Coleman
Furnace

Model # UGAB100BUA Official Coleman gas furnace

Here are the diagrams and repair parts for Official Coleman UGAB100BUA 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 48 parts  |

Furnace Burner 2702-308P
#23

Functional replacement parts diagram

Furnace burner

Part #2702-308P

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

Furnace High-altitude Burner Orifice, 5,000 To 7,000-ft 9900-0861
#22C

Functional replacement parts diagram

Furnace high-altitude burner orifice, 5,000 to 7,000-ft

Part #9900-0861

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

Furnace Burner Flame Sensor 2702-311P
#8

Functional replacement parts diagram

Furnace burner flame sensor

Part #2702-311P

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

Gasket Package 2702-4051/A
#3

Functional replacement parts diagram

Gasket package

Part #2702-4051/A

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

Heat Exchanger Assembly 2703-5061/A
#2

Functional replacement parts diagram

Heat exchanger assembly

Part #2703-5061/A

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

Gas Valve 6302-326P
#21

Functional replacement parts diagram

Gas valve

Part #6302-326P

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

Control 2702-310P/A
#13

Functional replacement parts diagram

Control

Part #2702-310P/A

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

Run Capactr 1499-4461
#16

Functional replacement parts diagram

Run capactr

Part #1499-4461

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

Run Capactr 1499-4491
#16A

Functional replacement parts diagram

Run capactr

Part #1499-4491

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

Blower Assembly (05012a (x), 07512a (x) (all Models) 2703-690
#30

Functional replacement parts diagram

Blower assembly (05012a (x), 07512a (x) (all models)

Part #2703-690

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....