Could a failing Universal Linear Compressor Kit cause the LG LMXS28626 to have symptom: Freezing Up Not Cooling?

The proprietary linear compressor in this model utilizes a single reciprocating piston that frequently suffers from mechanical fatigue of the internal valve plate or discharge spring. When this occurs, the compressor continues to vibrate (sounding 'on'), but it cannot generate the compression ratio necessary to circulate refrigerant through the expansion valve, leading to a complete loss of heat exchange. This specific kit is the manufacturer's required replacement to address the design flaw.

Could a failing Evaporator Fan Motor cause the LG LMXS28626 to have symptom: Freezing Up Not Cooling?

The fan motor facilitates forced-air convection across the evaporator coils; if the motor bearings seize or the electrical windings fail, cold air remains trapped in the evaporator housing. This causes the coils to 'freeze up' into a solid block of ice while the main refrigerator compartment fails to cool due to the lack of air movement. In LG units, this often occurs as a secondary failure when moisture from the defrost cycle enters the motor housing.

Could a failing Defrost Thermistor (Sensor) cause the LG LMXS28626 to have symptom: Freezing Up Not Cooling?

This sensor provides thermal feedback to the control board to initiate the defrost heater; if it fails or drifts out of calibration, the unit will not recognize that the evaporator is clogged with frost. The resulting ice buildup acts as an insulator, preventing the refrigerant from absorbing heat from the cabinet and eventually blocking the air passages entirely.

What is the most likely root cause for a LG LMXS28626 with symptom: Freezing Up Not Cooling?

The proprietary linear compressor in this model utilizes a single reciprocating piston that frequently suffers from mechanical fatigue of the internal valve plate or discharge spring. When this occurs, the compressor continues to vibrate (sounding 'on'), but it cannot generate the compression ratio necessary to circulate refrigerant through the expansion valve, leading to a complete loss of heat exchange. This specific kit is the manufacturer's required replacement to address the design flaw.

LG LMXS28626 Freezing Up Not Cooling

CONF	DIAGNOSIS	ACTION
93% CONF	Universal Linear Compressor Kit The proprietary linear compressor in this model utilizes a single reciprocating piston that frequently suffers from mechanical fatigue of the internal valve plate or discharge spring. When this occurs, the compressor continues to vibrate (sounding 'on'), but it cannot generate the compression ratio necessary to circulate refrigerant through the expansion valve, leading to a complete loss of heat exchange. This specific kit is the manufacturer's required replacement to address the design flaw.	VIEW ON AMAZON #CommissionsEarned
4% CONF	Evaporator Fan Motor The fan motor facilitates forced-air convection across the evaporator coils; if the motor bearings seize or the electrical windings fail, cold air remains trapped in the evaporator housing. This causes the coils to 'freeze up' into a solid block of ice while the main refrigerator compartment fails to cool due to the lack of air movement. In LG units, this often occurs as a secondary failure when moisture from the defrost cycle enters the motor housing. SKU: EAU64824401	VIEW ON AMAZON #CommissionsEarned
3% CONF	Defrost Thermistor (Sensor) This sensor provides thermal feedback to the control board to initiate the defrost heater; if it fails or drifts out of calibration, the unit will not recognize that the evaporator is clogged with frost. The resulting ice buildup acts as an insulator, preventing the refrigerant from absorbing heat from the cabinet and eventually blocking the air passages entirely.	VIEW ON AMAZON #CommissionsEarned

DIY Repair Guide

Watch exactly how to replace the Universal Linear Compressor 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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LG LMXS28626 Freezing Up Not Cooling

DIY Repair Guide