Could a failing Compressor Start Relay and Capacitor Kit cause the KENMORE 25356519400 to have symptom: ?

The PTC (Positive Temperature Coefficient) relay is the primary mechanical failure point on the compressor circuit. Over time, the internal ceramic disk fractures or degrades, preventing the start winding from being energized, which results in a compressor that hums but fails to turn over. Replacing the relay and capacitor restores the necessary phase-shift current to initiate the refrigeration cycle.

Could a failing Defrost Timer Control cause the KENMORE 25356519400 to have symptom: ?

This model uses a mechanical defrost timer that utilizes a small motor and gear train to toggle between cooling and defrost modes. If the internal gears strip or the motor coil fails, the unit will remain stuck in the defrost cycle (heating) or the cooling cycle indefinitely, leading to a complete loss of temperature regulation or evaporator icing.

Could a failing Evaporator Fan Motor cause the KENMORE 25356519400 to have symptom: ?

The evaporator fan motor is responsible for convective heat transfer across the evaporator coils. Bearing failure or winding burnout in this motor prevents cold air from circulating from the freezer into the fresh food compartment, even if the compressor and sealed system are functioning perfectly. Replacing the motor restores the pressure differential needed for airflow.

What is the most likely root cause for a KENMORE 25356519400 with symptom: ?

The PTC (Positive Temperature Coefficient) relay is the primary mechanical failure point on the compressor circuit. Over time, the internal ceramic disk fractures or degrades, preventing the start winding from being energized, which results in a compressor that hums but fails to turn over. Replacing the relay and capacitor restores the necessary phase-shift current to initiate the refrigeration cycle.

KENMORE 25356519400

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CONF	DIAGNOSIS	ACTION
86% CONF	Compressor Start Relay and Capacitor Kit The PTC (Positive Temperature Coefficient) relay is the primary mechanical failure point on the compressor circuit. Over time, the internal ceramic disk fractures or degrades, preventing the start winding from being energized, which results in a compressor that hums but fails to turn over. Replacing the relay and capacitor restores the necessary phase-shift current to initiate the refrigeration cycle. SKU: 241707701	VIEW ON AMAZON #CommissionsEarned
7% CONF	Defrost Timer Control This model uses a mechanical defrost timer that utilizes a small motor and gear train to toggle between cooling and defrost modes. If the internal gears strip or the motor coil fails, the unit will remain stuck in the defrost cycle (heating) or the cooling cycle indefinitely, leading to a complete loss of temperature regulation or evaporator icing. SKU: 215846602	VIEW ON AMAZON #CommissionsEarned
7% CONF	Evaporator Fan Motor The evaporator fan motor is responsible for convective heat transfer across the evaporator coils. Bearing failure or winding burnout in this motor prevents cold air from circulating from the freezer into the fresh food compartment, even if the compressor and sealed system are functioning perfectly. Replacing the motor restores the pressure differential needed for airflow. SKU: 241854301	VIEW ON AMAZON #CommissionsEarned

DIY Repair Guide

Watch exactly how to replace the Compressor Start Relay and Capacitor Kit.

// NOTICE: This report is generated by an Agentic AI Engineer utilizing probabilistic modeling.

PartSniper is an automated parts recommender service. AI-generated results may not be correct. This data is not a substitute for professional engineering advice or manual inspection. Always verify part compatibility and disconnect power before any repair. PartSniper is not liable for inaccuracies, injury, or damage.

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KENMORE 25356519400

DIY Repair Guide