Operator`s manual

Maintenance LTW 20Z
62 wc_tx001061gb.fm
4.10 Troubleshooting
DANGER
High voltage! This machine uses high voltage circuits capable of causing serious
injury or death.
f Only a qualified electrician should troubleshoot or repair electrical problems
occurring in this equipment.
Problem / Symptom Reason Remedy
Lamp will not light Lamp is too hot Allow lamp to cool 10–15 minutes
before restarting.
Faulty lamp connection Check that lamp is tight in socket.
Check connections inside connection
boxes on light fixtures and tower.
Lamp broken or burned out Check for:
 broken arc tube or outer lamp
jacket
 broken or loose components in
lamp envelope
 blackening or deposits inside lamp
tube.
Circuit breaker turned on Turn off circuit breaker.
Circuit breaker loose or
defective
Have a licensed electrician repair or
replace the circuit breaker.
Generator output incorrect Check incoming voltage to ballast.
Incoming voltage should be 120V ±
5V. If voltage is incorrect, engine
speed may need to be adjusted or
generator may require service.
Low or no ballast output With the fixture cord removed from its
receptacle, the voltage should mea-
sure 400 to 445 VAC. If proper voltage
is not achieved, perform capacitor
check to determine if capacitor or coil
needs to be replaced.
Low light output Lamp degraded Replace lamp due to normal lamp life.
Low ballast output Check ballast for proper voltage out-
put.
Fixture or lens dirty Clean reflective surface inside fixture
and both inside and outside surface of
glass lens.