Document UT-MT-0708_EN
Page 17 of 17
Edition 11/03/2014
Supersedes edition 11/14/2013
LED ELEVATED HELIPORT LIGHT LHE
INSTRUCTION MANUAL FOR USE, INSTALLATION AND MAINTENANCE
Problem
Possible cause
Solution
Luminous source not
working
LEDS DEFECTIVE
Replace the LEDs board
POWER PCB DEFECTIVE
Replace the Power PCB
Moisture inside the fixture
Execute leakage test and replace
damaged components. Clean and
dry the inside area of the fixture
No connection of primary circuit
Check transformer output current
with A-meter
Defective isolation transformer or
secondary wiring
Check power line between the
light fixture and the transformer,
including connectors
Water or moisture inside
the fixture
Lens gasket
Replace the gasket
Pinched fixture power cables
Replace fixture leads
T
