A Daikin 112056401 Crankcase Heater warms compressor oil to discourage refrigerant migration and maintain smoother starts in the climate-control system.
The crankcase heater keeps refrigerant from migrating into the compressor oil during off cycles, which supports reliable startup and smoother operation in a HVAC system. Its 120V, 90W design provides the consistent heat needed to protect oil quality and reduce internal wear in the HVAC system.
The crankcase heater might be wearing out if the heating and cooling equipment shows hard starts, reduced compressor reliability or performance issues after long shutdown periods. Physical signs can include visible damage or loose connections and you might notice environmental indicators such as frost, excess moisture or refrigerant migration around the compressor area.
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