Freezers that won’t cool or hold 0°F often point to dirty condenser coils, a failed evaporator fan motor, a defective thermistor or thermostat, a worn start relay, control board faults, or a weak compressor. We verify with electrical tests, pressure readings, and temperature mapping to restore consistent cooling.
Heavy frost or sheet ice typically indicates defrost failures such as a bad heater, defrost thermostat, or control logic, or a clogged drain causing ice under the evaporator. We steam‑defrost safely, clear and insulate drains, replace gaskets, align doors, and fix the underlying cause to prevent recurrence.
Loud buzzing, rattling, or grinding can stem from worn fan bearings, vibration against panels, or start device issues, while water beneath the unit may be a cracked drain pan or an obstructed defrost tube. We correct mechanical noise, replace failed components, and ensure the cabinet is dry and odor‑free.