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York / Johnson Controls S1-33101975102 Defrost Control Board – Genuine OEM Heat Pump Defrost Control Board

York / Johnson Controls S1-33101975102 Defrost Control Board – Genuine OEM Heat Pump Defrost Control Board

Low stock: 1 left

Regular price $312.79 USD
Regular price Sale price $312.79 USD
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Shipping calculated at checkout.

Key Features & Specifications

  • Genuine OEM York heat pump defrost control board

  • Controls automatic defrost operation and system timing

  • Helps prevent outdoor coil frost accumulation

  • Supports efficient heat pump heating performance

  • Direct-fit replacement for York and Johnson Controls systems

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Specifications

Product Details and Key Specifications:

Part Number: S1-33101975102

Alternate Part Number: 286DB9752

Manufacturer: Johnson Controls / York (Genuine OEM)

Part Type: Defrost Control Board

Application: Residential & Light Commercial Heat Pump Systems

Function: Controls Defrost Timing and Outdoor Unit Operation

Control Type: Electronic Defrost Control Board

Installation Type: Direct OEM Replacement

Compatible Brands: York, Coleman, Luxaire, Fraser-Johnston, Guardian

Electrical Compatibility: OEM Factory Matched

Shipping Weight: Approx. 1-2 lbs

description

York / Johnson Controls S1-33101975102 Defrost Control Board – Genuine OEM Heat Pump Defrost Control Board

The York S1-33101975102 Defrost Control Board is a genuine OEM electronic defrost control board engineered to manage defrost operations in residential and light commercial heat pump systems. Designed to monitor outdoor coil conditions and automatically initiate defrost cycles when necessary, this control board helps maintain efficient heating performance and protects outdoor coils from excessive frost accumulation.

Built to OEM specifications for precise compatibility and reliable operation, the S1-33101975102 control board coordinates compressor, outdoor fan, and reversing valve functions during defrost cycles. Its factory-programmed logic ensures proper heat pump operation, improved system efficiency, and dependable cold-weather performance.


Key Features and Function:

Automatic Defrost Cycle Management – Controls heat pump defrost operation for maximum efficiency

Genuine OEM Compatibility – Designed specifically for York, Coleman, Luxaire, and Johnson Controls systems

Outdoor Coil Frost Protection – Prevents excessive frost buildup that can reduce heating capacity

Integrated System Control – Coordinates key heat pump components during defrost operation


Product Details and Key Specifications:

Part Number: S1-33101975102

Alternate Part Number: 286DB9752

Manufacturer: Johnson Controls / York (Genuine OEM)

Part Type: Defrost Control Board

Application: Residential & Light Commercial Heat Pump Systems

Function: Controls Defrost Timing and Outdoor Unit Operation

Control Type: Electronic Defrost Control Board

Installation Type: Direct OEM Replacement

Compatible Brands: York, Coleman, Luxaire, Fraser-Johnston, Guardian

Electrical Compatibility: OEM Factory Matched

Shipping Weight: Approx. 1-2 lbs


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

Many defrost-related service calls are caused by failed coil sensors, damaged low-voltage wiring, or poor electrical connections rather than the control board itself. Before replacing the board, inspect all sensors and verify proper voltage to ensure accurate diagnosis.


Cross-Reference & Compatibility:

The S1-33101975102 is a direct OEM replacement for the following applications:

OEM Number: S1-33101975102

Alternate Number: 286DB9752

Application Type: Heat Pump Defrost Control Boards

Board Style: Electronic Defrost Control Board

Compatible Brands: York, Coleman, Luxaire, Fraser-Johnston, Guardian


Extensive Model Compatibility List:

Compatible Heat Pump Systems:

• York Heat Pump Systems

• Coleman Heat Pump Systems

• Luxaire Heat Pump Systems

• Fraser-Johnston Heat Pumps

• Guardian Heat Pump Units

• Residential Split-System Heat Pumps

• Light Commercial Heat Pump Equipment

• Select Johnson Controls HVAC Systems

Always verify part number, wiring configuration, and model compatibility before ordering.

 

Specification

Refund policy

Refund & Return Policy

Last Updated: June 2026

At HVAC Parts & Equipment Depot, customer satisfaction is important to us. This Refund & Return Policy explains how returns, exchanges, and refunds are handled for purchases made through TopHVACParts.com.

Return Eligibility

We accept returns within 30 days of delivery.

To qualify for a return:

  • The item must be unused, uninstalled, and in its original condition.
  • The item must be returned in its original packaging.
  • Model numbers and serial numbers must match the original purchase records.
  • Proof of purchase or order confirmation is required.

Non-Returnable Items

The following items are not eligible for return or refund:

  • Installed or used parts.
  • Products showing signs of installation, modification, or damage caused after delivery.
  • Items missing original packaging.
  • Sale or clearance items.
  • Special-order or custom-order products.
  • Returns requested more than 30 days after delivery.

Restocking Fee

Approved returns may be subject to a 20% restocking fee.

The restocking fee will be deducted from the refund amount after the returned item has been inspected and approved.

Damaged, Defective, or Incorrect Items

If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery.

Email: support@tophvacparts.com
Phone: (214) 734-5222

We may request photographs and additional information to help process your claim.

If the claim is approved, we will provide a replacement, exchange, or refund at no additional cost to you.

Exchanges

We replace items only if they are defective, damaged upon arrival, or incorrectly shipped.

To request an exchange, contact us at:

support@tophvacparts.com

Refund Process

Once your return is received and inspected, we will notify you by email regarding approval or rejection of your refund request.

If approved:

  • Refunds will be issued to the original payment method.
  • Processing typically takes 7–14 business days after approval.
  • Your financial institution may require additional time before the refund appears in your account.

Return Shipping

Customers are responsible for return shipping costs unless the return is the result of:

  • Our shipping error,
  • A defective product,
  • A damaged product received upon delivery.

Original shipping charges are non-refundable.

We recommend using a trackable shipping service and purchasing shipping insurance for higher-value items.

Return Address

HVAC Parts & Equipment Depot
1135 E Plano Parkway, Suite 8
Plano, TX 75074
United States

Professional Installation Notice

Many HVAC products require installation by a licensed HVAC professional.

HVAC Parts & Equipment Depot is not responsible for damages resulting from improper installation, misuse, unauthorized modifications, or failure to follow manufacturer instructions.

Special Orders

Special-order products must be picked up within 30 days of purchase unless other arrangements have been approved.

Unclaimed special-order products may be returned to the manufacturer and may be subject to applicable restocking fees.

Contact Us

If you have questions regarding returns, refunds, or exchanges, please contact us:

HVAC Parts & Equipment Depot

Phone: (214) 734-5222
Email: support@tophvacparts.com

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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