-16-
7
Press torch switch, wire
feeding is normal but no gas
flow.
1. Control motherboard of the
welder is broken
2. Electromagnetic valve is
broken
1. Change the control
motherboard.
2
）
Change the
electromagnetic valve.
8
Press the torch switch, wire-
feeder does not work, and no
open-circuit voltage.
1. Torch switch is broken.
2. Control cable of the wire-
feeder is broken.
1. Change torch.
2. Fix the control cable of
wire-feeder.
7.3 Solutions after diagnose
7.3.1 Broken fuse
After diagnosing the causes (e.g. overloading, short circuit and etc.), change the fuse. If the fuse is
broken again after closing the circuit, please shut off the power and contact us.
7.3.2 Problems with the PCB.
Please contact us.
7.3.3 Other faults
Please check corresponding parts and change them.
7.3.4 Others
Please check if there is any wrong or loose connection
7.4 After-sale service
a. Please refer to this manual for any common faults.
b. Please contact the seller or manufacturer for repair.
c. Please provide the following information when requesting a repair:
Your name, address and contact number.
Model number and machine type.
Details of any problems or faults.
