Central Air Conditioner

Model # CX42-1 Official GMC condensing unit

Here are the diagrams and repair parts for Official GMC CX42-1 condensing unit, as well as links to manuals and error code tables, if available.

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Browse Parts for
CX42-1 Condensing Unit
Filter Drier B12192-17
#18

Unit parts diagram

Filter drier

Part #B12192-17

Replaced by #163S

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Manufacturer substitution
This part replaces B12192-17. Substitute parts can look different from the original.
$48.94
11% OFF Phone Price : $54.94
In Stock
Contactor 25 B13603-21
#16

Unit parts diagram

Contactor 25

Part #B13603-21

Replaced by #94-388

?
Manufacturer substitution
This part replaces B13603-21. Substitute parts can look different from the original.
$33.20
15% OFF Phone Price : $39.20
In Stock
Fan Blade, 1 B10867-56
#1

Unit parts diagram

Fan blade, 1

Part #B10867-56

Replaced by #B1086756S

?
Manufacturer substitution
This part replaces B10867-56. Substitute parts can look different from the original.
In Stock
Capacitor 40 B9457-5600
#17

Unit parts diagram

Capacitor 40

Part #B9457-5600

Replaced by #STD379405

?
Manufacturer substitution
This part replaces B9457-5600. Substitute parts can look different from the original.
In Stock
Plastic Vent 17878-10
#5

Unit parts diagram

Plastic vent

Part #17878-10

Replaced by #B1787810

?
Manufacturer substitution
This part replaces 17878-10. Substitute parts can look different from the original.
In Stock
Base Valve 3 B12825-40
#2

Unit parts diagram

Base valve 3

Part #B12825-40

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

Right Corner 17874-23P
#13

Unit parts diagram

Right corner

Part #17874-23P

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

Top Panel 17794-01P
#10

Unit parts diagram

Top panel

Part #17794-01P

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

Valve Core C B17870-00
#6

Unit parts diagram

Valve core c

Part #B17870-00

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

Cond Coil, 2 12648-06
#9

Unit parts diagram

Cond coil, 2

Part #12648-06

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 central air conditioners

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

Maintaining your air conditioner

Maintaining your air conditioner

Learn how to maintain your central air conditioner to keep it running smoothly all summer long.…

How to prevent the 2 most common AC failures from ruining your summer

How to prevent the 2 most common AC failures from ruining your summer

Get tips to help keep your central AC running all summer long…

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.…