21
CUSTOMER/OPERATOR SERVICE
Manual 0-2577
SYMPTOM POSSIBLE CAUSE REMEDY
A. AC indicator not lighted.
Fan does not turn.
B. AC indicator lighted.
(TEMP) indicator lighted.
C. AC indicator lighted,
(TEMP) indicator dark, no
gas flow in SET.
D. AC indicator lighted,
(TEMP) indicator dark, no
gas flow in RUN when
torch swirch pressed.
E. AC indicator lighted,
(TEMP) indicator dark, GAS
indicator lighted, gas flows,
DC indicator lit. Torch does
not pilot.
F. Torch pilots but does not
cut.
1. Circuit Breaker open.
1. Unit is overheated.
2. Airflow obstructed.
3. Pilot circuit overheated.
Temp indicator lits mo-
mentarily and unit shuts
down.
1. Gas not connected or
pressure too low.
2. Air filter or air line blocked
(GAS indicator dark).
Torch leads blocked (GAS
indicator lit).
1. Sheild cup not properly
installed on torch.
2. Faulty PIP assembly in
torch holder.
1. Faulty torch parts
2. Gas pressure too high.
1. Work lead not connected.
2. AC input too low.
1. Reset Breaker. Use 15
amp or greater service.
1. Make sure the unit has
not been operated
beyond 40% duty cycle
limit.
2. Provide at least 12 inch
clearance on each side.
3. Check for proper torch
parts assembly, or for
shorted torch head. See
Section 4.5
1. Check source for at
least 50 psi (3.5 BAR).
In SET position, adjust
gas pressure to 50 psi.
2. Replace filter cartridge.
Check that air lines and
torch leads are free of
twists and kinks.
1. Check that shield cup
is fully seated against
torch head.
2. See Servicing Torch
Head Components,
Section 4.7
1. Inspect torch parts and
replace if necessary.
See Section 4.5
2. Set pressure to 50 psi
(3.5 BAR).
1. Make sure work lead is
connected securely to
bare metal.
2. Check that AC plug to
line cord connections
are tight.
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