Upon arrival, I first inspected the thermostat to understand the issue. The display was unresponsive, indicating a potential power or connectivity problem. I checked the wiring connections and found them secure. Next, I tested the power supply and discovered that the batteries were depleted. After replacing the batteries, the thermostat powered on, but the settings were not being saved. I then performed a factory reset and reconfigured the settings according to the homeowner's preferences. Finally, I tested the system to ensure the thermostat was functioning correctly and providing accurate temperature readings. The homeowner was pleased with the restored functionality and ease of use.
