Instructions / Assembly
troubleShootIng guIde:
PROBLEM POSSIBLE CAUSE SUGGESTED SOLUTION
Warm water output
Water sitting in UV reaction chamber
and heating up due to infrequent use
Run tap for a short period of time
Unit leaking water
Misaligned or cross-threaded
connections on inlet / outlet ports
Excessive water pressure
Water hammer* causing pressure spikes
Reinstall to ensure a solid connection
with ports
Install pressure regulator ahead of
system
Install a “Water Hammer” arrestor in
system
No power to UV lamp
when system is plugged
in
GFCI wall socket is tripped
Reset, following manufacturer’s
instructions provided with the outlet
Check socket with other appliances
System has power but UV
lamp is not coming on
(visible / audible alarm
activated)
Lamp not installed correctly
Lamp failure
Ensure lamp is installed correctly with
electrical tting (must be snug)
Replace UV lamp
System is vibrating
Not mounted securely
Water hammer* causing vibrations
Secure fasteners
Install a “Water Hammer” arrestor in system
Excessive heat
generated
Not being allowed sufcient space for
cooling
Operated in an excessive ambient
temperature
Water temperature is too high
Clear space for cooling (min. 6-12” / 15-
30 cm clearance around unit)
Unplug unit until temperature is within
ambient operating conditions
Ensure treatment is on cold water side
only (prior to heating of water)
11
*Water Hammer: Sudden closure of a control valve or stopping of a pump produces excessive pressure surges in a
pipeline. These pressure surges can cause signicant damage to equipment and/or appliances directly attached to
the water line. Water hammer is usually noted due to the characteristic banging sounds when valves on the line are
suddenly closed. Water hammer conditions must be immediately remedied, and damage to systems as a result of this
condition are not covered under warranty.
If you experience trouble with your system other than the symptoms described above, please visit:
Greeway Water Techologies - Guelph, ON, Canada N1K 1B2 - Niles, IL, USA 60714 1-888-592-8370
www.ghpgroupinc.com
System tested and certied by NSF
International against NSF/ANSI Standard
55 and CSA B483.1 for disinfection performance