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Payne
Heating & Cooling Combined Unit

Model # PY1PNB018040 Official Payne gas heating & electric cooling

Here are the diagrams and repair parts for Official Payne PY1PNB018040 gas heating & electric cooling, as well as links to manuals and error code tables, if available.

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Installation guide
Owner’s manual

Model diagram and schematic

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Showing 10 of 96 parts  |
Contactor HN51JD024
#38B

Interior parts diagram

Contactor

Part #HN51JD024

Replaced by #90-244

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Manufacturer substitution
This part replaces HN51JD024. Substitute parts can look different from the original.
BEST SELLER
$26.61 | 
18% OFF Phone Price : $32.61
In Stock
Capactr Run P291-1003
#48B

Interior parts diagram

Capactr run

Part #P291-1003

Replaced by #12908

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Manufacturer substitution
This part replaces P291-1003. Substitute parts can look different from the original.
This item is not returnable
$5.26 | 
16% OFF Phone Price : $6.26
In Stock
Circ Board LH33WP003
#38D

Interior parts diagram

Circ board

Part #LH33WP003

$495.60 | 
$12.00 OFF Phone Price : $507.60
In Stock
Furnace Heat Exchanger Cover 48GS400108
#86

Gas section diagram

Furnace heat exchanger cover

Part #48GS400108

$325.53 | 
$12.00 OFF Phone Price : $337.53
In Stock
Blower Assembly 48GS400106
#87

Gas section diagram

Blower assembly

Part #48GS400106

Replaced by #48GS400649

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Manufacturer substitution
This part replaces 48GS400106. Substitute parts can look different from the original.
$708.46 | 
$12.00 OFF Phone Price : $720.46
In Stock
Switch HH18HA460
#94

Gas section diagram

Switch

Part #HH18HA460

$77.49
In Stock
Cap DD19PA062
#67

Evaporator diagram

Cap

Part #DD19PA062

This item is not returnable
$3.29
In Stock
Rack 0900003A
#157

Accessory 2 diagram

Rack

Part #0900003A

$176.16
In Stock
Insulation 48GS500191
#26

Interior parts diagram

Insulation

Part #48GS500191

$76.73
In Stock
Temp Swtch HH18HA211
Temp swtch

Part #HH18HA211

$25.71
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…

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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 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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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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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…

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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.…

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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 prevent the 2 most common AC failures from ruining your summer

How to prevent the 2 most common AC failures from ruining your summer

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Top questions about Sears and Sears PartsDirect

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