Haswill Electronics is a manufacturer of digital temperature devices, electronic temperature controllers, data loggers, and thermostats.
Haswill Electronics specializes in the manufacturing of digital temperature devices, including electronic temperature controllers, data loggers, and digital thermometers.
Operating out of China, they focus on providing reliable and affordable solutions for temperature and humidity measurement, recording, and control. Haswill offers customized products and standard thermostats (such as the popular STC and RC series) suitable for refrigeration, heating, defrosting, and various industrial applications like incubators and oversized freezer rooms.
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Press the 'Set' key to display the existing SP (Set Point) value. Use the UP or DOWN keys to change the SP value to your desired target. Leave the thermostat alone for 30 seconds; it will automatically save your setting and return to the normal monitoring status.
The E2 error indicates a sensor error. Ensure the sensor is installed firmly or replace it with a new one. The alarm will disappear 15 seconds after the problem is fixed.
Under normal refrigerating status, hold the arrow down (or designated defrost) key for 3 seconds to start the forced-defrosting mode immediately. Repeating this operation will stop the defrosting.
The error code HH means the instant temperature is higher than the maximum displayable measure (typically > 99°C). Check the room temperature, then change the compressor or defrosting device's working status manually if necessary to prevent damage.