CANAWELD MMA 201, Руководство пользователя

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14
TROUBLESHOOTING
Problem Remedy
No welding output; unit completely inoperative;
ready light (LED) Off. 1) Be sure power cord is plugged in and that
receptacle is receiving input power.
2) Check if the Power switch is in ON
position.
3) Check and replace line fuse(s), if
necessary, or reset circuit breaker.
No welding output; ready light (LED) On. 1) Check and secure loose welding cable(s)
into receptacle(s).
2) Check for poor connection of ground
clamp to workpiece, correct if loose.
No welding output; high temperature light
(LED) On. 1) Unit overheated causing thermal
shutdown. Allow unit to cool with fan
ON.
2) Check for blocked/poor airflow to unit
and correct.
3) Reduce duty cycle or amperage.
Turn on the machine, the power LED is off, the
fan doesn't work, and no welding output. 1) No input power.
2) Check if machine is connected to power
source.
Machine is on, the fan functions, but the output
current is unstable and can't be controlled by
potentiometer when welding. 1) The current potentiometer has failed.
Replace it.
2) Check if any loose contact exists inside
the machine. If any, reconnect.
Machine is on, the power LED is on, the fan
functions, but there is no welding output. 1) Check if any loose contact exists inside
the machine.
2) Open circuit or loose contact at the joint
of output terminal.
3) The overheating LED is on.
a) The machine is under over-heating
protection status. It will reset
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 has a
loose connection, and adjust it if
necessary.
The electrode holder becomes very hot during
welding. 1) The rated current of the electrode holder
is smaller than its actual working current.
Replace it with a higher rated electrode
holder.
Excessive spatter in SMAW welding. 1) The output polarity connection is
incorrect, exchange the polarity.