Such a problem is the purification of the power supply did not work, the manufacturer used an electronic high-voltage power supply, such a power supply due to the complexity of the circuit components in the high-temperature and high humidity environment is very easy to damage, so that will often not work, it is best to manufacturers to replace the power supply, the use of inductive high-voltage power supply with short-circuit protection. This power supply will not fail due to short-circuit, the picture is as follows