A customer in Mineola, TX called us early in the morning after their heat stopped working overnight. Our technician arrived to find the heat pump running in cooling mode instead of heating mode.
After investigating, we discovered the thermostat had lost all its internal settings and reverted to factory defaults. This caused the system to switch modes unexpectedly. We reprogrammed the thermostat with the correct settings, and the heat began working immediately.
While on site, our team also cleaned up some loose wiring connections and performed a complete system test. We checked the heat pump operation, emergency heat function, and defrost cycle to ensure everything was working properly.
The customer was pleased with the quick repair and decided to enroll in our maintenance program. Regular maintenance will help prevent similar issues and keep their heating system running smoothly throughout the winter months.