In brief
After about 8.000 hours the lamp still lights but no longer produces UV-C. Replace it at the start of the season.
You need: A cloth or gloves, and the new lamp
Replacement parts
Order them first, so you can start right away.
7 steps
Caution: UV-C radiation harms eyes and skin. Never switch the lamp on outside the housing.
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Step 1: Unplug the UV-C unit and the pump.
Unplug
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Step 2: Turn the head of the UV-C unit in the direction of the arrow and lift it out of the housing with the lamp.
Unscrew
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Step 3: Pull the UV-C lamp out of its holder using a cloth or gloves.
Gloves
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Step 4: Remove the safety clip from the UV-C lamp.
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Step 5: Insert the new UV-C lamp into the fitting.
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Step 6: Put the safety clip back into position.
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Step 7: Insert the UV-C lamp into the housing and turn the head of the UV-C unit to lock it into position.
Didn't work?
Pick what you see. The most likely cause is listed first.
Water stays green 5 possible causes
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1
The lamp is worn out (after about 8,000 hours)
Replace the lamp as shown in this guide.
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2
The quartz sleeve is dirty
Clean the quartz sleeve with a soft cloth and natural vinegar, then rinse it with clean water.
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3
The flow is too high or too low
Keep the flow between 500 l/h and the maximum for your model.
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4
The pond is heavily polluted
Remove leaves and dirt from the pond and change part of the water.
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5
The unit is too small for the pond
Check your pond volume and the wattage it needs.
Lamp does not light 4 possible causes
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1
There is no power
Check the socket, the RCD and the plug.
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2
The lamp is defective
Replace the lamp as shown in this guide.
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3
The unit has overheated
Let it cool down and place it somewhere airy, out of direct sun.
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It leaks 1 possible cause
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1
An O-ring is damaged or the head is not tight
Check the O-rings and tighten the head by hand. Replace a dry or damaged O-ring.
O-ring 1 (part 9) €5,95