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Thermal Zone
Furnace

Model # GD072K16B Official Thermal Zone gas furnace

Here are the diagrams and repair parts for Official Thermal Zone GD072K16B 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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Showing 10 of 30 parts  |
Capacitor 621435
#23A

80+ downflow furnace diagram

Capacitor

Part #621435

Replaced by #12908

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Manufacturer substitution
This part replaces 621435. Substitute parts can look different from the original.
This item is not returnable
$5.26 | 
16% OFF Phone Price : $6.26
In Stock
Furnace Blower Assembly 902815
#25

80+ downflow furnace diagram

Furnace blower assembly

Part #902815

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

Furnace Electronic Control Board 903106
#27

80+ downflow furnace diagram

Furnace electronic control board

Part #903106

$297.66
In Stock
Transformer 621486
#26

80+ downflow furnace diagram

Transformer

Part #621486

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

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

Motor 902128
#22

80+ downflow furnace diagram

Motor

Part #902128

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

Access Door (not Shown) 903116Z
#30

80+ downflow furnace diagram

Access door (not shown)

Part #903116Z

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

Hose, High - Temp Silicone (not Shown) 257843
#18

80+ downflow furnace diagram

Hose, high - temp silicone (not shown)

Part #257843

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

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Repair difficulty
Time required
 30 minutes or less

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