line

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