It is an “Oh no!” moment when you approach your home’s thermostat and see its screen is blank.
Is it serious? Does it mean your furnace, heat pump, or air conditioning is broken? Not necessarily. In fact, most of the time, it is something minor and can be easily fixed.
Heat pumps are much more efficient, using up to 50 percent less energy than furnaces or baseboard heaters, according to the US DOE.
Did you accidentally stumble upon your air conditioning (AC) unit’s “winter weather” setting? Nope. You’re probably experiencing a freeze up.