Delta UV D-80 - Troubleshooting

© 2015 Delta Ultraviolet Corporation All Rights Reserved Rev 01/16 P/N 94-35234 Page 18
H. TROUBLESHOOTING
1. The UV Bulb Will Not Light: If this occurs upon initial start-up, the problem could be caused by a
number of issues.
a. The bulb has become disconnected from the bulb connector. Disconnect the power cord
from the electrical outlet, open the electrical enclosure bonnet and confirm the bulb connector is
firmly in place. At the same time, check all exposed wires for a possible loose connection. Plug
the electrical cord back into the electrical outlet ONLY after the electrical enclosure bonnet has
been re-installed on the DELTA UV unit
b. Verify that the electrical cord is connected into an energized circuit. Test the electrical circuit.
You should confirm the availability of the same power as indicted on the electrical label on your
DELTA UV unit.
c. Make sure you have not connected your unit into any power source other than that specified on
your unit’s electrical label. If you have done so in error, the ballast has been damaged and
needs to be replaced. Contact your supplier for the correct replacement ballast. (Not warranted)
2. The UV Bulb Is No Longer Lit - This occurs after the unit has been operating successfully for a period
of time.
a. The bulb has burned out. Replace the UV bulb.
b. The ballast has burned out. Contact your supplier or Delta UV for assistance in obtaining a new
ballast.
c. Verify that the electrical outlet where the DELTA UV unit is plugged into has the proper voltage
and the cord is securely plugged into the outlet.
3. The Water Is Green - Green water is an indication that the UV rays generated by the DELTA UV unit
are not effective or are not being generated by the UV bulb.
a. Check pool chemistry for phosphates and chemical balance.
b. Check the bulb to make sure it is on. If it is not on, follow the procedures above regarding the UV
bulb not lighting.
c. Run your unit longer. If your unit is operating on a time clock, run the circulation pump longer
to allow the DELTA UV unit to function fully.
d. Clean the quartz tube.
e. Replace the UV bulb if it is nearing the 13,000 hour useful life. At 13,000 hours of operation,
the UV bulb is 80% as effective as it was when it was new. This is normal for all low-pressure
type UV bulbs, which are the longest life bulbs used in this type of application.
4. The DELTA UV Unit Makes Noise When Operating: This is an indication of the DELTA UV unit
not being properly attached to a firm mounting base of wood or concrete with the bolts placed through
the mounting holes in the DELTA UV unit base. It can also indicate that the UV bulb was installed
without the required bulb cushion and/or bulb O-Rings. Attach the DELTA UV unit correctly to a firm
base as described in Sec. D, or install the bulb cushion and/or bulb O-Rings as described in Sec. G.
5. Water Is Coming Out Of Electrical Enclosure: Water exiting the unit through the electrical enclosure
bonnet can be attributed to either (a) a bad quartz tube seal, or (b) a broken or cracked quartz tube. Check
the quartz tube seal and quartz tube as instructed in Sec. G.
6. Specifications - Due to Delta UV’s commitment to product improvement, all product descriptions or
specifications are subject to change without notice.