York 025-37853-000 Crankcase Heater

The York 025-37853-000 Crankcase Heater is a critical 120V, 150W auxiliary component designed to protect high-performance refrigeration and air conditioning compressors. This OEM York replacement part prevents refrigerant migration into the compressor oil during the off-cycle, maintained at 150 watts to ensure proper oil viscosity and prevent flooded starts in low-ambient conditions. Built with a rugged steel housing and a 4-inch by 6-inch heating element, this heater is engineered for industrial compressor maintenance and HVAC system reliability. It serves as a direct replacement for many York and Coleman units, typically interlocked with the compressor contactor to activate during idle periods. For veteran technicians, this 120 volt crankcase heater provides the necessary thermal energy to eliminate liquid slugging risks, ensuring the system remains ready for immediate operation even after extended shutdowns in cold environments.

• Optimized Compressor Protection: Actively prevents refrigerant from diluting compressor oil, maintaining critical lubrication properties.
• Durable Construction: Features a corrosion-resistant powder-coated steel housing designed for heavy-duty HVACR environments.
• Standardized Electrical Specs: Operates on a standard 120V circuit with a 150W output, delivering consistent radiant heat.
• Simplified Serviceability: Direct OEM fitment (SKU: 025-37853-000) reduces installation time during preventative maintenance or emergency repairs.
• Moisture Control: Eliminates internal condensation and freeze-ups within the crankcase to extend the operational life of the compressor.

How do I verify if the 025-37853-000 is the correct heater for my unit?
This specific heater is most commonly found on York YPAL design level rooftop units and various chiller models. Always cross-reference the part number and verify that your system is wired for a 120V auxiliary heater circuit before installation.

Should the crankcase heater run while the compressor is operating?
No. In a standard HVACR configuration, the heater should be interlocked with the compressor contactor so it is energized only when the compressor is off. Continuous operation during the run cycle can lead to unnecessary oil overheating and component wear.

Does this heater require a separate thermostat?
While many 025-37853-000 configurations utilize an integrated thermostat for autonomous control, it is often wired through the main control board or contactor auxiliary contacts to ensure proper off-cycle heating.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.