Lennox G23Q3-100-4 Furnace Parts

Shop replacement repair parts for Lennox Furnace model G23Q3-100-4

icons/furnace
Brand:Lennox
Model:G23Q3-100-4
Product:Furnace
45 results
Skill Level (2)
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Product is a manufacturer part
22W78 Run Capacitor
$9.05

Run Capacitor. Single, Oval, 370 volt, 5 Microfarad.

Skill Level (2)
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Product is a bestsellerProduct is a manufacturer part
60L21 Blower Motor
$256.01

Furnace blower motor. This single-phase motor has the following specifications:

Horsepower: 1/3
Voltage: 115
Full-Load Amperage: 5.1
Hertz: 60
RPM: 1075
Speeds: 4
Rotation: Counterclockwise
Frame: 48
Enclosure: Open
Shaft Length: 4.25”

Skill Level (2)
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Product is a manufacturer part
22W79 Run Capacitor
$13.38

Capacitor single run 7.5 MFD 370 Volt oval

Skill Level (2)
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Product is a manufacturer part
42J32 Transformer
$29.56

Transformer, 120 Volt Primary 24 Volt Secondary 40 VA

Skill Level (2)
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Product is a manufacturer part
19S83 Control Board
$253.54

The control board regulates the supply of power to the furnace components. Be sure to check more commonly defective parts before replacing the control board.

Skill Level (3)
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Product is a manufacturer part
58L68 Gas Burner
$89.13

Main Gas Burner Assembly Four Tube

Skill Level (3)
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Product is a manufacturer part
60L22 Blower Motor
$492.00

1/2HP 115Volts 60Hz 8 amp 1075 RPM's 5 Speed Open Enclosure 48Y Frame Single Phase CCW 3" Shaft. Any unused wires will need to be taped off or put on the "park" terminals on the control board. These terminals are there specifically for unused wires.

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Lennox G23Q3-100-4 Problems & Repair Solutions

There are only a handful of issues that crop up with most appliances and equipment. Since 1912, we've learned to recognize the most common Lennox G23Q3-100-4 problems ― and their solutions. Do any of these look familiar?
Furnace not heating
30 possible causes and potential solutions
Furnace not heating
Furnace is noisy or loud
11 possible causes and potential solutions
Furnace is noisy or loud
Furnace starts then stops
13 possible causes and potential solutions
Furnace starts then stops

Frequently Purchased Together For This Model

Run Capacitor
Blower Motor
Run Capacitor
Transformer

Lennox G23Q3-100-4 Furnace Parts

Restore warmth and efficiency to your home by servicing your Lennox G23Q3-100-4 Furnace with genuine OEM replacement parts from Repair Clinic. Whether you’re tackling routine maintenance or resolving a no-heat issue, we carry a full inventory of compatible components to ensure your system operates reliably throughout the heating season.

The G23Q3-100-4 is part of the trusted Lennox G23 series gas furnace line, known for consistent heating and reliable performance. This model and similar ones like the G23Q3/4-100-2 and G23Q3/4-100-4 are designed to deliver efficient gas-powered heat. Repair Clinic makes it simple to locate parts using model-specific diagrams, common repair symptoms, or part category filters.

Our catalog includes high-demand items such as the Lennox G23 flame sensor, ignitor, draft inducer motor, control board, limit switch, and pressure switch. Whether you’re replacing components or cross-referencing a Lennox G23 parts list, we’ve got you covered with accurate specs and installation guidance.

Use our repair help resources and video tutorials to perform do-it-yourself maintenance, from troubleshooting burner ignition to replacing the blower motor. Whether you’re working with a G23Q3/4-100-2 or G23Q3-100-4, we provide detailed manuals and diagnostic tools to make every repair successful.

Why Choose Repair Clinic for G23Q3-100-4 Parts?

  • Genuine Lennox OEM replacement parts
  • Same-day shipping on in-stock items
  • 365-day, no-hassle return policy
  • Competitive price match guarantee
  • Free access to detailed repair guides and parts diagrams

Trust Repair Clinic to help you keep your Lennox G23Q3-100-4 Furnace running efficiently. Whether you’re replacing the ignitor, motor, or any other part, we provide the OEM-quality components and expert resources you need.

Frequently Asked Questions

1. What furnace series does the G23Q3-100-4 belong to?
This model is part of the Lennox G23 series gas furnace lineup, offering energy-efficient operation and compatibility with a wide range of genuine replacement parts.

2. Are G23Q3/4-100-4 and G23Q3/4-100-2 parts interchangeable?
Yes, many core parts like flame sensors, ignitors, and blower assemblies are interchangeable across these models. Always verify with the model-specific parts list or contact our support team for confirmation.

3. What are common issues with the Lennox G23 furnace?
Frequent issues include a faulty ignitor, dirty flame sensor, failed control board, or a malfunctioning draft inducer motor. These parts are easily found using the Repair Clinic site search.

4. Where can I get the Lennox G23 parts list?
You can access the full Lennox G23 parts list by searching your model number on Repair Clinic. Detailed diagrams and breakdowns are provided on the product page.

5. Does the G23Q3-100-4 come with a diagnostic LED?
Yes, most models in the G23 series include a diagnostic LED on the control board to help identify error codes and troubleshoot problems quickly.