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ICP
Heating & Cooling Combined Unit

Model # NPGAA18B1K3 Official ICP heating & cooling unit

Here are the diagrams and repair parts for Official ICP NPGAA18B1K3 heating & cooling unit, as well as links to manuals and error code tables, if available.

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  • 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”.

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Model diagram and schematic

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Showing 10 of 83 parts  |
Furnace Pilot Igniter And Sensor (replaces B14010-11s, Q3400a1040) 1009524
#19

Functional replacement diagram

Furnace pilot igniter and sensor (replaces b14010-11s, q3400a1040)

Part #1009524

$166.19
| 
7% OFF Phone Price : $178.19
In Stock
Cont Fan Tmr 1009837
#7

Control box diagram

Cont fan tmr

Part #1009837

Replaced by #1170063

?
Manufacturer substitution
This part replaces 1009837. Substitute parts can look different from the original.
$220.46
| 
5% OFF Phone Price : $232.46
In Stock
Furnace Flue Collector Box 1065256
#3

Functional replacement diagram

Furnace flue collector box

Part #1065256

$111.37
| 
10% OFF Phone Price : $123.37
In Stock
Tubing 64930
#23

Functional replacement diagram

Tubing

Part #64930

$77.80
In Stock
Gasket Coll 1065209
#2

Functional replacement diagram

Gasket coll

Part #1065209

$24.76
| 
20% OFF Phone Price : $30.76
In Stock
Drain Tube 1069172
#24

Functional replacement diagram

Drain tube

Part #1069172

$149.00
In Stock
Shield Burne 1054449
#8

Non-functional replacement diagram

Shield burne

Part #1054449

$351.75
In Stock
Orifice Fan 1065724
#3

Non-functional replacement diagram

Orifice fan

Part #1065724

$47.36
In Stock
Furnace Vent Motor Gasket 607014
#4

Functional replacement diagram

Furnace vent motor gasket

Part #607014

This item is not returnable
$44.60
In Stock
Mtr Blr / / 1065281
#2

Blower diagram

Mtr blr / /

Part #1065281

$589.63
In Stock

Most common symptoms to help you fix your heating & cooling combined units

Choose a symptom to see related heating and air conditioning system repairs.

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Why is my furnace not blowing hot enough?

Thermostat problem, clogged air filter, burner failure...

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Why isn’t my air conditioner cooling well?

Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor...

Read more

Why isn’t my air conditioner cooling?

Thermostat problems, bad compressor/condenser fan capacitor, lack of refrigerant, failed compressor...

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Why won’t my furnace burners won’t stay lit?

Dirty flame sensor, failed flame sensor, damaged burner, bad high limit switch...

Read more

Why won't my air conditioner turn on?

Main causes: errant thermostat settings, lack of electrical power, clogged drain line, wiring failure, control failure....

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Why won't my furnace turn on?

Main causes: Errant thermostat settings, lack of power, bad interlock switches, lack of exhaust ventilation, wiring fail...

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Most common repair guides to help fix your heating & cooling combined units

These step-by-step repair guides will help you safely fix what’s broken on your HVAC system.

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How to unclog the air conditioner drain line

How to unclog the air conditioner drain line

The condensate drain line for your central air conditioner can clog with mold and mildew. Water will back up and start d...

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Repair difficulty
Time required
15 minutes or less
How to replace the furnace flame sensor

How to replace the furnace flame sensor

The flame sensor detects when furnace burner flames are lit. You may need to replace the flame sensor if flames only sta...

Read more
Repair difficulty
Time required
15 minutes or less
How to replace a heating and air conditioning system thermostat

How to replace a heating and air conditioning system thermostat

The control thermostat for your HVAC system can stop working. This repair guide shows how to replace it....

Read more
Repair difficulty
Time required
30 minutes or less

Effective articles & videos to help repair your heating & cooling combined units

Use the advice and tips in these articles and videos to get the most out of your HVAC system.

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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 enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier....

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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....

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