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BOC Smootharc TIG 200 ACDC Operating Manual
12.0 Troubleshooting and fault finding
Troubleshooting
No
Trouble
Causes
Remedy
1
Indicator lights of display board do not light
up. Fan does not run. No output when machine
switches on.
1. Power switch is damaged
2. No electricity on the electricity grid
1. Check power switch
2. Check power supply on the electricity grid
3. Open circuit in power supply cable
3. Check the connection of power supply cable
2
Indicator lights of display board light up. There is
no E04 on display screen but welding machine
does not have output.
1. Over-current protection
1. Turn off the machine, and turn on after
one minute
2. Output cable is not well connected
3. Main control board is damaged
2. Check connection of output cable
3. Check and repair
3
Circuit breaker on the switchboard trips while
welding
1. Following devices may be damaged: MOSFET,
output diode, etc.
2. Input rectifier bridge is damaged
Check and replace
4
Welding current is unstable
1. Display board is damaged
2. Main control board is damaged
3. Bad connection within the welding machine,
especially at connectors
Check and replace
5
Welding current is not adjustable
1. Display board is damaged
2. Main control board is damaged
3. Foot pedal is damaged
Check and replace
6
Display E04 (overheat protection)
1. Welding current is too high
2. Environmental temperature is too high
1. Change on open load mode and cool down
2. Change on open load mode and cool down
3. Temperature relay is damaged
3. Replace
7
Display E02 (Switch is abnormal)
1. Torch trigger or foot pedal switch is often on
1. Check
2. Control wiring harness plug of the display
board is damaged or not well connected
3. Main control board is damaged
2. Check connection
3. Check and replace main control board
Error code display
Code Trouble
Causes
Remedy
E10
Torch trigger is normally closed
1. Torch trigger (foot pedal switch) keeps
pressing when on open load mode
1. Release trigger or check trigger
2. Torch trigger cable has short circuited
2. Check cable connection
3. Replace
E13
Arc stabilising circuit is over current protection
1. Arc stabilising circuit has a problem
1. Check and repair
E16
Fan is abnormal
1. Fan motor is locked- rotate
2. Fan is damaged
1. Check and repair
2. Check and replace
E19
Overheat protection
1. Machine internal is too hot
1. Wait for machine to cool down
2. Temperature relay is damaged
2. Replace
IMPORTANT:
Only authorised repair agents with valid certifications should carry out repairs and internal servicing.
Содержание BOC Smootharc TIG 200 ACDC
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