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Turn on the machine, the fan works, but the
output current is unstable and can't be
controlled by potentiometer when welding.
(1) The current potentiometer fails. Replace it.
(2) Check if any loose contact exists inside the machine. If any,
reconnect.
Turn on the machine, the power LED is on, the
fan works, but no welding output.
(1) Check if any loose contact exists inside the machine.
(2) Open circuit or loose contact occurs at the joint of output terminal.
(3) The Abnormity indicator LED is on.
a) The machine is under over-heatin
g protection status. It can
recover automatically after the welding machine is cooled.
b) Check if the thermal switch is ok. Replace it if damaged.
c) Check if the thermal switch is loosely connected, and
reconnect it if necessary.
The electrode holder becomes very hot.
The rated current of the electrode holder is smaller than its actual
working current. Replace it with a bigger rated current.
Excessive spatter in MMA welding. The output polarity connection is incorrect. Exchange the polarity.
Breaker trips when turn on t
he machine Check primary rectifier bridge and IGBT
This product is being improved unceasingly, so differences may appear in parts except for
functions and operation. Thanks for understanding.
APPENDIX A: PACKING, TRANSPORTATION AND STORAGE
A1. Packing
No. Name Unit Quantity
1
User’s manual for ARC series (English)
Volume 1
2
Quick plug fittings
Pack 2
3
4
5
“*”- Not all products have this part.
A2. Transportation
Equipment should be handled with care in transportation to avoid severe impact. Equipment should be
prevented from being affected with damp and caught in the rain in transportation.
A3. Storage
Temperature for storage: -10℃~+40℃
Humidity for storage: relative humidity≤90%
Storage life: 12 months
Place for storage: ventilated indoor place without corrosive gas
APPENDIX B:REVISION HISTORY
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