Sears
Furnace

Model # 867736318 Official Sears direct vent gas-fired wall furnaces

Here are the diagrams and repair parts for Official Sears 867736318 direct vent gas-fired wall furnaces, 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 108 parts  |

Pilot Tube 90655
#49

Unit parts diagram

Pilot tube

Part #90655

Replaced by #100108370

?
Manufacturer substitution
This part replaces 90655. Substitute parts can look different from the original.
In Stock
Thermostat 504792

#NI

All parts diagram

Thermostat

Part #504792

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

Switch 502171
#31

Unit parts diagram

Switch

Part #502171

Replaced by #505962

?
Manufacturer substitution
This part replaces 502171. Substitute parts can look different from the original.
In Stock
Thermocouple 503076
#53

Unit parts diagram

Thermocouple

Part #503076

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

Ferrule Nut 29441
#50

Unit parts diagram

Ferrule nut

Part #29441

Replaced by #100108370

?
Manufacturer substitution
This part replaces 29441. Substitute parts can look different from the original.
In Stock
Pilot Burner 503471
#52A

Unit parts diagram

Pilot burner

Part #503471

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

Pilot Burner 503470
#51B

Unit parts diagram

Pilot burner

Part #503470

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

Guarantee F642-18169A

#NI

All parts diagram

Guarantee

Part #F642-18169A

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

Pilot Burner 503469
#51A

Unit parts diagram

Pilot burner

Part #503469

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

Pilot Burner 505186
#52B

Unit parts diagram

Pilot burner

Part #505186

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

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

Main causes: faulty sensors, wiring failure, bad control console…

Main causes: bad control console, wiring failure, bad motor control board…

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking belt

How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…

Repair difficulty
Time required
 45 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your furnaces

Use the advice and tips in these articles and videos to get the most out of your treadmill.

How to get your furnace ready for winter

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.…

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…