The answer to 'landscape lighting dead trees' is that there are several common causes, including power issues, damaged wiring, and improper installation. Symptoms may include lights not turning on, flickering, or only some lights working. Solutions can range from simple troubleshooting to more complex repairs, and in some cases, it's best to call a professional landscaping technician.
For power issues, check the circuit breaker or GFCI outlet to ensure the lighting is getting power. Inspect the wiring for any damage or loose connections. Improper installation, such as burying wires too shallow or not using the right type of lighting for the application, can also cause problems. Replacing damaged components or upgrading the system may be necessary in some cases.