Lennox
Furnace

Model # 1751 Official Lennox furnace

Here are the diagrams and repair parts for Official Lennox 1751 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 63 parts  |

Transformer 78H5501
#39A

Furnace diagram

Transformer

Part #78H5501

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

Burner LB-17431CB
#13

Furnace diagram

Burner

Part #LB-17431CB

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

Pilot Burner 18G9001
#37B

Furnace diagram

Pilot burner

Part #18G9001

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

Limit Control 10G5201
#17

Furnace diagram

Limit control

Part #10G5201

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

Blower Fan Wheel LB-29333BB
#51

Furnace diagram

Blower fan wheel

Part #LB-29333BB

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

Control 97H0401
#37A

Furnace diagram

Control

Part #97H0401

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

Transformer P-8-9490
#39

Furnace diagram

Transformer

Part #P-8-9490

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

Motor 45H3001
#52A

Furnace diagram

Motor

Part #45H3001

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

Flame Sensor 18G8901
#37C

Furnace diagram

Flame sensor

Part #18G8901

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

Motor 97H5701
#52

Furnace diagram

Motor

Part #97H5701

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

Repair guides for bottom-mount refrigerators

How to replace a door gasket in a French-door refrigerator

How to replace a door gasket in a French-door refrigerator

The door gasket, often called a door seal, seals the gap around the door to keep the cold air in and the warm air out. R…

Repair difficulty
Time required
 15 minutes or less
How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty
Time required
 15 minutes or less
How to replace a refrigerator defrost control assembly

How to replace a refrigerator defrost control assembly

Follow these steps to replace the defrost control assembly if your Kenmore or LG French door refrigerator displays an er…

Repair difficulty
Time required
 120 minutes or less

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