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Maintenance
Troubleshoong
Exposure to extremely dusty, damp, or corrosive air is damaging to this welding & cung machine.
In order to prevent any possible failure or fault of this equipment, clean the dust out at regular intervals
with clean and dry compressed air of required pressure.
Please note: Lack of maintenance can lead to the unavailability and cancellaon of the guarantee; the
guarantee of this welding and cung equipment will no longer be available if aempts have been made to
take the machine apart or the factory-made sealing of the machine has been opened.
The following trouble shoong guide is for your reference only. Lotos Technology will NOT take any liability
or responsibility for any injury or damage caused in such acon(s). Always turn o electrical power and air
supply before performing inspecon and reconnecon.
CAUTIONS: Only qualied technicians are authorized to undertake the repair of this equipment in the case of
machine failure.
Fault Symptoms Rectication
1. While this welding and cutting
equipment is off,
the built-in fan is not functioning,
and there is no output.
1. Possible damage of power supply switch; fix the damage if necessary.
2. Possible unavailability of power supply. Check for failure in power
supply.
3. Possible short-circuit of the input cable. Check it and repair it if
necessary.
2. While this welding and cutting
equipment is operated,
the pilot lamp is on,
no output,
built-in fan unavailable.
1. Possible misconnection with input of 380V, and occurrence
of over voltage protection status. Reconnect with input of
220V, and restart.
2. Possible unstable input due to the unavailable input cable or
possible connection unavailable spells it's being of over-voltage
protection status.
3. Frequently switching on and off of this welding equipmentin
a short period leads this equipment's being of over-voltage
protection. Switch off this welding machine and wait for at
least 3 minutes, then restart this welding equipment.
4. Possible unavailable of the connection of switch and bottom
PCB. Reconnect it.
5. The 24V relay of bottom PCB is possibly damaged. Replaced
it if necessary.
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