Error Codes; Maintenance; Regular Maintenance - Kemppi MLS 2300 ACDC Operating Manual

3.6

errOr COdes

The machine always checks its operation automatically during start-up and reports any
failures detected. If failures are detected during start-up, they are shown as error codes on the
control panel display.
err3: Overvoltage or undervoltage
The machine has stopped the welding because it has detected momentary voltage spikes or
continuous mains over- or under-voltage dangerous to the machine. Check the quality of the
supply network.
err4: power source overheating
The power source has overheated. The cause may be one of the following:
• The power source has been used for a long time at maximum power.
• The circulation of cooling air to the power source is blocked.
• The cooling system has experienced a failure.
Remove any obstacle to air circulation, and wait until the power source fan has cooled down
the machine.
4.

MainTenanCe

Watch out for mains voltage when handling electric cables!
NOTE!
Degree and circumstances of machine utilisation should be taken into consideration when
planning product maintenance. Careful use and preventive maintenance help to avoid
unnecessary production disturbances and breaks. Check the condition of the welding and
connection cables daily. Do not use damaged cables.
EN
4.1

regular MainTenanCe

4.1.1 every sixth months
Disconnect the plug of the machine from the mains socket and wait for ca. 2 minutes
NOTE!
(capacitor charge) before removing the casing plate.
The following maintenance operations should be carried out at least every sixth
months:
• Electric connections of the machine - clean any oxidised parts and tighten any loose
ones.
You must know the correct tension torques before you start repairing the connections.
NOTE!
• Clean the inner parts of the machine from dust and dirt e.g. with a soft brush and a
vacuum cleaner. Do not use compressed air because there is the danger that the dirt
is packed even more tightly in the gaps of the cooling profiles. Do not use a pressure
washer.
Only an authorised electrician may repair the machine.
NOTE!
4.1.2 service contract
KEMPPI service workshops make special service contracts with customers about regular
maintenance. All parts are cleaned, checked and if necessary, repaired. Also the operation of
welding machine is tested.
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