Electrical Trouble Shooting - Weldtronic TTIG200PADP Operating Manual

5.3 Electrical Trouble Shooting

In the event of equipment malfunction, contact an authorized service agent
The following operation requires sufficient professional knowledge on electric aspects and comprehensive
safety knowledge. Make sure the input cable of the machine is disconnected from the electricity supply and
wait for 5 minutes before removing the machine covers Before taking your unit for servicing, check the list
below.
Trouble
Turn on the power source,
1 and fan works, but the
power pilot lamp is not on.
Turn on the power source,
2 and the power lamp is on,
but fan doesn't work
Turn on the power source,
3 the power lamp is not on,
and fan doesn't work
The number on the display is
4
not intact.
The max and min value
5 displayed doesn't accord
with the set value.
No no-load voltage output
6
(MMA)
There is spark
on the HF
igniting board.
Arc cannot
7 be ignited
(TIG)
There is not
spark on the
HF igniting
board.
TitanTig 200P ACDC Pro Operators Manual Issue. A 0516
Reason
The power light damaged or connection is
not good
The transformer of power is broken
Control PCB failures
There is something in the fan
The start capacitor of fan damaged
The fan motor damaged
No power supply input
The fuse inside the machine damaged
The LED in the display is broken
The max value is not accordant (refer to
§3.1)
The min value is not accordant (refer to
§3.1)
The machine is damaged
The welding cable is not connected with the
two output of the welder.
The welding cable damaged.
The earth cable connected unstably.
The welding cable is too long.
There is oil or dust on the workpiece.
The distance between tungsten electrode
and workpiece is too long.
The HF igniting board does not work.
The distance between the discharger is too
short.
Solution
Check and repair Pr7
Repair or change the transformer
Repair or change the control Pr4
Clear out
Change capacitor
Change fan
Check whether there is power
supply
Change it (3A)
Change the LED
Adjust potentiometer Imin on the
power board.
Adjust potentiometer Imaxin the
current meter.
Check the main circuit and the Pr4.
Connect the welding cable to the
welder's output.
Repair or change it.
Check the earth cable.
Use an appropriate welding cable.
Check and remove it.
Reduce the distance (about 3mm).
Repair or change Pr8
Adjust this distance (about
0.7mm).