Furnace

Model # 86773645 Official Kenmore gas-fired direct vent wall furnace

Here are the diagrams and repair parts for Official Kenmore 86773645 gas-fired direct vent wall furnace, as well as links to manuals and error code tables, if available.

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Browse Parts for
86773645 Gas-Fired Direct Vent Wall Furnace
Thermostat 504792

#NI

All parts diagram

Thermostat

Part #504792

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

Tubing Pilot 89031
#55

Unit parts diagram

Tubing pilot

Part #89031

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

Thermocouple 503758
#51

Unit parts diagram

Thermocouple

Part #503758

Replaced by #H06E-36

?
Manufacturer substitution
This part replaces 503758. Substitute parts can look different from the original.
$14.91
12% OFF Phone Price : $16.91
In Stock
Switch 502171
#34

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
Ferrule Nut 29441
#54

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
Natural Valve 504107
#71A

Unit parts diagram

Natural valve

Part #504107

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

Gas Valve Liquid Propane 504108
#71C

Unit parts diagram

Gas valve liquid propane

Part #504108

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 503051
#52B

Unit parts diagram

Pilot burner

Part #503051

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

Support 504241
#84

Unit parts diagram

Support

Part #504241

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

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower drive cable

How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower starter rope

How to replace a lawn mower starter rope

These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.…

Repair difficulty
Time required
 30 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 walk-behind lawn mower.

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.…