As soon as the pool/spa lights are turned on the GFCI breaker trips. I think I have checked everything possible and am now stumped.
The hot wire reads 120v with a multimeter.
Test #1:
1. Unhook the two wires from the output of the relay. These two wires go to the spa and pool lights.
2. Turn on the lights, the gfci is not tripped.
3. Plug up just one of the wires (either pool or spa lights)
4. Turn on the lights, gcfi is tripped
5. Swap for the other wire (either pool or spa lights)
6. Turn on the lights, gcfi is tripped
This was suspicious because it is unlikely that both the light in the spa and one of the lights in the pool leaked at the same time.
Test #2:
1. Replace the output wires from the relay (pool and spa lights) with the output wire for the blower
2. Turn on the lights, which should activate the blower
3. GCFI is tripped
This is also suspicious since the blower is working fine. At this point I think it must be the GFCI outlet.
Test #3:
1. Replace the GFCI output
2. Repeat Test #1
3. GFCI still trips
I think we now have eliminated the problem being the GFCI outlet?
Test #4:
1. Take out the relay for the lights and replace it with the relay for the blower (we know that the blower works fine)
2. Repeat Test #1
3. GFCI still trips
#Test #5:
1. Use the wire coming out of the circuit breaker for the blower, into the GFCI
2. Repeat Test #1
3. GFCI still trips
Now I've tried a different GFCI outlet, different relay, different breaker. The only thing I haven't been able to try is a different white neutral wire. They all come from the same block.
If anyone has any other ideas to try I would love to hear it.
The hot wire reads 120v with a multimeter.
Test #1:
1. Unhook the two wires from the output of the relay. These two wires go to the spa and pool lights.
2. Turn on the lights, the gfci is not tripped.
3. Plug up just one of the wires (either pool or spa lights)
4. Turn on the lights, gcfi is tripped
5. Swap for the other wire (either pool or spa lights)
6. Turn on the lights, gcfi is tripped
This was suspicious because it is unlikely that both the light in the spa and one of the lights in the pool leaked at the same time.
Test #2:
1. Replace the output wires from the relay (pool and spa lights) with the output wire for the blower
2. Turn on the lights, which should activate the blower
3. GCFI is tripped
This is also suspicious since the blower is working fine. At this point I think it must be the GFCI outlet.
Test #3:
1. Replace the GFCI output
2. Repeat Test #1
3. GFCI still trips
I think we now have eliminated the problem being the GFCI outlet?
Test #4:
1. Take out the relay for the lights and replace it with the relay for the blower (we know that the blower works fine)
2. Repeat Test #1
3. GFCI still trips
#Test #5:
1. Use the wire coming out of the circuit breaker for the blower, into the GFCI
2. Repeat Test #1
3. GFCI still trips
Now I've tried a different GFCI outlet, different relay, different breaker. The only thing I haven't been able to try is a different white neutral wire. They all come from the same block.
If anyone has any other ideas to try I would love to hear it.