9
Troubleshooting
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
Bacteria in outlet water
Low or no UV transmittance into the water
Replace lamp
Clean or replace quartz sleeve
Replace prefilter
Confirm the pretreatment is adequate
Confirm the feed water meets the feed water require-
ments within this manual
Biofilm in outlet plumbing
Plumbing needs to be sterilized
System not on
Confirm continuous power supply
Low power to lamp
Replace controller
Low UV intensity
Lamp over 1 year old
Replace lamp
Fouled quartz sleeve
Clean or replace quartz sleeve
Fouled prefilter
Replace prefilter
High turbidity in feed water
Confirm the pretreatment is adequate
Confirm the feed water meets the feed water require-
ments within this manual
Low power to lamp
Replace controller
White or milky colored water Air in water from new prefilter or quartz
sleeve replacement
Flow water through the system until water runs clear
Lamp out alarm ON
Filaments broken in lamp
Replace lamp
Lamp power wire not fully connected to
lamp
Ensure proper connection
Low pressure after system
Clogged prefilter
Replace prefilter
Quartz sleeve nut leaks
Quartz sleeve nut loose
Tighten quartz sleeve nut
O-ring is defective
Replace o-ring
All problem conditions called out within this troubleshooting chart require the disinfection procedure to be conducted after the
corrective action has been completed.
NOTICE
1. Shut off the isolation valves on the cartridge prefilter.
2. De-pressurize the cartridge prefilter and unscrew the
housing.
3. Install a new prefilter cartridge and pour 1 cup of 6% bleach
into the housing. If an activated carbon cartridge is part of
the prefiltration system it must be removed during the disin-
fection procedure.
4. Reinstall the filter housing and open up the prefilter isolation
valves.
5. Flush 2 reactor chamber volumes of water through the UV
system then stop and let the solution remain in the UV sys-
tem for 30 minutes.
6. After 30 minutes, flow enough water through the system to
flush all of the residual chlorine from the system. During this
time
DO NOT
exceed the rated flow rate of the UV system.
If applicable install a new activated carbon cartridge into the
prefilter housing at this time.
Disinfection Procedure
DO NOT
unplug the system.
NOTICE
