Today I came to Darlene’s Woodlands home becuase the furnace stopped working this morning. Upon arrival Darlene had explained that the furnace had started working again. This morning she found the thermostat was not working properly so she changed the batteries but could not get the thermostat back on the wall as it was before. She tinkered and found a thermostat pin was bent. She bent it back and the thermostat started working again. I tested the thermostat and is started the furnace with no issues but it does not stick to the wall properly anymore. Becuase I was already here, we decide to perform the annual family plan furnace service. Family plan furnace service: Upon tune up and inspection of the 20 year old system I tested and adjusted the gas valve, burners, gas pressure and temperature rise. Pulled and cleaned the flame sensor. Tested ignition system, inducing motor and assembly, blower motor and assembly, heat exchanger, humidifier, static pressures, tested and tightened all