USER MANUAL
JEFARC140M-230
140A
DC INVERTER ARC WELDER • 230V
~
50Hz • 13A
www.jeffersontools.com
12
POWER TROUBLESHOOTING
Welding quality is dependant on the selection of the of the correct consumables for the job at hand and the maintenance of the and the proper
preparation and welding techniques. The following troubleshooting guide will help you to identify some of the most common problems that you
might encounter and the best steps to prevent or overcome them.
PROBLEM
CAUSE
SOLUTION
Unable to establish a welding arc
1. The primary supply voltage has not
been switched on
2. The welding power source has been
disconnected
3. Loose internal electrical
connections
1. Switch on the primary supply voltage
2. Switch on the welding power source
3. Have the equipment and circuitry
checked and repaired by a qualified
engineer
Maximum output welding current cannot be achieved
with nominal mains supply voltage
Defective control circuit
Have a qualified service engineer inspect
and repair the equipment
Welding current is reduced during the welding process
Poor work lead connection to the work
piece
Ensure that the work lead has a positive
electrical connection to the work piece
Power outage / pilot light off / Fan is not operating
1. Input voltage failure
2. Over voltage
3. Internal electrical fault
1. Re-establish mains supply
2. Check required voltage for the equip-
ment, if necessary move the equipment
to a suitable supply source
3. Have machine tested and
repaired by a qualified technician
The fault indicator light is
displayed and no power is being supplied
1. The equipment has over-heated
2. The equipment is in an over current
cut-off state
3. Internal electrical fault
1. Allow the equipment to cool with the
fan-running
2. Switch off the mains supply to the
equipment and re-start
3. 3. Have machine tested and repaired
by a qualified technician
Summary of Contents for JEFARC140M-230
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