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Lennox 71W44 Limit Control Switch – Genuine OEM Furnace Limit Safety Control 145°F Open / 115°F Reset

Lennox 71W44 Limit Control Switch – Genuine OEM Furnace Limit Safety Control 145°F Open / 115°F Reset

Low stock: 1 left

Regular price $69.91 USD
Regular price Sale price $69.91 USD
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Shipping calculated at checkout.

Key Features & Specifications

  • Genuine OEM Lennox furnace limit control switch

  • Opens at 145°F and resets automatically at 115°F

  • Blue sleeve identification with left orientation design

  • 5-inch overall length for direct OEM replacement

  • Protects furnace systems from overheating conditions

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Specifications

Product Details and Key Specifications:

Part Number: 102857-04
Catalog Number: 71W44
Manufacturer: Lennox (Genuine OEM)
Part Type: Furnace Limit Control Switch (STILT)
Actuation Temperature: 145°F
Reset Temperature: 115°F
Sleeve Color: Blue
Orientation: Left
Overall Length (OAL): 5 Inches
Application: Furnace High Limit Safety Protection
Function: Opens on High Temperature / Auto Reset Safety Control
Compatible Brands: Lennox
Shipping Weight: Approx. 1 lb

description

Lennox 102857-04 Limit Control Switch – Genuine OEM Furnace Limit Safety Control 145°F Open / 115°F Reset

The Lennox 102857-04 Limit Control Switch is a genuine OEM furnace safety limit control designed to protect residential HVAC heating systems from overheating conditions. Engineered to actuate at 145°F and automatically reset at 115°F, this safety switch helps maintain safe furnace operation by interrupting the heating cycle if excessive temperatures are detected inside the furnace cabinet or heat exchanger area.

Built to OEM specifications for reliable compatibility and dependable long-term operation, the 102857-04 limit control features a blue sleeve identification marker, left orientation design, and a 5-inch overall length (OAL) for direct replacement installation in Lennox furnace systems. Its automatic reset functionality helps restore normal furnace operation once safe operating temperatures return.


Key Features and Function:

Overheat Furnace Protection – Opens at 145°F to prevent unsafe temperature conditions
Automatic Reset Function – Resets at 115°F after temperatures normalize
Genuine OEM Compatibility – Designed specifically for Lennox furnace systems
Direct-Fit Safety Replacement – Left orientation and 5" OAL for OEM installation compatibility


Product Details and Key Specifications:

Part Number: 102857-04
Catalog Number: 71W44
Manufacturer: Lennox (Genuine OEM)
Part Type: Furnace Limit Control Switch (STILT)
Actuation Temperature: 145°F
Reset Temperature: 115°F
Sleeve Color: Blue
Orientation: Left
Overall Length (OAL): 5 Inches
Application: Furnace High Limit Safety Protection
Function: Opens on High Temperature / Auto Reset Safety Control
Compatible Brands: Lennox
Shipping Weight: Approx. 1 lb


🛠️ HVAC Depot Pro Tip: Check Airflow Restrictions Before Replacing a Limit Switch

A failed limit control switch is often caused by restricted airflow conditions such as dirty filters, blocked vents, clogged evaporator coils, or blower motor problems. Before replacing the limit switch, inspect the entire airflow system to prevent repeated overheating and premature safety switch failure.


Cross-Reference & Compatibility:

The Lennox 102857-04 is a direct OEM replacement for the following applications:

OEM Numbers: 102857-04
Catalog Number: 71W44
Compatible Brands: Lennox
Application Type: Furnace High Limit Safety Controls
Switch Style: Automatic Reset Limit Control (STILT)


Extensive Model Compatibility List:

Compatible Lennox Furnace Series:

• G40 Series Furnaces
• G50 Series Furnaces
• G60 Series Furnaces
• Elite Series Gas Furnaces
• Merit Series Furnaces
• High-Efficiency Lennox Furnaces
• Residential Gas Heating Systems
• Select Lennox Furnace Safety Control Applications

Always verify temperature ratings, orientation, wire connections, and overall length before ordering.

Specification

Refund policy

Our refund and returns policy lasts 30 days. If 30 days have passed since your purchase, we can’t offer you a full refund or exchange. Please note there will be a 20% Re-stocking fee of product price.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. Model and serial number must match what is on the invoice and correct box information.
Exclusions:
•    Part with obvious signs of use of installation.
•    Original box was destroyed or could not be located by purchaser.
•    Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
•    Any item that is returned more than 30 days after delivery
Part installation
HVAC Parts and Equipment Depot recommend this parts will be installed by a licensed professional contractor. HVAC Parts and Equipment Depot assumes no liability for any injuries or damages arising from the user information or products. 
Sale items
Only regular priced items may be refunded. Sale items cannot be refunded. Special Order items cannot be refunded. 
Exchanges
We only replace items if they are defective or damaged from Manufactory. If you need to exchange it for the same item, send us an email at hvacpartsstore@gmail.com and send your item to: HVAC Parts & Equipment Depot 1135 E Plano Parkway Suite 8 Plano Tx 75189.
Refunds
To complete your return, we require a receipt or proof of purchase within 30 days or less.
Once your return is received and inspected by management team, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 7-14 Business days. HVAC Parts and Equipment Depot or its employees are not responsible for damaged items from manufactory.
Shipping returns
To return your product, you should mail your product to:
HVAC Parts & Equipment Depot
1135 E Plano Parkway Suite 8 Plano Tx 75074.
Customer will be responsible for paying for shipping. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
Depending on where you live, the time it may take for your exchanged product to reach you may vary.
If you are returning more expensive items, you may consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item without a valid tracking number provided by your choice of delivery method.
Late or missing refunds
If you haven’t received a refund yet, first check your bank account again. This process takes approximately 7-14 business days depending on your Bank.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at hvacpartsstore@gmail.com
Special Orders
Special orders should be picked up within 30 Days of purchase day. Your items will be considered abandoned and will be returned to manufacturer. There will be a 100% Re-stocking fee for abandoned items. 

Need help?
Contact us via email hvacpartsstore@gmail.com or Phone 214-734-5222 for questions related to refunds and returns.
Thank you for choosing HVAC Parts & Equipment Depot.

Michel & Siso are very knowledgeable and explain everything to where I could understand! Amazing experience! Thank you will always come here for any AC needs. Trustworthy and excellent customer service.

Celest G.
Verified Customer
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