www.parweld.co.uk
Description Possible cause Remedy
A total loss of
power, pilot
lamp is off,
no output,
the fan is not
operating
(a) Failure of input
voltage
(b) Possible over voltage
(c) Internal fault with the
machine
(a) Re-establish
mains supply
(b) Check voltage
and if necessary
move machine to
alternative supply
(c) Have a qualied
service engineer
inspect then repair
the welder
Fault lamp is
on, no power
output
(a) Machine overheated
(b) Over current state
(c) Internal fault with
machine
(a) Allow to cool
with fan running
(b) Switch off
mains power to the
machine and re start
(c) Have a qualied
service engineer
inspect
then repair the
welder
ROUTINE MAINTENANCE
The only routine maintenance required for the power supply is a
thorough cleaning and inspection, with the frequency depending on
the usage and the operating environment.
Warning
Disconnect primary power at the source before removing the cover.
Wait at least two minutes before opening the cover to allow the
primary capacitors to discharge.
To clean the unit, remove the screws securing the outer cover,
lift off the outer cover and use a vacuum cleaner to remove any
accumulated dirt and dust. The unit should also be wiped clean,
if necessary; with solvents that are recommended for cleaning
electrical apparatus.
FAULT
FINDING
14
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