Product Manual

. A complete Parts List is available at www.HobartWelders.com
OM-272 181 Page 27
7-5. Status/Trouble Lights
. Difficulty establishing a pilot arc may indicate consumables need to be cleaned or replaced.
V
REWOP
ERUSSERP
PUC
PMET
Light Condition Status/Possible Cause
Power On Input power is okay.
Pressure/Cup/Temp
Off When Power light is on, system is normal if these lights
are off.
Power Flashing rate is steady. Input power below 92 volts AC or above 276 volts AC.
Pressure On No or low [below 50 psi (345 kPa)] input pressure.
Pressure
Flashing rate is steady. Regulated pressure in the unit is low. Check torch for
leaks. Check input pressure to unit is between 90 to 120
psi (621 to 827 kPa).
Cup
On Torch cup is loose or off. Once cup is tightened, unit
power must be cycled off and back on again.
Cup
Flashing rate is steady. No pilot arc was established. Check consumables or
torch.
Temperature
On Power source overheated (see Section 4-4). Stop cutting
and allow unit to cool down.
Temperature
On (indefinitely) Power source temperature sensors may have failed or
ambient temperature is below -31° F (-35° C).
For system troubleshooting see Section 7-9 and Section 7-10.
7-6. Checking Shield Cup Shutdown System
1 Torch Shield Cup
Turn Power On and loosen shield
cup. If shutdown system works
properly, Cup light comes on. If not,
immediately turn Off power and
have Factory Authorized Service
Agent check unit.
If system works properly, retighten
cup and reset power.
Ref. 253 554-A
1
. Power must be reset whenever the cup
shutdown system is activated. Always
turn Off power when changing or
checking consumables. Do NOT
overtighten torch shield cup. Gently
finger tighten cup onto torch.