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Thermal Zone
Air Handler

Model # AH30B-1 Official Thermal Zone air handler

Here are the diagrams and repair parts for Official Thermal Zone AH30B-1 air handler, 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 15 parts  |
Capacitor 621435
#8

Air handlers diagram

Capacitor

Part #621435

Replaced by #12908

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Manufacturer substitution
This part replaces 621435. Substitute parts can look different from the original.
This item is not returnable
$5.26 | 
16% OFF Phone Price : $6.26
In Stock
Motor 913357
#9

Air handlers diagram

Motor

Part #913357

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

Blower Wheel 667037
#7

Air handlers diagram

Blower wheel

Part #667037

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

Drain Pan Only , "a" Coils, B-cab 668717
#14

Air handlers diagram

Drain pan only , "a" coils, b-cab

Part #668717

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

Cap, Top With Insulation 372101Z
#1

Air handlers diagram

Cap, top with insulation

Part #372101Z

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

Transformer 620858
#4

Air handlers diagram

Transformer

Part #620858

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

Indoor Coil Assembly 914400
#13

Air handlers diagram

Indoor coil assembly

Part #914400

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

Blower Relay 620537
#3

Air handlers diagram

Blower relay

Part #620537

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

Lower Door With Insulation 499871Z
#12

Air handlers diagram

Lower door with insulation

Part #499871Z

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

Horizontal Drain Pan Assembly (not Shown) 914729
#16

Air handlers diagram

Horizontal drain pan assembly (not shown)

Part #914729

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

Repair guides for bottom-mount refrigerators

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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.…

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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…

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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…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your air handlers

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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.…

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