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VI. TROUBLESHOOTING
6.1 General GSS-U Sampler Troubleshooting
DANGER
CARELESS OR ACCIDENTAL RESTORATION OF POWER CAN RESULT IN DEATH OR
SERIOUS INJURY. MAKE CERTAIN AREA IS CLEAR BEFORE REMOVING LOCKOUTS.
SYMPTOM
POSSIBLE CAUSE
CORRECTIVE ACTION
Sampler does not cycle in either
Power switch OFF.
Turn power switch ON.
auto or manual modes
Circuit breaker is open.
Reset breaker.
(Power light Off).
Main fuse is blown.
Replace. Refer to Section 4.1.9.1.
Faulty supply wiring.
Correct. Refer to certified electrical
schematic.
Defective power switch.
Replace switch.
Sampler does not cycle in either
auto or manual modes
Faulty system wiring.
Correct. Refer to certified electrical
schematic.
(Power light On).
PC board fuse is blown.
Replace. Refer to Section 4.1.9.3.
Motor fuse is blown.
Replace. Refer to Section 4.1.9.2.
Defective clutch solenoid.
Replace. Refer to Section 5.4.2.
Sampler timer T-1 digital display
does not illuminate but sampler
Defective auto/manual switch S-2.
Replace switch if line voltage is
absent across #1 & #2 on timer T-1.
works in manual mode.
Defective timer T-1.
Replace timer if line voltage is
present across #1 & #2 on timer T-1.
Sample size too small or large.
Solenoid time on setting too low or
high.
Adjust solenoid time setting on
PC board refer to Section 4.1.9.5.
Auger tube doesn't stop at its home
position.
Solenoid wired improperly.
Correct. Refer to the certified
electrical schematic.
Sampler leaks air or material
continuously out the sample
discharge.
Sampler installed on a positive
pressure line.
Relocate to a non pressurized line.
