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ICP
Heating & Cooling Combined Unit

Model # NPGAA18B1K1 Official ICP package gas/electric combination unit single phase

Here are the diagrams and repair parts for Official ICP NPGAA18B1K1 package gas/electric combination unit single phase, 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 94 parts  |
Contactor 1050699
#2

Control box diagram

Contactor

Part #1050699

Replaced by #94-388

?
Manufacturer substitution
This part replaces 1050699. Substitute parts can look different from the original.
$33.20 | 
15% OFF Phone Price : $39.20
In Stock
Capacitor 602974
#11

Blower diagram

Capacitor

Part #602974

Replaced by #12005

?
Manufacturer substitution
This part replaces 602974. Substitute parts can look different from the original.
$16.49 | 
11% OFF Phone Price : $18.49
In Stock
Furnace Fan Control Relay 1000742
#7

Control box diagram

Furnace fan control relay

Part #1000742

$35.62 | 
14% OFF Phone Price : $41.62
In Stock
Furnace Flue Collector Box 1065256
#3

Functional diagram

Furnace flue collector box

Part #1065256

$111.37 | 
10% OFF Phone Price : $123.37
In Stock
Furnace Inducer Vent Motor Assembly 1054268

#NI

All parts diagram

Furnace inducer vent motor assembly

Part #1054268

$297.67 | 
$12.00 OFF Phone Price : $309.67
In Stock
Flame Sensor 612921
#21

Functional diagram

Flame sensor

Part #612921

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

Switch 1005548
#7

Functional diagram

Switch

Part #1005548

Replaced by #1013101

?
Manufacturer substitution
This part replaces 1005548. Substitute parts can look different from the original.
$19.09
In Stock
Valve 1005597
#9

Functional diagram

Valve

Part #1005597

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

Flame Sensor 612922
#21A

Functional diagram

Flame sensor

Part #612922

Replaced by #1149944

?
Manufacturer substitution
This part replaces 612922. Substitute parts can look different from the original.
$118.36 | 
9% OFF Phone Price : $130.36
In Stock
Support Flue 1054511
#12

Non-functional diagram

Support flue

Part #1054511

$202.76
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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Dirty air filter, clogged condenser coils, low refrigerant charge, faulty compressor…

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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…

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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

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
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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…

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Repair difficulty
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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.…

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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

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

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