Pool and Spa
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The only Nautilus Spa I have worked on required a special tool to access the bulb. Here are the directions I have for that:
1. Turn the power off and drain the system below the level of the light. 2. Using the special tool provided in the owner’s manual packet, unscrew the cover for the light housing. 3. Remove the old bulb and install the new bulb. 4. Use the special tool to replace the cover for the light housing. 5. Check to ensure proper operation of the new bulb before refilling the system
Basically the lens itself unscrews from the housing. There is a large o-ring behind it that keeps water out. Please let me know if I can be of further assistance. Thanks!
Here is a link to the two piece tool you need:
Unfortunately they only ship to USA and Canada. I haven't had any luck locating the tool in Australia. The ring in the kit holds the base of the light while the other part grabs hold of the small holes in the lense so you can turn it to remove it. I'm afraid using anything other than the tool kit will crack or break the light lense or housing. If you have trouble locating the tool locally let me know and we'll see what we can do to get one to you.
This question should remain open for us to communicate. Let me know what I can do to help.
Let me look in to it and I'll get back to you as soon as possible. Thanks!
Can I get a mailing address for you, so I can get shipping costs as accurate as possible. Thanks!