Thermostat for Refrigeration Systems Product overview A replacement thermostat designed for household refrigeration and freezer systems. Controls compressor cycling to maintain desired temperatures and restore proper cooling when the thermostat is the source of the fault. Key benefits Restores reliable compressor control when the thermostat is the cause of malfunction. Simple replacement can resolve uneven cooling or temperature control problems without unnecessary compressor repairs. Standard form factor fits many common refrigeration models that use capillary sensor thermostats. Supplied with randomly varied batch labels; label appearance may differ between deliveries. Main functions Senses evaporator or cabinet temperature and opens or closes the compressor circuit accordingly. Prevents excessive running when working properly, and enables normal compressor operation when required. Compatible with systems that use simple on off thermostat control and capillary sensing elements. Compatibility and fit Intended for use in household refrigerators and freezers that use a capillary tube thermostat. Suitable as a direct replacement when the original thermostat has the same terminal layout and sensor type. If unsure about fit, compare the physical mounting, terminal arrangement, and sensor probe or capillary length to the original part before . Typical construction and materials Housing: durable plastic for mounting and electrical terminal protection. Sensor: metal sensing bulb or capillary tube and internal sensing element for temperature detection. Electrical terminals: standard compressor control terminals for direct wiring into the refrigeration circuit. Performance and reliability Designed to provide consistent on off control within typical refrigerator operating temperatures. Effectiveness depends on correct matching to the appliance and proper installation. Not a solution for refrigerant shortage, compressor motor failure, or wiring and starter faults. Troubleshooting and when to the thermostat Uneven cooling with frost only on one side of the evaporator or poor freezer performance: usually not a thermostat issue. Check for refrigerant shortage or compressor aging. Even frost across the evaporator and the refrigerator freezes normally but temperature control is poor: likely a thermostat problem and replacement is recommended. Compressor runs continuously after compressor replacement or system : usually not a thermostat issue. Consider a refrigerator timer or evaluate system charge and compressor compatibility. Compressor will not start: test by temporarily shorting thermostat terminals. If the compressor starts and cools normally, the thermostat. If shorting does not start the compressor, investigate wiring, starter, or compressor faults, or a refrigerant shortage. In very low ambient temperatures, also check temperature compensation heater and thermostat. Installation notes Power must be switched off before attempting replacement. Verify terminal layout and sensor position match the original part. If unsure about installation, consult a qualified refrigeration technician. Practical use scenarios 1. Replacing a failed thermostat in a household refrigerator where cooling is uneven but the evaporator shows even frost and temperatures are not maintained. 2. Restoring normal cycling after intermittent temperature control failure where compressor runs too often and air temperature fluctuates. 3. Diagnostic step during service to confirm whether control issues originate from the thermostat or from compressor, refrigerant, or electrical faults. Additional information Appearance of batch labels may vary; products are with random label versions. Buyers who require uniform labeling should not . This product addresses thermostat related faults only. Do not assume thermostat replacement will fix compressor mechanical failures or refrigerant related problems. Package contents One thermostat unit ready for installation. This thermostat is intended as a replacement control for refrigeration systems using capillary sensing thermostats. Confirm compatibility with your appliance before .