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Underwater Pool Lights Replace Tips
2013-06-18 08:51:47

Most local electrical codes require that swimming pool electrical work be performed by a licensed electrician. Remember that water and electricity don't mix. If you notice anything that "looks" questionable or possibly hazardous, have it checked out immediately by a licensed professional electrician.

Underwater Swimming Pool Lighting

Underwater lights have become a common, standard item in all pools. There are many manufacturers of pool light fixtures on the market, led pool lamps are now being installed, as well as fiber optic decorative lighting that can run above or below water.

Your underwater lighting should give you few problems. Most traditional pool bulbs lifespan is 1,000 hours before replacement is necessary. The underwater pool light fixture can last several decades, however, corrosive pool chemistry can weaken the underwater light fixture and the screws which hold a pool light together, and this may necessitate replacement.

The underwater light fixture is gasket sealed to prevent water from reaching the bulb behind the lens, however, water surrounds the entire fixture, keeping it cool. Do not operate the light for more than one second without it being fully submerged. A pool light requires submersion to prevent overheating.

The fixture, or Par56 led pool light, sits inside of a "bucket",  turned on its side, towards the pool, called the light niche. The Par56 pool light niche is larger than the fixture itself to allow room for several feet of cord to be coiled up behind the fixture. The excess pool light cord makes it possible to bring the fixture up on deck for service and repair. The Par56 pool light niche also provides the threaded hole that accepts the screw which holds the led pool light into place. In the back of the light niche is where the wiring conduit connects from the fixture to the junction box, located at least 3 ft back and 18" above water level. The junction box is where the wires from the pool light (load) connect with the wires from the breaker panel (line). This box should be water and child proof.

Underwater light doesn't turn on?

Check all breakers, fuses, switches and Ground Fault Circuit Interrupter (GFCI) outlets. Frequently, a GFCI outlet is wired into the UW light circuit. If the GFCI 'red button' has popped out, the power will not continue on towards the Par56 pool light. Ensure all of these switches are in the ON position. If you find that a breaker or fuse or GFCI continues to trip, and the Par56 pool light will not come on, you should call for service at this point to determine where this irregularity is originating. If all switches are on, but we have no light in the pool, we'd want to remove the fixture from the niche and inspect the bulb for continuity (Of course, we have turned all switches / breakers OFF at this point). Burnt Par56 pool bulbs are replaced with identical voltage bulbs of either 12V or 120V. 12V Par56 pool bulbs are usually 300 watts, while 120V Par56 pool lights are available in either 300 or 500 watts. 

If you change the Par56 pool light bulb but the light still doesn't work, use a test meter to check power at the breaker, switches and junction box. (The junction box is usually located off the deck, about a foot high (except on very old pools) near the light. A small box, about 4" x 3", with conduit pipes running up into the bottom. Many times they are behind or under  the diving board.) 

Some would say, however, that before you change a Par56 pool light bulb, you should make sure there is power all the way to the Par56 pool lamp. Because you may not have a bad Par56 pool lamp at all, but a bad connection in the junction box, a bad breaker, or tripped GFCI. 

Relamping the fixture:  Relamping is usually done in under an hour. 

Replacing the fixture: If corrosive water has eaten away at the fixture, or the cord and connections have become damaged, or if the junction box is being moved, a new fixture is in order.

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