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Thermal Zone
Furnace

Model # GU040M12A Official Thermal Zone gas furnace

Here are the diagrams and repair parts for Official Thermal Zone GU040M12A 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 27 parts  |
Furnace Electronic Control Board 903106
#11

90+ upflow condensing furnace diagram

Furnace electronic control board

Part #903106

$297.66
In Stock
Orifice 661045
#16

90+ upflow condensing furnace diagram

Orifice

Part #661045

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

Blower Wheel 667251
#6

90+ upflow condensing furnace diagram

Blower wheel

Part #667251

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

Furnace Vent Limit Switch, 160-degree 626461
#27

90+ upflow condensing furnace diagram

Furnace vent limit switch, 160-degree

Part #626461

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

Central Air Conditioner Air Handler Drain Pan Connector 663714
#23

90+ upflow condensing furnace diagram

Central air conditioner air handler drain pan connector

Part #663714

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

Gas Valve 624586
#13

90+ upflow condensing furnace diagram

Gas valve

Part #624586

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

Pressure Swt 632252
#18

90+ upflow condensing furnace diagram

Pressure swt

Part #632252

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

Sensor Rod 632316
#15

90+ upflow condensing furnace diagram

Sensor rod

Part #632316

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

Furnace Temperature Limit Switch 626425
#19

90+ upflow condensing furnace diagram

Furnace temperature limit switch

Part #626425

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

Transformer 621486
#3

90+ upflow condensing furnace diagram

Transformer

Part #621486

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

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 15 minutes or less
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 15 minutes or less
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Repair difficulty
Time required
 45 minutes or less

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