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Armstrong
Central Air Conditioner

Model # PWC18E7.2-1 Official Armstrong heat pump

Here are the diagrams and repair parts for Official Armstrong PWC18E72-1 heat pump, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 34 parts  |
Stat-line 31763B1
#331

Thru the wall heat pump diagram

Stat-line

Part #31763B1

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

Coil-indoor 33972D1
#25

Thru the wall heat pump diagram

Coil-indoor

Part #33972D1

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

Coil Rev Vlv 3098B2
#313

Thru the wall heat pump diagram

Coil rev vlv

Part #3098B2

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

Transformer 6587B
#18

Thru the wall heat pump diagram

Transformer

Part #6587B

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

Terminal Panel 8061B
#23

Thru the wall heat pump diagram

Terminal panel

Part #8061B

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

Wall Thermostat 34154C1
#34

Thru the wall heat pump diagram

Wall thermostat

Part #34154C1

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

Contactor 4123B
#255

Thru the wall heat pump diagram

Contactor

Part #4123B

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

Relay Hw 7489B6
#63

Thru the wall heat pump diagram

Relay hw

Part #7489B6

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

Accumulator 30958C6
#330

Thru the wall heat pump diagram

Accumulator

Part #30958C6

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

Valve&tube 34249C1
#324

Thru the wall heat pump diagram

Valve&tube

Part #34249C1

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

Symptoms for gas ranges

Why won't my range's gas burner spark or ignite?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure…

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Why isn't my range's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, control system failure, faulty t…

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Repair guides for gas ranges

How to replace oven door hinges on a gas range

How to replace oven door hinges on a gas range

See how to replace the oven door hinges on a gas range yourself, in just 30 minutes.…

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Repair difficulty
Time required
 15 minutes or less
How to replace a range spark module

How to replace a range spark module

Follow these step-by-step instructions to put the fire back into the surface burners on your gas range by replacing the …

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a range spark igniter switch

How to replace a range spark igniter switch

Follow these steps to replace the spark igniter switch—sometimes called a burner switch or spark switch—on a gas or dual…

Read more
Repair difficulty
Time required
 60 minutes or less

Effective articles & videos to help repair your central air conditioners

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Maintaining your air conditioner

Maintaining your air conditioner

Learn how to maintain your central air conditioner to keep it running smoothly all summer long.…

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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…

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