Switch On, Switch Off: Troubleshooting A Stubborn Thermostat June 23, 2015 | 0 comments | 3515 viewson Home Improvement If your home isn’t being heated or cooled to your preferences, the trouble might be in the thermostat – not your HVAC unit. Incredibly small devices to wield as much control as they do. And when something goes wrong at the box, everything else is affected. In a way, it’s the brain of the whole …