LYNC UV-H
SECTION 6: TROUBLESHOOTING
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Troubleshooting Guide
System Status
Possible Cause
Corrective Action
No Power (LED is off,
touchscreen is off)
Ground-fault circuit-interrupter
(GFCI) tripped.
Check for water leaks. Reset GFCI.
Fuse Blown.
Check for water leaks. Replace fuse (see Fig. 4.4 for
fuse location)
Touchscreen pcb not connected to
power pcb.
Ensure ribbon cable is connected at both ends.
Circuit Board is damaged.
Confirm if Power pcb has any illuminated LEDs. If so
replace Touchscreen pcb (LCD).
UV Lamps not starting (occurs
after 6 unsuccessful
attempts)
UV Chamber interlock not
engaged.
Check that each latch is correctly positioned and
secure UV chamber door.
# of lamp starts have exceeded
specification.
Review Total Lamp starts in System Info Menu.
Replace lamps but reduce future lamp cycles.
UV lamp failure
Replace lamps
UV Ballast Failure
Replace ballast
Over temperature condition.
Either the system, pcb or water temperature has
occurred. Allow to cool off and investigate cause by
reviewing Message History.
UV Lamps on but UVI is low
Lamps are warming up after a
power interruption.
Allow lamps up to 15 minutes to reach full power
New LPHO lamps installed.
First time LPHO lamps are turned on it may take 3 to 4
hours to reach full power. After this initial “burn
-
in”,
warmup time will be a few minutes.
The UV output of the lamps have
diminished.
Lamps have exceeded their lifetime. Replace lamps.
# of lamp starts have exceeded specification. Replace
lamps but reduce future lamp cycles.
UV sensor requires
recalibration/replacement.
Install reference sensor to confirm status of unit
sensor.
UV Lamps operating outside of
recommended temperature
conditions.
Check if UV blower is operating correctly.
For cold water applications, increase room
temperature or alter LPHO lamp heater settings.
Water Temperature High
Warning & Alarm
Warning issued when water
temperature within the UV
chamber exceeds 95°F (35°C) for
H1000XX and 104°F (40°C) for
H400-H750XX.
Alarm issued when water
temperature within the UV
chamber exceeds 113°F (45°C)
–
UV Lamps are turned off (applies
to UV-H Hallett 1000W and Hallett
1000R and 1000P models)
Check if sufficient water pressure to operate purge
valve.
Check for blockage in purge discharge tubing.
Check for debris in purge valve.
System Temperature High
Warning & Alarm
The system temperature has
exceeded a safe operating level
causing the UV lamps to be turned
off.
Check if water flow has been turned off.
Check if operating temperatures have exceeded
specifications.
Check if both system blowers are operating correctly.
Circuit Board Temperature
High Alarm
The temperature within the
electrical chamber has exceeded a
safe operating level causing the UV
lamps to be turned off.
Check if operating temperatures have exceeded
specifications.
Check if the pcb blower is operating.
Wiper Not Turning Warning
The system has failed to detect
wiper motion during the routine
wiper cycle.
Check wiper motor operation
Check wiper position switch & cam.
