Got one of the above,but seems down on power.Can anyone tell me how to test the various components inside,as i would really like to get it sorted,and where to get the spares in the sandwell area(west mids).
first thing would be to test from the tip of the torch and the earth clamp with a multimeter to check the voltages on different power settings then check all connections just because they look and feel strong doesn't mean there is a good electrical connection
it would also be an idea to check the welding rectifier which are a series of diodes they should only pass current one way and are mounted on a large aluminium heat sink you will have to disconnect them to do a successful test