Description
The York 025-43401-000 is a genuine OEM crankcase heater designed to protect the compressor in York HVAC systems. Operating at 120 volts and 140 watts, this heater maintains the compressor oil at an elevated temperature during off-cycle periods, preventing refrigerant from migrating into and mixing with the compressor oil — a condition that can cause serious damage on startup.
Why Crankcase Heaters Matter
During extended off periods — especially in cold ambient conditions — refrigerant vapor can migrate to the compressor crankcase and dissolve into the oil. When the compressor restarts, this refrigerant-oil mixture can foam violently, stripping lubrication from critical bearing surfaces and leading to premature compressor failure. A properly functioning crankcase heater eliminates this risk by keeping the oil warm and refrigerant-free at all times.
Key Features
- Genuine York OEM replacement part — SKU 025-43401-000
- Operating voltage: 120V
- Wattage: 140W
- Prevents refrigerant migration into compressor oil during off cycles
- Helps extend compressor service life and reduce costly failures
- Direct OEM replacement for compatible York equipment
Application
This crankcase heater is engineered as a direct OEM replacement for compatible York residential and light commercial HVAC systems. Always verify your equipment model number against York’s parts documentation before ordering to ensure proper fitment.
Installation Notes
- Always de-energize the system before servicing
- Allow the crankcase heater to operate for a minimum of 24 hours before starting the compressor after extended shutdown periods
- Follow all applicable local codes and manufacturer guidelines during installation
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