TROUBLESHOOTING
HOW TO USE TROUBLESHOOTING GUIDE
This Troubleshooting Guide is provided to help you locate and re-
pair possible machine malfunctions. Simply follow the three-step
procedure listed below.
Step 1. LOCATE PROBLEM (SYMPTOM).
Look under the column labeled "PROBLEM
(SYMPTOMS)". This column describes possible symptoms that
the machine may exhibit. Find the listing that best describes the
symptom that the machine is exhibiting.
Step 2. POSSIBLE CAUSE.
The second column labeled "POSSIBLE CAUSE" lists the obvi-
ous external possibilities that may contribute to the machine
symptom.
Step 3. RECOMMENDED COURSE OF ACTION
This column provides a course of action for the possible
cause, If you do not understand or are unable to perform the
Recommended Course of Action safely, contact YESWELDER
[email protected].
OBSERVE ALL SAFETY GUIDELINES DETAILED THROUGHOUT THIS MANUAL
Type
Alarm
Error Code
Welder Reaction
Reason
Solutions
Over-heat
Display error code
E-1
Temporary close of
main circuit
Over-working
of main circuit
Do not power off; restart welding
when the overheat indicator stop
lighting up.
Under
-voltage
Display error code
sound
E-2
Permanently close
main circuit and
need to restart the
machine
Power grid
under-
voltage(lower
than 96VAC)
Please restart the welder; if
warning still remains, If there is a
c o n t i n u o u s p o w e r g r i d
undervoltage, please wait and
restart welder when the power
grid is back to normal. If power
grid voltage is normal but with
undervoltage warning, please
c o n t a c t p r o f e s s i o n a l
maintenance personnel.
Over
-voltage
Display error code
E-3
Permanently close
main circuit and
need to restart the
machine
Power grid
over
voltage(more
than 265VAC)
Please shut off the welder and
restart. If there is a continuous
power grid overvoltage, please
wait and restart welder when the
power grid is back to normal. If
power grid voltage is normal but
with overvoltage warning, please
c o n t a c t p r o f e s s i o n a l
maintenance personnel.
Abnormal
Display
error code
E-4
Permanently close
main circuit
Load current is
too big or main
power device
is under over-
current
protection.
Pleas restart welder. If the
warning still remains, please
c o n t a c t p r o f e s s i o n a l
maintenance personnel.
46
Summary of Contents for CT2050
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