32
Table of service
codes
(continued)
Err | 26.x (code no.26)
Cause: config memory (CFM) „machine“ fault, x stands for:
1 config memory not found
2 checksum error
3 CFM undescribed
5 unknown PC board type
8 invalid identifier (identifier UST1 to UST2)
Remedy: check cable harness. change config memory on power source cable
harness.
Err | 31.x (code no.31)
Cause: EEProm save error
Remedy: update software. Change UST2 PC board.
Err | 70.x (code no.70)
Cause: fault with the digital gas control option, x stands for:
1 no sensor found
2 no shielding gas
3 calibration fault
4 shielding gas solenoid valve interruption or short circuit
5 no shielding gas solenoid valve found
Remedy: for cause x
1 check cable harness, change shielding gas sensor
2 check shielding gas supply (min. 2 bar)
3 no or insufficient shielding gas, change shielding gas solenoid valve
4 change shielding gas solenoid valve, change shielding gas sensor
5 check cable harness, change shielding gas solenoid valve
Err | 71.x (code no.71)
Cause: Limit failure, x stands for:
1 upper current limit exceed
2 exceed of lower current limit
3 voltage limit exceeded
4 exceed of lower voltage limit
Remedy: check application. check parameters.
hot | H2O (code no.65)
Cause: in conjunction with thermostat option: Overtemperature in cooling system
Remedy: allow cooling unit to cool down. Open cooling unit and clean heat exchan-
ger. Check whether ventilator is functioning properly.
no | Arc (code no.58)
Cause: arc is broken, arc-break monitor has tripped
Remedy: check welding parameters. Reignite arc Check grounding (earthing)
connection.
no | GAS (code no.57)
Cause: in conjunction with the digital gas control option: no shielding gas available
Remedy: check shielding gas supply
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