TROUBLESHOOTING
0463 428 001
- 13 -
© ESAB AB 2017
Cooling fan
1.
Connect a TIG torch to the welding power source and to the coolant connectors on
the cooling unit.
2.
Trigger start of welding and wait at least 10 seconds.
3.
Measure the voltage between pins 3 and 1 of connector CN3 on the cooler board
5AP1. The voltage should be
25 ±2 V
.
If there is no voltage, replace the cooler board (see section
“Replacing the cooler
board”
, page 23).
If the voltage is within the specification given above but the fan is still not running,
replace the fan (see section
“Replacing the cooling fan”
, page 22).
Water pump
1.
Connect a TIG torch to the welding power source and to the coolant connectors on
the cooling unit.
2.
Trigger start of welding and wait at least 10 seconds.
3.
Measure the voltage between pins 1 and 2 of connector CN2 on the cooler board
5AP1. The voltage should be
25 ±2 V
.
If there is no voltage, replace the cooler board (see section
“Replacing the cooler
board”
, page 23).
If the voltage is within the specification given above but the pump is still not running,
replace the pump (see section
“Replacing the water pump”
, page 21).
