Labconco Protector 3930000 User Manual page 71

PROBLEM CAUSE
Low face velocity Enclosure sash not
or poor closed.
containment of
contaminants.
HEPA filter clogged
on FilterMate.
Carbon filter loaded
with chemicals.
Blower and lights Unit not plugged into
won't operate.
outlet.
Lights do not Circuit breaker(s)
work. tripped.
Lamp not installed
properly.
Lamp wiring
disconnected.
Defective lamp.
Light switch is
defective.
Defective electronic
ballast.
Airflow monitor No power.
malfunction. No lights.
No display.
No audible alarm.
Wrong alarm set
point.
Constant audible
alarm.
Product Service 1-800-522-7658
Chapter 8: Troubleshooting
CORRECTIVE ACTION
Close sash to the lowest position.
Replace HEPA filter or increase speed.
Replace carbon filter.
Plug enclosure into appropriate
electrical service.
Reset or replace circuit breaker.
Inspect lamp installation.
Inspect lamp wiring.
Replace lamp.
Replace light switch.
Replace ballast.
Power cable to circuit board is
disconnected and needs to be
connected. Sensor cable needs to be
connected. Power supply is not
plugged into proper voltage; plug in
power supply. Verify that all airflow
monitor interface cables are
connected. Check circuit breaker on
enclosure.
Alarm has been temporarily silenced
using "SILENCE ALARM" or "enter"
buttons.
Airflow monitor was not properly
adjusted. Repeat calibration steps
outlined in this manual in Chapter 6 or
in the supplied Guardian 1000 Digital
Monitor Manual.
Check airflow and calibration of airflow
monitor. See Chapter 6.
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