GMC
Air Handler

Model # A18-05C Official GMC air handler with coil

Here are the diagrams and repair parts for Official GMC A18-05C air handler with coil, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 43 parts  |

Air Handler Transformer B1141643
#111

Air handler with coil diagram

Air handler transformer

Part #B1141643

Replaced by #0130M00138S

?
Manufacturer substitution
This part replaces B1141643. Substitute parts can look different from the original.
This item is not returnable
$50.26
11% OFF Phone Price : $56.26
In Stock
Central Air Conditioner Air Handler Blower Motor B13400312S
#131

Air handler with coil diagram

Central air conditioner air handler blower motor

Part #B13400312S

$371.59
$12.00 OFF Phone Price : $383.59
In Stock
Lower Panel 1722055P
#51

Air handler with coil diagram

Lower panel

Part #1722055P

In Stock
Central Air Conditioner Air Handler Blower Motor B13400313S
#131A

Air handler with coil diagram

Central air conditioner air handler blower motor

Part #B13400313S

$311.70
$12.00 OFF Phone Price : $323.70
In Stock
Central Air Conditioner Evaporator Coil Drip Pan B1755929L
#211

Air handler with coil diagram

Central air conditioner evaporator coil drip pan

Part #B1755929L

$80.11
7% OFF Phone Price : $86.11
In Stock
Furnace Heating Element Assembly (replaces B10374-85) B1037485S
#71C

Air handler with coil diagram

Furnace heating element assembly (replaces b10374-85)

Part #B1037485S

$80.25
7% OFF Phone Price : $86.25
In Stock
Central Air Conditioner Air Handler Blower Wheel B1368042S
#141A

Air handler with coil diagram

Central air conditioner air handler blower wheel

Part #B1368042S

In Stock
Central Air Conditioner Air Handler Heater B1037487S
#71D

Air handler with coil diagram

Central air conditioner air handler heater

Part #B1037487S

$123.72
9% OFF Phone Price : $135.72
In Stock
Furnace Heating Element Assembly (replaces B1037488, B10374-88) B1037488S
#71

Air handler with coil diagram

Furnace heating element assembly (replaces b1037488, b10374-88)

Part #B1037488S

$141.73
8% OFF Phone Price : $153.73
In Stock
Furnace Heater Element With Limit Switch (replaces B10374-89) B1037489S
#71A

Air handler with coil diagram

Furnace heater element with limit switch (replaces b10374-89)

Part #B1037489S

$213.29
5% OFF Phone Price : $225.29
In Stock

Repair guides for bottom-mount refrigerators

How to replace a flipper mullion on a French-door refrigerator

How to replace a flipper mullion on a French-door refrigerator

If the flipper mullion breaks or its heater quits working, replace it in 15 minutes using these 4 easy steps.…

Repair difficulty
Time required
 15 minutes or less
How to replace a door gasket in a French-door refrigerator

How to replace a door gasket in a French-door refrigerator

The door gasket, often called a door seal, seals the gap around the door to keep the cold air in and the warm air out. R…

Repair difficulty
Time required
 15 minutes or less
How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your air handlers

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.…