Thermal Zone
Air Handler

Model #AH18A-1 Official Thermal Zone air handler

Here are the diagrams and repair parts for Thermal Zone AH18A-1 air handler, as well as links to manuals and error code tables, if available.

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Showing 10 of 15 parts

Motor#9

Air handlers Diagram

Motor

Part #913357

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

Motor Run Capacitor#8

Air handlers Diagram

Capacitor

Part #621435
Replaced by #12908
?
Manufacturer substitution
This part replaces 621435. Substitute parts can look different from the original.
This item is not returnable
In Stock
$5.26 | 
16% OFF 
Phone Price: $6.26
INDOOR COIL ASSEMBLY#13

Air handlers Diagram

Indoor coil assembly

Part #914418

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

CAP, TOP WITH INSULATION#1

Air handlers Diagram

Cap, top with insulation

Part #372105Z

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

DRAIN PAN ONLY, SLAB COILS#14

Air handlers Diagram

Drain pan only, slab coils

Part #668865

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

Filter Cover#15

Air handlers Diagram

Filter cover

Part #257961Z

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

Transformer#4

Air handlers Diagram

Transformer

Part #620858

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

UPPER DOOR WITH INSULATION#11

Air handlers Diagram

Upper door with insulation

Part #372401Z

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

ELECTRICAL PANEL ASSEMBLY#2

Air handlers Diagram

Electrical panel assembly

Part #470960

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

COMPLETE BLOWER ASSEMBLY, 10 X 6, 1/4 HP#6

Air handlers Diagram

Complete blower assembly, 10 x 6, 1/4 hp

Part #913875

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

Articles and videos common to all air handlers

August 5, 2022

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Lyle Weischwill

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.