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RXT175P
N
o
.
Breakdown Analysis
Solutions
1
No current out-
put
No voltage input
Check the fuse and or
circuit breaker
Wrong Fuse or breaker rating
Replace with correct rating
fuse or breaker
Thermal over load lamp lit
Allow the unit to cool
2
Bad wire feed
Low wire feed pressure
Tighten the wire tension
adjustment nut
No back tension on reel
Check the wire spool clip
Wire is oxidised
Replace wire spool. Re-
place liner
3
Poor weld pene-
tration
Low input voltage
Check that if input volt-
age is the same with
rated voltage
Bad connection
Check grounding cable/
clamp, make sure of a
good connection.
Contact tip worn
Replace contact tip
4
Porosity in weld
No gas ,little gas or wrong gas
Check all gas
Blockage of gas line
Use compress air to clear the
Blockage
Torch valve has been blocked
Open the welding torch and
check
Bad gas and wire
Gas must be dry, use an-
other type wire
5
No wire feed
Control wire broken or Faulty
switch in the handle
Check by inspection
Wire Control PCB faulty
Replace the PCB
TROUBLESHOOTING GUIDE