Labconco Purifier Filtered PCR Enclosures 3970425 - Manual (Page 45)

Chapter 8: Troubleshooting and Servicer Operating Log
Product Service 1-800-522-7658 41
PROBLEM CAUSE CORRECTIVE ACTION
Blower won’t
operate. Circuit breaker(s) or
Ground Fault
Interrupter. Reset circuit breaker.
Blower wiring is
disconnected. Inspect blower wiring.
Blower switch is
defective. Replace switch.
Motorized impeller or
blower is defective. Replace motorized impeller or blower. See
Chapter 6.
Poor internal Class 5
air conditions. Enclosure sash not
closed. Close sash.
HEPA filter clogged. Replace HEPA filter or increase speed.
Blower and lights
won’t operate. Unit not plugged into
outlet. Plug enclosure into appropriate electrical
service.
Circuit breaker(s)
tripped. Reset or replace circuit breaker.
Light does not work. Lamp not installed
properly. Inspect lamp installation.
Lamp wiring
disconnected. Inspect lamp wiring.
Defective lamp. Replace lamp.
Light switch is
defective. Replace light switch.
Defective electronic
ballast. Replace ballast.
UV closure panel not
installed . Install UV closure panel (UV lights only).
Magnetic switch for
UV closure panel
defective. Replace switch (UV lights only).
UV timer circuit
board defective. Replace circuit board (UV lights only).
UV light timer does
not work No power.
No lights.
No display Power cable to UV light timer circuit board
is disconnected. Verify connection.
Replace circuit board for UV light timer if
it malfunctions.
Airflow monitor
malfunction No power.
No lights.
No display. Power cable to circuit board is
disconnected and needs to be connected.
Sensor cable needs to be connected.
Verify that all airflow monitor interface
cables are connected. Check fuses on
enclosure.
No audible alarm. Alarm has been temporarily silenced using
“SILENCE ALARM.”