There are several possible reasons the pool or spa light doesn’t work.
- The bulb is burnt out and the bulb and lens gasket should be replaced.
- The ground fault circuit interrupter (GFCI) protecting the light circuit has tripped and needs to be reset.
- The light is activated with a timer or a photocell that has failed.
- The light circuit at the breaker panel has tripped and needs to be reset.