How to solve Error Code 16

How to solve Error Code 16

Fault code:

【16】Request shutdown from chip failed

Reason:

The fault of "request shutdown from chip failed" in inverters is usually related to internal circuit abnormalities or external input abnormalities, which may involve the following reasons.

1. Abnormal input voltage

Voltage too high/too low: The input voltage of photovoltaic modules exceeds the inverter's tolerance range due to shading, poor line contact, or damaged battery cells.

2. Abnormal output load

Sudden load changes or low power factor: The connected electrical appliances have excessive power fluctuations or high harmonic content, exceeding the inverter's regulation capacity.

3. Overheating protection

The protection mechanism is triggered by poor internal heat dissipation of the inverter or high ambient temperature.

4. Chip or circuit malfunction

Abnormal control circuit: Internal chips are damaged or circuit components are aging.

solution:

1. Clean the surface of the components, inspect the junction box and DC cable connections, and replace damaged parts if necessary.

2. Reasonably distribute loads, avoid simultaneous start-up of high-power equipment, and install reactive power compensation devices.

3. Clean the radiator, ensure good ventilation, and avoid humid environments.

4. Contact professionals to inspect and replace damaged components, and update firmware or adjust parameters if necessary.

Note: Please do not dismantle the machine without permission, otherwise it will be out of the warranty of Ktech.