York 031-01975-000 Defrost Control Board

Product Description

The YORK 031-01975-000 is a defrost control board designed for heat pump systems. It manages the defrost cycle, signaling the system to temporarily reverse operation and clear ice buildup from the outdoor coil. Without reliable defrost control, a heat pump loses efficiency and risks compressor damage in cold-weather operation. This board is a direct OEM-style replacement intended for installation by licensed HVAC technicians during routine service or system repair.

This defrost control board is suited for residential heat pump applications where outdoor coil icing is a recurring service issue in heating season. It fits into the control circuit of the outdoor unit and works with the system's existing defrost sensors and reversing valve. Technicians replacing a failed or suspect defrost board will find this a straightforward swap in compatible YORK outdoor units.

Key Features

• Controls defrost cycle timing and initiation for heat pump outdoor units
• OEM replacement board manufactured in the USA
• TAA/BAA compliant for applicable procurement requirements
• Sold individually as a single-unit package

Compatibility

Designed as an OEM-style replacement defrost control board for YORK heat pump outdoor units. Consult the unit service manual or YORK parts documentation to confirm fitment for a specific model before ordering.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect and lock out all power to the outdoor unit before removing the existing board or handling any wiring. Follow the unit wiring diagram when reconnecting control leads to the replacement board. Verify defrost cycle operation after reinstallation before returning the system to service.

Technical Specifications

• Package Quantity: 1
• Country of Origin: USA
• TAA/BAA Compliant: Yes
• UNSPSC: 39122337

Standard Information

• Brand: YORK
• Manufacturer Part Number: 031-01975-000