Changing The Uv Lamp - Cal Spas Patio Owner's Manual

40

Changing the UV Lamp

CAUTION: Always turn off power to the spa at
the GFCI prior to any maintenance.
Note: Periodically you should the check the light on the transformer for the UV light
system. The transformer is mounted in the spa equipment area close to the system
control box. When it is operating normally, the light will be green. When it requires
maintenance, it will be red. This usually happens when the UV lamp needs replacing.
The UV lamp is a wearable part that needs replacing about once a year.
1 Water-proof strainer
2 Aluminum nut
3 Lamp socket and lead wire
4 Germicidal UV lamp
5 Rubber O-ring
6 Quartz thimble
7 Chamber
8 Clip
9 Ballast
See page 45 for part numbers for
replacement parts.
To remove the UV lamp
1. Disconnect power.
2. Turn water off and open down stream of system to
relieve pressure.
3. Cut the tie wrap that attaches the UV lamp chamber
to the spa frame.
4. Remove the water-proof strainer (1) and unscrew the
aluminum nut (2).
5. Pull out the lamp (4) approximately 2" from the
chamber (7).
6. While holding the lamp end, remove the lamp socket
(3) from the end now exposed.
7. Remove the lamp from the chamber.
8. Remove the O-ring (5) from the end of the quartz
thimble (6).
9. Remove the quartz thimble.
To reinstall the replacement UV lamp, follow these steps
in reverse.
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When replacement UV lamp has been installed, conduct a
final leak check:
1. Restore power to the spa at the GFCI.
2. Turn on the pump and let water run for five minutes to
check for leaks.
2017 Portable Spa
LTR20171000, Rev. C