We know that the refrigeration unit is the "heart" of a constant temperature and humidity test chamber—its most critical component. Only by ensuring the proper operation of the refrigeration unit can the chamber successfully achieve cooling and reach the preset low temperatures. The quality of the equipment depends heavily on a high-performance refrigeration system. So, what causes the refrigeration unit of a constant temperature and humidity test chamber to fail?

Based on years of production experience, Yashilin provides a step-by-step troubleshooting guide:

1. Check for poor contact between the plug and socket—if found, reconnect securely.
2. Inspect the socket fuse to see if it has blown.
3. Use a voltmeter to measure the voltage—low voltage may cause insufficient power supply.
4. Verify if the temperature controller's adjustment knob is functioning.
5. Check whether the overload relay is burnt out.
6. Examine if the motor is damaged.

Once again, we remind users: When purchasing a vertical constant temperature and humidity test chamber, do not focus solely on price comparisons. Instead, carefully evaluate the manufacturer’s technical expertise, production capabilities, material quality, and overall reliability to ensure long-term performance and durability.