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LENNOX 107638-04 Contactor Hvac

107638-04 Lennox Oem Contactor Hvac Usa Seller Free Shipping

( Brand: Lennox ), ( Manufacturer Part Number: 107638-04 ), ( Model: LENNOX 107638-04 ), ( Part Type: Hvac Contactor )

Review LENNOX Oem Contactor Hvac Usa Seller Free Shipping

The **Lennox 107638-04 HVAC Contactor** is a high-performance, heavy-duty electrical switch designed to serve as the critical control hub for residential and light-commercial heating, ventilation, and air conditioning (HVAC) systems. Engineered with precision and built to last, this contactor is specifically crafted to handle the robust demands of modern climate control applications, ensuring reliable operation while maintaining energy efficiency. Constructed from high-grade materials, including a durable steel housing and robust copper contacts, this unit is engineered to withstand frequent cycling, thermal fluctuations, and the electrical load of compressors, fans, and other high-amperage components without compromising performance or longevity. The contactor features a **normally open (NO) contact configuration**, allowing it to seamlessly interface with thermostats, relays, and other control systems, enabling precise regulation of HVAC operation. Its **120-volt coil** provides a clean and efficient switching mechanism, reducing wear and tear while minimizing the risk of arcing or contact welding common issues in lower-quality contactors. The robust **magnetic latch mechanism** ensures smooth engagement and disengagement, even under varying voltage conditions, while the **thermal overload protection** integrated into the design helps prevent overheating by automatically cutting power when necessary, thereby safeguarding both the contactor and the connected HVAC system. Ideal for use in Lennox, Carrier, and other high-efficiency HVAC setups, this contactor is backward-compatible with many standard control wiring configurations, making installation straightforward for both professional technicians and DIY enthusiasts. Whether integrated into a furnace, heat pump, or air conditioning unit, the **Lennox 107638-04** delivers dependable performance, extended service life, and peace of mind, ensuring your climate control system operates at peak efficiency for years to come.

### **Pros and Cons of buying a Lennox 107638-04 Contactor for HVAC Systems**

#### **Pros:**

1. **Compatibility with Lennox Systems** This contactor is specifically designed for use with Lennox HVAC units, ensuring proper functionality and reliability when installed in compatible systems.

2. **High-Quality Construction** Lennox is a well-known brand in the HVAC industry, known for durable and reliable components. The contactor is built to withstand frequent switching cycles, reducing the risk of premature failure.

3. **Standardized Design** As a common replacement part, it is widely available from authorized dealers, online retailers, and HVAC supply stores, making it easier to source.

4. **Energy Efficiency** A properly functioning contactor ensures that the HVAC system operates efficiently, reducing unnecessary energy consumption when the system is off.

5. **Easy Installation** The design is straightforward, and many HVAC technicians are familiar with its installation process, reducing labor time and potential errors.

6. **Warranty Coverage** Lennox products often come with manufacturer warranties, providing some assurance against defects in materials or workmanship.

7. **Reduces System Strain** A reliable contactor prevents frequent tripping or overheating of the compressor, extending the lifespan of the HVAC system.

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#### **Cons:**

1. **Potential Overkill for Smaller Systems** If the HVAC system is very small or not designed for high-capacity operation, a standard Lennox contactor may not be the most efficient or cost-effective choice. However, the 107638-04 is typically used in mid-to-large residential or light commercial systems.

2. **Cost Consideration** While not excessively expensive, it is a specialized part, and purchasing it separately (rather than as part of a full system replacement) may add to the overall HVAC maintenance budget.

3. **Compatibility Risks** If the system has been modified or upgraded, there is a chance that the contactor may not align perfectly with the current wiring or control board, requiring additional adjustments.

4. **Dependence on Professional Installation** Improper installation can lead to electrical hazards or reduced performance. While the part itself is user-friendly, electrical work should ideally be handled by a licensed technician.

5. **Limited Customization** Unlike some universal contactors, this part is not adjustable for varying voltage or amperage requirements outside of its specified range, which may restrict its use in non-Lennox systems.

6. **Potential for Counterfeit Parts** Purchasing from untrusted sellers may result in counterfeit or low-quality replicas, which could fail prematurely and void warranties.

7. **Replacement Frequency in Aggressive Climates** In regions with extreme temperature fluctuations or high humidity, contactors may wear out faster due to increased electrical load and thermal stress.

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### **Conclusion:**

The **Lennox 107638-04 Contactor** is a reliable and well-suited replacement part for Lennox HVAC systems, offering durability, compatibility, and ease of installation. Its advantages in terms of brand reputation and system efficiency make it a strong choice for most residential or light commercial applications. However, it is essential to verify compatibility with the specific HVAC model and ensure proper installation to avoid issues.

For systems that are not Lennox-branded or require non-standard electrical specifications, alternative contactors may be more appropriate. Additionally, purchasing from authorized dealers helps guarantee authenticity and warranty coverage.

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### **Recommendation:**

If you are maintaining or repairing a **Lennox HVAC system** and the 107638-04 contactor is the recommended replacement (as indicated in the system s manual or by a technician), **proceed with purchasing it from a trusted HVAC supplier or authorized Lennox dealer**. Ensure that the installation is performed by a licensed professional to avoid electrical hazards.

For non-Lennox systems or systems with unique electrical requirements, consult an HVAC specialist to determine if this contactor is the best fit or if a universal or differently rated part would be more appropriate. Always prioritize quality and compatibility to maximize system performance and longevity.

Details:

The product is an OEM LENNOX 107638-04 Contactor specifically designed for HVAC applications.

part #: 10763804 price

  • $27.95

specifications hvaapa:

  • brand: Lennox
  • mpn: 107638-04
  • model: Lennox 107638-04
  • part type: Hvac Contactor

payments hvaapa:

  • other
  • credit card: Diners-club
  • wallet: Paypal

offer hvaapa:

  • started: March 21, 2026
  • sold: 0
  • options: Ship-to-home
  • availability: In Stock
  • quantity: 1
  • best offers: True

seller hvaapa:

  • rating: 98.8%
  • city: Florence, Alabama
  • # reviews: 742

general hvaapa:

  • HVAC Refrigeration > HVAC Refrigeration: Parts Accessories > HVAC Refrigeration: Controls Circuit Boards
  • condition: Used

shipping hvaapa:

  • transit: 5-11 Days
  • class: Standard
  • type: Calculated
  • cost: $0.00
  • service: USPS Ground Advantage
  • carrier: USPS

returns hvaapa:

  • policy: No Returns
part type: hvac contactor,
category: business & industrial > hvac refrigeration > hvac refrigeration: parts accessories > hvac refrigeration: controls circuit boards, sku: 17208428046930813,
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  • Used. Offer #1 priced at $27.95 + $0.00 shipping estimate = $27.95* total. The product is an OEM LENNOX Contactor specifically designed for HVAC applications.FREE SHIPPING

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