Troubleshooting Guide - ESAB powercut 700 PT-39 Instruction Manual

US
8.1

Troubleshooting guide

Problem
The ON/OFF switch is in
position 1, but the green led
(power) does not light up.
The power source is on, but the
green GAS PRESSURE led
does not light up.
The power source is on, but the
yellow EXCESS TEMPERAT­
URE led remains lit.
The power source is on, the red
led remains lit.
The thermal switch trips during
cutting.
The arc does not strike or the
arc disappears during cutting.
bp23aa
Cause
S There is no power present.
S Tripped circuit breaker
S The air pressure is low.
S No air is present
S The power source is still
overheated. It will cool
down sooner with the fan
on.
S The temperature sensor is
faulty.
S The power source is not
enabled. A safety device
has been activated.
S The power required by the
power source has
exceeded the power
available from the incoming
line voltage.
S Another appplicance is
working on the same line.
S The wear parts of the torch
are worn.
S The generator is
overheated.
S There is not sufficient air
pressure.
S There is low voltage on the
incoming line.
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Solution
S Check the power supply.
S Check the breaker.
S Check that the air filter is
not blocked.
S Increase the air pressure.
S Check if air is supplied.
S Switch on the power
source and wait a few
minutes before working
again.
S Call authorized service
technicians.
S Check the air pressure.
S Check if the consumables
are in place and properly
tightened.
S Check that the side panel
has been correctly closed
(torch connector inspection
side).
S Reduce the cutting current
with the command on the
front panel or reduce the
cutting time.
S Reduce the length of the
connecting cable or
increase the cable section.
S Do not connect other
appliances to the same
line.
S Check the torch and fit
spare parts if necessary.
S See if the yellow SAFETY
led on the front panel is lit.
Wait until the power source
cools down.
S See if the green GAS led
on the front panel is off.
Increase the air pressure.
S Check whether the air filter
is blocked and replace it if
necessary.
S Check the incoming line. If
an extension is being used,
ensure that the cable
section is adequate.
© ESAB AB 2012