Troubleshooting
Troubleshooting LED Lights 9.2
89
[en-US] | 02/2023 | 5100065071 | LTV 4L/6L | Operator’s Manual
Problem
Cause
Remedy
No light (lamp)
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.
Plug connection at fixture is loose or
damaged
Repair or replace the plug connection.
Lamp broken or burned out
Check for the following:
• broken arc tube or outer lamp jacket
• broken or loose components in lamp en-
velope
• blackening or deposits inside lamp tube
Circuit breaker turned on
Turn off circuit breaker.
Circuit breaker loose or faulty
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 ad-
justed or generator may require service.
Low or no ballast output
With the fixture cord removed from its re-
ceptacle, the voltage should measure 400 to
445 VAC. If proper voltage is not achieved,
perform capacitor check to determine if ca-
pacitor 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 output.
Fixture or lens dirty
Clean reflective surface inside fixture and
both inside and outside surface of glass
lens.
Power winch models:
Tower does not fully extend
Clutch needs adjustment
For further information, see
Adjusting the
Power Winch Clutch
9.2
Troubleshooting LED Lights
Problem
Cause
Remedy
Entire light does
not illuminate
The circuit voltage exceeds the applicable LED
light voltage range.
Adjust the circuit voltage to ensure it is within
the applicable LED light voltage range.
The circuit connection point of the input end of
the LED light (or LED module) is loose or poorly
connected.
Tighten the connection point to ensure there
is no looseness.
The driver power supply input wire soldered joint
on the PCB board is off or is a rosin joint.
Re-solder the joint firmly.
There is insufficient or no output voltage at the
output end of the drive power supply.
Replace the drive power supply.
9
Summary of Contents for LTV 4L
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