ESAB A120 Operating Manual page 108

Problem - Symptom
FAULT & 80 PSI 1. Torch shield cup is loose.
indicators flashing. 2. Torch tip, electrode or starter
Gas flow is cycling cartridge missing.
ON and OFF. 3. Torch start cartridge is stuck.
4. Open conductor in torch leads.
5. Problem in the torch and leads
switch circuit.
6. Failed components in unit.
Nothing happens 1. Problem in the torch and leads
when torch switch switch circuit (Remote pendant
or remote switch switch circuit).
is closed (Or CNC 2. CNC Controller device not
START signal is providing Start signal.
active) No gas flow, 3. Failed components in unit.
DC LED OFF.
FAULT and 85 PSI 1. Upper O-Ring on torch head is
indicators flashing. in wrong position.
2. Torch starter cartridge is stuck.
3. Worn or faulty torch parts.
4. Shorted Torch.
5. Temporary Short indicated by 5
blinks per second.
6. Power Supply Failure (Standard
rate of blinking)
No Fault lights ON, 1. Failed components in unit.
no arc in torch.
FAULT and 85 PSI 1. Internal Error
indicators flashing
Pilot arc is ON but 1. Work cable not connected to
cutting arc will not work piece.
establish 2. Work cable/connector broken.
3. Failed components in unit.
Torch cutting is 1. Incorrect current setting.
diminished 2. Worn torch consumables.
3. Poor work cable connection to
work piece.
4. Torch being moved too fast.
5. Excessive oil or water in torch.
6. Failed components in unit.
0-5430
Possible Cause
1. Tighten shield cup by hand. Do not overtighten.
2. Turn OFF power supply. Remove shield cup. Install
missing parts.
3. Turn OFF power supply. Bleed down system pressure.
Remove shield cup, tip and start cartridge. Check start
cartridge lower end fitting for free movement. Replace if fitting
does not move freely.
4. Replace torch and leads or return to authorized service
center for repair or replacement.
5. Replace torch and leads or return to authorized service
center for repair or replacement.
6. Return to authorized service center for repair or
replacement.
1. Take Torch and Leads (Remote Pendant) to Authorized
Repair Facility.
2. Contact Controller manufacturer.
3. Return to authorized service center for repair or
replacement.
1. Remove shield cup from torch; check upper O-Ring
position; correct if necessary.
2. Turn OFF power supply. Bleed down system pressure.
Remove shield cup, tip and starter cartridge. Check starter
cartridge lower end fitting for free movement. Replace if fitting
does not move freely.
3. Inspect torch consumable parts. Replace if necessary.
4. Replace torch and leads or return to an authorized service
center for repair.
5. Release torch switch and reactivate.
6. Return to authorized service center for repair or
replacement.
1. Return to an authorized service center for repair.
1. Turn the ON / OFF switch OFF then back ON again. If that
does not clear the fault, return to an authorized service center
for repair.
1. Connect work cable.
2. Replace work cable.
3. Return to an authorized service center for repair.
1. Check and adjust to proper setting.
2. Check torch consumables and replace as needed.
3. Check the connection of the Work Lead to the work piece.
4. Reduce cutting speed.
5. Refer to "Check air quality" in section 3 Torch.
6. Return to an authorized service center for repair.
SERVICE
CUTMASTER A120
Recommended Action
5-5