Help & Support

Confirm the socket, power cord, plug, and power-on status. Do not use the cabinet if the cord or plug is damaged or loose.

Stop troubleshooting and contact technical support. Protective-device or fuse work must be handled by qualified service personnel.

Confirm the room is within the installation range, the door is fully closed, openings are not frequent, and the selected parameters are reasonable.

Allow the cabinet to stabilize. If the temperature still does not approach the setpoint, record the room and cabinet readings and contact support.

Reduce frequent door opening, confirm airflow space is clear, and check that the cabinet is not overloaded or tightly packed.

Automatic cycling can occur while the cabinet maintains the selected environment. Contact support if operation becomes abnormal or settings cannot be maintained.

Confirm the cabinet has power and the Light control is switched on.

Do not open or repair the lamp assembly. Contact qualified technical support.

Confirm the cabinet is level and stable, and clear dust or debris around the ventilation openings.

A short compressor start or stop sound can be normal. Record a video and contact support if a new, persistent, or unusually loud sound remains.

Re-level the cabinet, clean the door seal, confirm shelves are seated correctly, and check that nothing blocks the door.

Do not force the door. Photograph the seal and alignment, then contact support.

Refill the clean-water tank and reinstall it completely. If a level mark is present, follow that mark.

A tank seating or sensor issue may remain. Contact support; do not disassemble the cabinet.

Empty the dirty-water tank and reinstall it completely.

Stop customer troubleshooting and contact support with a clear photo of the installed tank and the active alert.

During the first 48 hours after fresh material is loaded, the system is typically operating under its highest moisture-removal load. Fresh material contains a significant amount of water, so the cabinet must continuously manage cooling, dehumidification, and moisture removal. Temporary increases and decreases in cabinet RH can be a normal part of this process and do not necessarily indicate a malfunction.

At the beginning of the process, high material moisture leads to high moisture release and a heavier dehumidification load. This creates a greater potential for evaporator frost and more noticeable RH movement. As the material gradually loses moisture, moisture release and system load decrease, and the cabinet environment should generally become more stable.

If RH rises from 60% to 65%, 68%, or even temporarily approaches 70%, do not immediately open the cabinet. Keep the door closed and give the system enough time to complete its current automatic defrost and dehumidification cycle. Monitor and record temperature and RH, note when the increase occurs, and observe whether RH gradually recovers during the following cycles.

Do not repeatedly open the door, unnecessarily power off or restart the unit, frequently remove material for inspection, or interrupt automatic defrost. Opening the door introduces warm and humid outside air. The system must then cool the cabinet and restore the selected environment again, which can increase compressor workload, promote another frost-and-defrost cycle, increase operating time and energy use, and make the processing environment less stable.

After the first 48 hours, RH remains abnormally high for an extended period or consistently fails to recover; the system cannot maintain the target environment; temperature also behaves abnormally; an alarm or unusual noise appears; significant water leakage or abnormal frost accumulation is observed; or abnormal operation continues while the cabinet remains closed without repeated manual intervention.

When only 1–2 lbs of fresh material is loaded, less moisture is released into the cabinet, so RH may appear steadier. A full load releases much more moisture and creates a heavier moisture-removal load. More visible RH movement is therefore expected with more material and does not by itself mean the cabinet is malfunctioning.

As the moisture-removal load increases, the compressor and dehumidification system work harder. Frost is more likely to form on the evaporator, so the cabinet may start an automatic defrost cycle more often. During defrost, dehumidification pauses briefly while the frost melts, and RH may temporarily rise or fluctuate before moving back toward the selected setpoint.

Keep the door closed and leave the cabinet powered on. Do not switch it off, restart it, or unplug it in response to a temporary RH rise. Allow approximately 15 minutes for the active control cycle to move RH back toward the target. The system continues regulating RH around the selected setpoint, and brief movement above or below that target is normal during high-load operation.

RH remains far outside the selected range, does not recover after repeated operating cycles, or the change is accompanied by abnormal temperature, an alarm, unusual noise, water leakage, or heavy frost accumulation.

During high-load dehumidification, frost may gradually accumulate on the evaporator. When required, the system automatically enters a defrost cycle: continuous dehumidification leads to frost accumulation, automatic defrost begins, and dehumidification resumes after defrost is complete. During defrost, the compressor temporarily stops, dehumidification pauses, and frost on the evaporator melts. Some moisture may be released back into the cabinet air while fresh material continues releasing moisture. Cabinet RH can therefore rise during or shortly after defrost. This temporary increase is part of the normal operating process. Once defrost is complete, the system automatically resumes cooling and dehumidification, and RH should gradually decrease again.

The system also performs periodic automatic air exchange as part of its control logic—approximately once every 12 hours, lasting around 15 minutes. If the surrounding air is more humid than the air inside the cabinet, incoming air can introduce additional moisture and temporarily increase cabinet RH. The effect may be more noticeable in warm or humid environments.

The operating sequence may appear as dehumidification, defrost, resumed dehumidification, automatic air exchange, and continued dehumidification. A temporary RH rise around defrost or shortly after air exchange does not by itself mean the system has malfunctioned.

Observe first rather than immediately intervening. Keep the cabinet closed and leave the cabinet powered on; do not restart or unplug it during a temporary RH rise. Allow approximately 15 minutes for the active control cycle to move RH back toward the selected setpoint. This temporary movement is part of normal defrost and air-exchange operation.

When compressor-driven cooling starts, a large difference between set temperature and actual cabinet temperature triggers high-load compressor operation. Apart from rapid cabinet cooling, strong dehumidification takes place during this period. Humidity will fluctuate substantially and may drop far below the target while the compressor runs hard. Once temperature reaches the setpoint, the compressor exits high-speed operation, and humidity will gradually return to the preset target.

Run the unit empty for 1–2 hours before loading crops for drying, to establish stable temperature and humidity conditions inside the cabinet first.

High-load compressor operation achieves fast cooling with a side-effect of dehumidification. During frequent high-speed compressor cycles, humidity fluctuates and may read slightly below the setpoint. This is normal operating behavior and nothing to worry about.

Stable temperature-humidity regulation requires a sealed controlled enclosure. Opening the cabinet door breaks the internal climate balance. When there is a notable temperature gap between inside and outside, the mixing of cold and warm air instantly generates moisture and mist, triggering an abrupt humidity surge and large-scale swings in both temperature and humidity.