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Lennox 619559-01 Defrost Control Board Kit – Genuine OEM Heat Pump Defrost Control Board

Lennox 619559-01 Defrost Control Board Kit – Genuine OEM Heat Pump Defrost Control Board

Low stock: 1 left

Regular price $212.00 USD
Regular price Sale price $212.00 USD
Sale Sold out
Shipping calculated at checkout.

Key Features & Specifications

  • Genuine OEM Lennox heat pump defrost control board kit

  • Controls automatic outdoor coil defrost operation

  • Supports reliable heat pump heating performance

  • Factory-compatible design for Lennox HVAC systems

  • Direct-fit replacement for residential heat pump systems

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Specifications

Product Details and Key Specifications:

Part Number: 619559-01
Catalog Number: 16V37
Manufacturer: Lennox (Genuine OEM)
Part Type: Defrost Control Board Kit
Application: Residential Heat Pump Systems
Function: Controls Heat Pump Defrost Operation & Outdoor System Timing
Control Type: Electronic Defrost Control Board
Installation Type: Direct OEM Replacement
Compatible Brands: Lennox
Electrical Compatibility: OEM Factory Matched
Shipping Weight: Approx. 1-3 lbs

description

Lennox 619559-01 Defrost Control Board Kit – Genuine OEM Heat Pump Defrost Control Board

The Lennox 619559-01 Defrost Control Board Kit is a genuine OEM heat pump defrost control board engineered to manage outdoor coil defrost cycles and system operation in residential HVAC heat pump systems. Designed to monitor outdoor operating conditions and control automatic defrost sequencing, this control board helps maintain efficient heating performance during cold weather operation.

Built to OEM specifications for exact compatibility and dependable long-term operation, the 619559-01 defrost control board provides reliable communication between outdoor components while protecting the heat pump system from excessive frost accumulation. Its factory-programmed design ensures proper defrost timing, compressor operation, and system efficiency in compatible Lennox heat pump systems.


Key Features and Function:

Automatic Defrost Cycle Control – Regulates outdoor coil defrost operation for heat pump efficiency
Genuine OEM Compatibility – Designed specifically for Lennox HVAC heat pump systems
Integrated System Protection – Helps prevent frost buildup and airflow restriction
Direct-Fit OEM Design – Factory-compatible wiring and mounting simplify installation


Product Details and Key Specifications:

Part Number: 619559-01
Catalog Number: 16V37
Manufacturer: Lennox (Genuine OEM)
Part Type: Defrost Control Board Kit
Application: Residential Heat Pump Systems
Function: Controls Heat Pump Defrost Operation & Outdoor System Timing
Control Type: Electronic Defrost Control Board
Installation Type: Direct OEM Replacement
Compatible Brands: Lennox
Electrical Compatibility: OEM Factory Matched
Shipping Weight: Approx. 1-3 lbs


🛠️ HVAC Depot Pro Tip: Inspect the Defrost Sensor Before Replacing the Board

A failed defrost cycle is not always caused by the control board itself. Before replacing the board, inspect the defrost sensor, outdoor coil thermistor, reversing valve operation, and low-voltage wiring for damage or corrosion. Frost buildup caused by airflow restrictions or refrigerant issues can also mimic board failure symptoms.


Cross-Reference & Compatibility:

The Lennox 619559-01 is a direct OEM replacement for the following applications:

OEM Numbers: 619559-01
Catalog Number: 16V37
Compatible Brands: Lennox
Application Type: Heat Pump Defrost Control Boards
Board Style: Electronic Defrost Control Board Kit


Extensive Model Compatibility List:

Compatible Lennox Heat Pump Series:

• XP Series Heat Pumps
• Elite Series Heat Pumps
• Merit Series Heat Pumps
• Residential Split-System Heat Pumps
• High-Efficiency Heat Pump Systems
• Outdoor Condensing Units
• Select Lennox Residential HVAC Systems
• Select Lennox Heat Pump Applications

Always verify part number, wiring configuration, sensor compatibility, and control board layout 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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