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TROUBLE SHOOTING
If the UV bulb is not lit, then you need to investigate the power to your unit.
• Has your RCD tripped? If yes, check your wiring and reset.
• Examine the UV bulb for signs of failure, and replace if necessary.
• Is the UV bulb fitted correctly? Unscrew the end caps and ensure correct fitting as
per the instructions as described in this manual.
• Are the end caps dry? If not, allow to dry thoroughly. We recommend the use of a
hair-dryer for this.
• CUV units with multiple bulbs are electrically linked as a pair. Therefore if one
bulb fails, both bulbs will not illuminate. Substituting either bulb will identify which
bulb has failed.
• Do not mix up the bulb connectors as this will result in the bulb not illuminating.
The unit worked well when I first installed it but recently my pool has gradually
gone green again – what is wrong?
Quartz sleeve may have become dirty and requires cleaning. Also make sure you have
the right model for your pool size. Ensure your pool filtration is removing waste and
debris efficiently. Dirt in pools will affect the efficiency of the CUV. Check that your
pool water volume is pumping through the CUV every 4 to 8 hours.
Check chemical levels and ensure they are within industry standards.
Only after you have carried out these checks should you contact your Certikin dealer,
who will then be able to advise you further.
The unit appears to be leaking from the end fittings?
This could possibly be caused by an incorrectly fitted, damaged or overtightened
O-Ring on the quartz sleeve. Please check the quartz sleeve O-Ring, reposition it or if
necessary replace it with a new one. Follow the steps on page 12 to test.
IMPORTANT: Do not fit the bulb socket or end cap until the issue is solved.
If water enters the bulb socket it can cause irreparable damage to bulb socket and
ballast. Damage caused by improper fitting of the quartz sleeve, o-rings and locking
nuts are not covered under warranty.
Summary of Contents for Certikin CUV110N
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