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O P E R A T O R ’ S M A N U A L
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5.3 TROUBLESHOOTING
The Model 205 has the ability to monitor certain functions. If they are not working
correctly a system fault will alert the operator to the problem.
SYSTEM FAULT CORRECTIONS
When a System Fault occurs prior to or during welding it is required for the operator to
clear the fault condition before continuing.
Some faults are only temporary and the fault is corrected when the arc goes out. But all
faults will cause the FAULT SCREEN to appear and let the operator know why the
sequence was stopped.
The following is a general description of the cause of each type of fault and some
recommendation for correction. In all cases, when the fault is corrected the operator
must press the OK button to close the FAULT SCREEN.
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TEMPERATURE - the Model 205 has an internal temperature sensor (thermal switch).
If the Power Supply internal temperature rises above the safe limit, a TEMPERATURE
fault occurs. This can only occur if there is some type of blockage of air circulation, fan
failure, component failure within the Power Supply, or that the system is being operated
in ambient air temperatures above or below its rating of 0° C (32° F) and 45° C (104° F)
/ 95% humidity (non-condensing).
This Fault should only occur during an actual weld sequence. If it occurs when the
machine is not welding then a serious internal problem exists. In this case turn the
Power Supply OFF and call an AMI Service representative.
•
GAS - this fault will occur at the beginning of a weld sequence or during a weld
sequence. If arc gas flow through the system should stop or fall below 7 CFH, a fault
will occur.
Check that the Gas Source is turned on and that adequate gas is available. Check all
gas hoses and connections for free flow. This is usually the problem.
