Electrical Question - Pool light

[Rubycon]

Use a "load" to verify socket terminals are getting actual power that can fire a 300W bulb! A DMM is a high impedance device and will show more than adequate voltage which can sag to nearly zero under load.

 

[Reel]

Use a "load" to verify socket terminals are getting actual power that can fire a 300W bulb! A DMM is a high impedance device and will show more than adequate voltage which can sag to nearly zero under load.

Can you please be more specific? I checked the voltage by the transformer while a bulb was in socket. It measured the same as it did when the bulb was not in the socket. Thanks for your help.

 

[Rubycon]

Can you please be more specific? I checked the voltage by the transformer while a bulb was in socket. It measured the same as it did when the bulb was not in the socket. Thanks for your help.

The bulb was not illuminated though, correct?

This sounds like a contact issue.

If possible wire up a medium based socket or any household lamp to the transformer and screw that bulb into that socket. The lamp should illuminate if the transformer is working properly.

 

[Reel]

The bulb was not illuminated though, correct?

This sounds like a contact issue.

If possible wire up a medium based socket or any household lamp to the transformer and screw that bulb into that socket. The lamp should illuminate if the transformer is working properly.

That is correct. It has not illuminated again since the start of this thread despite all my various manipulations of it. Thanks. I will try with a lamp.

 

[Reel]

Lit up the 12V bulb with the transformer outputs connected to the wall plug of a lamp. I assume that confirms the transformer is functioning and the bulb is functioning (and the lamp we don't care about). That leaves the problem in the connection between the transformer and the socket or the socket and the bulb. Since these are sealed units, I have to hope that by reconnecting the transformer to the socket, that re-established the connection.

 

[Reel]

Tried the bulb again in the hopes that I connected the wires again and now it was a better connection. No luck so I am left with the assessment that the pool light fixture went bad. Those things run about $200 on Amazon. Sucks 🙁 Looks like we will not have a pool light for a while. Thanks for your help.

 

[echo4747]

Tried the bulb again in the hopes that I connected the wires again and now it was a better connection. No luck so I am left with the assessment that the pool light fixture went bad. Those things run about $200 on Amazon. Sucks 🙁 Looks like we will not have a pool light for a while. Thanks for your help.

Is the fixture something you can easily remove? Once you get it out of the pool and have a close look, it may be something you can repair. It maybe something a simple as soldering a wire what may have cracked off the socket ( maybe still touching just enough when the bulb is unscrewed to register on your voltmeter... once the bulb is screwed in it loses contact.) Maybe you will get lucky an save $200.

 

[Squisher]