Does frequency converter maintenance make money?

If it is easy to repair, the profit will be ok, but if it is not easy to repair, it will be a headache. Especially those soft faults.

The old ones were returned by those customers. If there is no maintenance value, there is depreciation left.

Great prospects, because China's industry is relatively developed, and now frequency converters are cheaper and more popular.

However, there are many kinds of inverters, and maintenance needs to be studied in professional institutions.

If something goes wrong, the maintenance cost is still low, and if it is replaced, the cost will be high.

Not only to repair, but also to sell the whole machine.