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69
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12. MAINTENANCE AND TROUBLESHOOTING
(Continued)
12.5 Troubleshooting
When an error code is displayed, refer to Section 12.4“How to solve an error”.
⚫
Check the troubleshooting information listed below before contacting your dealer for service.
No.
Trouble (Phenomenon)
Cause
Solution
1
The Power switch tripping.
Never turn it on again. Contact your dealer.
2
Indicator for main
power supply
(PL1) does not
light.
After turning on the
power switch, the digital
meter lights up.
Trouble with PL1.
Inspect PL1.
When turning on the
power switch, the digital
meter has no display, and
the fan does not rotate.
The line disconnect switch is
not turned on.
Inspect the
power box.
The input cables are not surely
connected.
Inspect the
input cable.
3
When turning on
the power switch,
nothing appears
in the display.
Indicator for main power
supply (PL1) not lighting
up.
Refer to No.2 in this list.
PL1 lights.
Trouble with the power circuit.
After Inspecting
PCB P30110Q,
replace them if
necessary.
4
When turning on the power switch, an error
code appears in the display.
Refer to “12.4 How to Solve an Error”.
5
No gas flows out
after pressing the
torch switch.
Still no gas flows out
when pressing GAS
CHECK key.
The discharge valve on the gas
cylinder is closed.
Open the valve.
Insufficient gas pressure of the
gas cylinder.
Check for
proper gas
pressure.
Trouble with the gas solenoid
valve SOL.
Inspect the gas
solenoid valve
SOL.
Gas flows out after
pressing GAS CHECK
key.
Disconnection of the torch
switch cable or incomplete
insertion to receptacle.
Check wiring
number
151,152.
6
Shielding gas supply does not stop.
The gas check lamp lights up.
Press GAS
CHECK key to
stop gas check.
Trouble with the gas solenoid
valve SOL.
Check for the
operation of the
gas solenoid
valve (SOL) on
the wire feeder.
