What is the Input Supply Voltage range used before the incident?
The problem from SMPS could be due to internal input fuse blown, i am not sure.
The input side is protected by an internal input fuse. The internal input fuse rating is "6.3 A slow-acting / 250 V AC"
The internal fuse is not user-replaceable. If the internal fuse blows, most probably the device is defective. In this case, an examination of the switch mode power supply by the manufacturer is necessary.