Invention Grant
US09273878B2 Device interface for a building appliance 有权
建筑设备的设备接口

Device interface for a building appliance
Abstract:
A smart phone or a tablet may execute an application program code to identify a diagnostic status associated with a time-coded signal emitted by a low-cost user interface of a building appliance such as a furnace or water heater and suggest a recommended action to the user. The signal emitted by the low-cost user interface may be audio or a visual signal.
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