1Laboratory refrigeration refrigeratorPoor cooling effect

Check if the power is connected and if the socket is functioning properly, and confirm that the refrigerator is in a powered on state.

Check if the sealing strip of the box door is aged or damaged. If the seal is not tight, it should be replaced in a timely manner to avoid air conditioning leakage.

Clean the dust and debris on the surface of the condenser to ensure smooth heat dissipation, while avoiding obstacles around the refrigerator.

Confirm whether the temperature setting of the thermostat is reasonable, and adjust it by 1-2 ℃ to observe the effect and eliminate the problem of setting deviation.

2、 The compressor does not start

Check if the power cord is damaged, if the plug is in good contact, and replace the socket to test if the power supply is normal.

Observe whether the temperature controller is in the "0" gear (shutdown gear), adjust to the appropriate gear, and restart.

If the compressor makes abnormal noise but does not start, it may be a starter failure, and professional personnel should be contacted for maintenance and replacement.

Eliminate voltage instability factors and use a voltage regulator if necessary to ensure stable power supply.

3、 Severe frosting inside the box

Frequent opening and closing of the box door or failure to close it tightly can cause moisture to enter and frost to form. It is necessary to develop the habit of closing the box door tightly in a timely manner.

Check if the defrosting function is normal. If the defrosting heater or defrosting timer malfunctions, professional repair is required.

Regular manual defrosting (models without automatic defrosting function) to avoid excessive frost layer affecting cooling efficiency.

4Laboratory refrigeration refrigeratorExcessive noise during operation

Is the refrigerator placed horizontally? Adjust the bottom legs to ensure a stable body and avoid vibration and noise.

The back heat dissipation pipe collides with the wall and cabinet, and the position of the refrigerator can be adjusted to leave enough heat dissipation space.

The compressor foot pad is aging or loose, and it is necessary to tighten the foot pad or contact maintenance personnel for replacement to reduce vibration and noise.