Installation manual
10
Troubleshooting
PROBLEM
CAUSE
CORRECTION
1. Pressure Drop A. Sediment pre-filter clogged
B. Flow regulator
A.   Replace filter cartridge with appropriate 5 
micron cartridge.
Note: check source water supply as fluctuations 
may occur in source pressure
B. Flow regulator will result in pressure drop when 
approaching full flow.
2. High Bacteria Counts A. Quartz sleeve is stained or dirty
B. Change in feed water quality
C. Contamination in water lines after UV 
system
D. Possible break-through of sediment 
through pre-filter
A.   Clean sleeve with scale cleaner and elimi-
nate source of staining problem (ie. soften 
hard water, see page 5-6).
B. Have source water tested to ensure that 
water quality is still within allowable limits for 
this system.
C. It is imperative that effluent water stream be 
shocked with chlorine (bleach) before water 
leaves UV system - disinfection system must 
have a bacterial free distribution system to 
work effectively (see page 4).
D. Have source water tested for turbidity - may 
need stepped filtration in order to catch all 
sediment entering water system (20 micron 
filter followed by UV system).
3. Heated Product 
Water
A. Common problem caused by infre-
quent use of water
A.   Run water until it returns to ambient tempera-
ture.
4. Water Appears Milky A. Caused by air in the water lines A.   Run water until air is purged.
5. Unit Leaking Water A. Problem with o-ring seal on gland 
nuts
B. Condensation on reactor chamber 
caused by excessive humidity and 
cold water
C. Inadequate inlet/outlet port connec-
tions
A.   Ensure o-ring is in place, check for cuts or 
abrasions, clean o-ring, moisten with water/
lubricant and re-install, replace if necessary.
B. Check location of disinfection system and 
control humidity.
C. Check thread connections, reseal with 
TeflonĀ® tape and re-tighten.
6. System Shutting Down 
Intermittently
A. Interrupted power supply A.   Ensure system has been installed on its own 
circuit, as other equipment may be drawing 
power away from UV (ie. pump or fridge). 
UV system should not be installed on a circuit 
which is incorporated into a light switch.
7. Lamp Failure Alarm 
On - New Lamp
A. Loose connection between lamp 
and connector
B. Moisture buildup in connector may 
keep lamp and connector from mak-
ing a solid connection
A.   Disconnect lamp from connector and recon-
nect, ensuring that a tight fit is accomplished.
B. Eliminate chance of any moisture getting to 
the connector and/or lamp pins.










