Thermal Zone
Central Air Conditioner

Model # PH42K-1 Official Thermal Zone 10 seer split-system heat pump

Here are the diagrams and repair parts for Official Thermal Zone PH42K-1 10 seer split-system heat pump, 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 51 parts  |

Accumulatr 668793
#11

10 seer split system heat pump diagram

Accumulatr

Part #668793

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

Fan Motor 621721
#2

10 seer split system heat pump diagram

Fan motor

Part #621721

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

Blower Wheel 667037
#26

10 seer split system heat pump diagram

Blower wheel

Part #667037

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

Compressor 912958
#10

10 seer split system heat pump diagram

Compressor

Part #912958

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

Capacitor 621435
#39

10 seer split system heat pump 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
$5.26
16% OFF Phone Price : $6.26
In Stock
Capacitor 620968
#40

10 seer split system heat pump diagram

Capacitor

Part #620968

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

Distributor Assembly 663581
#22

10 seer split system heat pump diagram

Distributor assembly

Part #663581

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

Blower Box Cover D03340
#29

10 seer split system heat pump diagram

Blower box cover

Part #D03340

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

Control Panel D02883
#35

10 seer split system heat pump diagram

Control panel

Part #D02883

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

Blower Relay 621097
#36

10 seer split system heat pump diagram

Blower relay

Part #621097

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

Effective articles & videos to help repair your central air conditioners

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....