Troubleshoot Common Problems
11 2 811470 Operator Manual Powermax45 SYNC
Troubleshoot torch stuck open (TSO) fault codes that occur during postflow
A start signal during postflow causes the remaining air pressure in the torch lead to quickly
decrease. If the pressure does not decrease quickly enough, the electrode may not go back to its
closed position in time to make the pilot arc. A torch stuck open error occurs.
If you try to fire the torch during postflow and get a torch stuck open error, do the these steps. After
each step, try to fire the torch again.
1. Reset the torch.
Move the torch lock switch to the LOCK position and then back to the “ready to fire”
position.
2. Try a different cartridge. Refer to Step 4 – Install the cartridge on page 48.
3. Do an inspection of the torch lead.
Does the torch lead have any kinks or bends? Do not bend
the torch lead around a radius that is less than the minimum
bend radius of 76 mm (3.0 inches).
Are there cable ties around the torch lead that are too tight?
Are there any signs of a gas leak?
4. Do a gas pressure test.
Refer to Do a gas test on page 109.
Refer to Inlet gas pressure requirements (while gas is flowing) on page 40.
5. Try a different torch.
If the torch does not fire, there could be a problem with the plasma power supply instead of
the torch. Speak to your distributor or authorized repair facility.
Troubleshoot power-related problems with generators
Problems with input line voltage ( LED flashes) can occur more frequently with some
generators. If a fault occurs while you are using a generator, it is possible that doing a quick
restart does not remove the fault condition. Instead, set the power switch on the plasma
power supply to OFF (O) and wait approximately 1 minute before setting the power switch
to ON (I).
If you continue to have problems with input line voltage, disconnect the plasma power
supply from the generator, and connect it to a power receptacle with sufficient power.
Refer to page 36 for generator specifications.
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