Trobleshooting - Helvi COMBI PC 502 K Manual De Uso Y Manutención

TROBLESHOOTING

SYMPTOM
GREEN LED OFF, Fan not operat-ing. No Input
Power.
GREEN LED ON, YELLOW Overtemperature /
under pressure LED ON. Unit is overheated.
GREEN LED ON, YELLOW Overtemperature /
under pressure LED blinks. No air low in purge
or pre-low.
GREEN LED ON, YELLOW Overtemperature /
under pressure LED OFF, no air low when torch
switch pressed.
GREEN LED ON, YELLOW Overtemperature
/ under pressure LED OFF. Air lows, Pilot arc
does not start.
Torch has pilot arc but does not cut.
14
POSSIBLE CAUSE AND REMEDY
1. Plug unit into 230V outlet.
2. Reset Breaker.
1. Make sure the unit has not been operated
beyond duty cycle limits.
2. Air Flow obstructed.
1. Air not connected or pressure too low. Check
source for at least 5 Bar (72.5 PSI) during pur-
ge or pre-low, adjust air pressure to 4,5 Bar (65
PSI).
2. Air ilter or air line blocked, torch blocked. Re-
place ilter cartridge. Check that air line and torch
leads are free of twists and kinks.
1. Shield cup not properly installedon torch. Che-
ck that shield cup isfully seated against torch.
2. Faulty Torch Switch or Parts Assembly in torch
holder. Refer to Maintenance paragraph.
3. Faulty Main PC Board Repair / Replace Power
Supply.
1. Faulty torch parts. Inspect torch parts and re-
place if necessary.
2. Gas pressure too high. Set pressure to 65 psi
(4.5 BAR).
3. Faulty main PC Board. Repair /replace.
1. Work lead not connected. Make sure work lead
is connected securely to bare metal.
2. AC input power too low. Use shortest distance
to breaker panel possible.
3. Faulty Main PC Board.Repair/Replace.