Trouble - Shooting - Jackle conMIG 445 Betriebsanleitung

40. Trouble - shooting

Any remedial action to defective electrical equipment must be carried out by a qualified electrician!
Malfunction/error
Display
T°C – 01/02/03 – hot
Display
T°C – int – e.g. +56
(See Point 20)
Display (continuously)
Err H2o ---
(To clear switch machine off
and on)
Display (continuously)
Err CAn
Main switch ON
1 or 2 green Indicator lights
on the front plate are not lit
(see control elements)
Main switch ON
Green control lamps are light
Control box MC without
function
No function after pressing
torch trigger key
Fire feed motor out of service
Wire buckling between wire
feed rollers and guide tube
Irregular wire feed
Porous weld seam
Wire burns back into current
contact tip at start of process
Operating manual
Cause
Machine overheated
(See Point 33)
Thermal sensor line interrupted
Wrong type of machine in the control
box set
Ambient temperature below -10 ° C or
above +40 ° C
Thermocouple defect in the control box
Water tank empty
Water flow below 0.25 l / min
Flow meter is defective
Communication between wire feed case
(control box MC) and machine is
disconnected
Failed one or more system phases
Fuse in the front plate defective
Secondary fuse on auxiliary transformer
defective
Fuse in control box MC defective
Cable in torch hose pack defective /
broken
Torch trigger defective
Torch control line interrupted
Control box MC defective
Control box MC defective
Fire feed motor defective
Wiring between control box and Motor
interrupted
Pressure of the wire feed rolls to big
Distance from wire feed rollers to guide
tube too far
Bad uncoiling of wire
Wire-holding arbour runs heavily
Wrong wire feed roller
Dirty / defective wire guide tube or spiral
Cogged / defective current contact tip
Dirty/ rusty welding wire
Wire guide tube misaligned with wire
feed roller groove
Work piece surface polluted(paint, rust,
oil, grease)
No shielding gas(solenoid valve not
opening)
Insufficient shielding gas
Gas nozzle polluted
Deficient wire feed, feed rollers idling
conMIG 400/445/545
Remedy
Machine to cool down with a
running fan
Look for and eliminate interruption
Contact service partner
Bring Machine into normal
temperature range
Change control box
Sensor repaired
Fill in cooling water with alcohol in
the ratio 4:1
Check water flow
Torch / pipe
Flow meter exchange
Intermediate hose pack - cable
broken, plug defective
controlbox MC or control pcb
inside the welding machine
defective
Check main supply and fuses
Change fuse 2A slow
Change fuse 6,3A slow
Change fuse 6,3A slow
Check 5 pole cable
Change torch trigger
Check torch control line
Change control box
Change control box
Change wire feed motor
Check wiring
See chapter 32
Check distance / realign wire
guide tube
Check / refit wire coil
Check wire- holding arbour
Use the right wire feed roller
See chapter 32
See chapter 32
Clean / exchange current contact
tip
Exchange welding wire
See chapter 32
Clean surface
Check / exchange solenoid valve
or gas tube
Check shielding gas at pressure
reducer
Check gas line for leakage
Clean gas nozzle
See chapter 32
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