In some circles some electricians and homeowners will also refer to these outlets as just a GFI.
Landscape lighting transformer tripping. Oh recently I switched out the halogen bulbs to LED bulbs Im no sure if that would affect anything though. Landscape Lighting Transformer Maintenance. Previously it had no issues with gfci tripping.
I have a toroidal 1200W multitap landscape transformer servicing 5 circuits of approximately fifty 3-5W LED fixtures. The transformer is connected to probably 10 landscape lights. Check to make sure the toggle switch is in the correct position or see if.
Most cases it is reason one and how you can prevent the ground fault is one. Home What causes the breaker to trip on a low-voltage landscape lighting transformer. My transformer keeps tripping its internal breaker when my lights come on.
For more than five years our landscape lighting has been working perfectly fine off of a 500 WATT transformer with 12V providing power to four sections. If a circuit break occurs immediately disconnect the transformer from the power source. Use a high grade model such as the Hubbell GF5252I.
And 90-percent of the time the loss of power is due to a tripped Ground Fault Circuit Interrupter or GFCI. If this is the case then it may be best to contact your outdoor lighting professional to find out what can be done. Now whenever the lights come on they will stay on for a little while than the transformer will trip its circuit breaker.
If one amp goes out the narrow prong one amp must come back in the wide prong or the GFCI will trip. I have checked the connection of the lighting wire to the transformer and its in excellent condition. The breaker often trips when the circuit is activated with either timer light sensor or even manually It may work several times or just once.

