W1609-101 Refrigeration Thermostat Temperature Controller Features of Remote Bulb TH-1609: 1. Application range: Suitable for refrigerators, freezers, etc., to meet your different needs. 2. Specifications: Type: Mechanical knob thermostat (normally closed); Temperature control range: -35℃~+10℃; Voltage: AC220V 50/60Hz; Contact capacity: 15A/250V; Protection level: IP54 (moisture-proof and dust-proof); Contact: Thickened silver-plated contact (1.5mm); Material: Ceramic base + flame-retardant shell. 3. Fault detection: Symptom 1: Refrigerator does not stop: Thermostat contacts stick; Symptom 2: Ice in the refrigerator: Temperature sensing tube failure; Symptom 3: Compressor does not start: Contact oxidation circuit breakage. 4. Adjustment temperature range: Refrigeration temperature control adjustment range: -34C/+32C, -30F/+90℉, temperature difference adjustment: 2.8°F/8°F. 5. Replacement part number W1609-101 TH-1609. 6. Easy to install: equipped with 5 feet (1.5 meters) long capillary tube, bulb size: 3/8 x 5 3/4. 7. Installation steps: Power off: unplug the refrigerator power supply; dismantle the old: remove the refrigerator compartment lighting cover (most models); replace the new: plug the wires (red-live wire/blue-neutral wire); test: turn to "7th gear" to verify the compressor start and stop. 8. Instructions included