Argon arc welding fan cooling fan does not turnBut to get the AC220V power test, the fan is good.
First to see if there is no insurance, no power line to fan the fan from the end of May to back down or switch control transformer, intermediate without breaking, look at the lower end of the switch output end of the transformer or control there is no voltage, if not there may be a switch or a transformer is broken, the premise is the switch above or the input end of the transformer voltage,
The ship type switch is connected directly to a fan to supply power to the fan.
It is possible that the welder is out of order and that the following work can be done before repairs or repairs;1. Check whether the power supply for welding machine is power or not, and make sure the leakage protection switch is not tripping. It's all right with the multimeter;2. Check whether the power input cable of the welder is in good condition and make sure there is no disconnection;3. Ask professional maintenance personnel to disassemble the chassis and measure whether the input of the welder has electricity, and pay attention to safety!4. Make sure the power switch of the welder is good.