Kenmore
Furnace

Model # 86773636 Official Kenmore gas-fired forced air wall furnace

Here are the diagrams and repair parts for Official Kenmore 86773636 gas-fired forced air wall 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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ALL PARTS
Showing 10 of 109 parts  |

Ferrule Nut 29441
#51

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
Tube Pilot 89030
#50

Unit parts diagram

Tube pilot

Part #89030

Replaced by #100108370

?
Manufacturer substitution
This part replaces 89030. 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
#71

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

Replaced by #H06E-36

?
Manufacturer substitution
This part replaces 503076. Substitute parts can look different from the original.
This item is not returnable
$14.52
12% OFF Phone Price : $16.52
Back Order
Pilot Burner 504456
#54B

Unit parts diagram

Pilot burner

Part #504456

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

Gas Valve Liquid Propane 504108
#46C

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 504455
#54A

Unit parts diagram

Pilot burner

Part #504455

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

Box 504449
#62

Unit parts diagram

Box

Part #504449

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

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

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

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

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

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

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 rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

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

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

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 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.…