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GMC
Air Handler

Model # A42-20 Official GMC air handler with coil

Here are the diagrams and repair parts for Official GMC A42-20 air handler with coil, 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 40 parts  |
Transformer B11416-43
#12

Air handler diagram

Transformer

Part #B11416-43

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

Heating Elem B10374-68
#7A

Air handler diagram

Heating elem

Part #B10374-68

Replaced by #B1037488S

?
Manufacturer substitution
This part replaces B10374-68. Substitute parts can look different from the original.
$141.73 | 
8% OFF Phone Price : $153.73
In Stock
Heating Elem B10374-67
#7

Air handler diagram

Heating elem

Part #B10374-67

Replaced by #B1037485S

?
Manufacturer substitution
This part replaces B10374-67. Substitute parts can look different from the original.
$80.25 | 
7% OFF Phone Price : $86.25
In Stock
Time Delay B13707-38
#11

Air handler diagram

Time delay

Part #B13707-38

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

Sequencer A- B12565-52
#9A

Air handler diagram

Sequencer a-

Part #B12565-52

Replaced by #24A34-3

?
Manufacturer substitution
This part replaces B12565-52. Substitute parts can look different from the original.
$29.43 | 
17% OFF Phone Price : $35.43
In Stock
Blower Wheel B13680-36
#16

Air handler diagram

Blower wheel

Part #B13680-36

Replaced by #B1368036S

?
Manufacturer substitution
This part replaces B13680-36. Substitute parts can look different from the original.
$102.07 | 
11% OFF Phone Price : $114.07
In Stock
Circuit Breaker B17535-10
#8

Air handler diagram

Circuit breaker

Part #B17535-10

Replaced by #CBK2PD240VC030S

?
Manufacturer substitution
This part replaces B17535-10. Substitute parts can look different from the original.
$96.82
In Stock
Motor 1/3 Hp B13400-312
#15A

Air handler diagram

Motor 1/3 hp

Part #B13400-312

Replaced by #B13400312S

?
Manufacturer substitution
This part replaces B13400-312. Substitute parts can look different from the original.
$371.59 | 
$12.00 OFF Phone Price : $383.59
In Stock
Plastic Hori 17559-30
#23

Air handler diagram

Plastic hori

Part #17559-30

Replaced by #B1755930L

?
Manufacturer substitution
This part replaces 17559-30. Substitute parts can look different from the original.
$93.22
In Stock
Sequencer B12565-51
#9

Air handler diagram

Sequencer

Part #B12565-51

Replaced by #B1256558

?
Manufacturer substitution
This part replaces B12565-51. Substitute parts can look different from the original.
$38.87
In Stock

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