Industry experts analyze the detection and treatment methods of common inverter problems

Interference from outside

The inverter will be disturbed by some strong electromagnetic waves in the use environment, such as nearby motors, power converters, strong magnetic fields, etc. So try to stay away from similar equipment.

The inverter is not responding

1. The battery and inverter are not connected properly. Reconnect them.

2. The battery poles are connected in reverse and the fuse is blown. Replace the fuse.

Output voltage low

1. Overload, the load current exceeds the nominal current, turn off part of the load and restart.

2. The input voltage is too low. Make sure the input voltage is within the nominal voltage range.

Low voltage alarm

1. The battery is dead and needs to be charged.

2. The battery voltage is too low or the contact is poor. Recharge the battery and check the battery terminals or clean the terminals with a dry cloth.

Inverter has no output

1. The battery voltage is too low. Recharge or replace the battery.

2. The load current is too high. Turn off part of the load and restart the inverter.

3. Inverter over-temperature protection. Allow the inverter to cool down for a while and place it in a well-ventilated place.

4. The inverter fails to start and restarts.

5. The terminals are connected in reverse and the fuse is blown. Replace the fuse.

The inverter is not working

Check the power switch, fuse and battery cables or smoke detector.

Inverter has no DC input

The common reason for this type of fault is that the battery is not connected correctly. The positive and negative poles of the inverter must be correctly connected to the positive and negative poles of the battery, with the positive pole connected to the positive pole and the negative pole connected to the negative pole. After the connection is correct and the switch is closed, this type of fault can basically be solved.

The inverter input and output fuses are blown

This type of fault is usually obvious and can be solved by simply replacing the fuse.

The battery voltage is 20% higher than the rated DC input voltage

The inverter has an operating voltage range, which is generally between +-10% of the rated DC voltage. If it is higher than this voltage, you need to replace the battery pack or the inverter to prevent damage to the machine.

The battery voltage is 15% lower than the rated DC input voltage

This type of problem is mainly caused by low battery power and only requires the battery pack to be charged.

Load power is too large

This type of problem is mainly caused by insufficient calculation of load power in the early stage. You only need to increase the power of the inverter or reduce the load power.