Uploaded December 2024 | Updated September 2026, 2 weeks ago

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If you have no heat and your thermostat has not power or a blank screen, we've got your fix. We'll show you how to troubleshoot a smart thermostat and replace the fuse on your furnace. Find the problem with your furnace and see if your thermostat has gone bad before an expensive service call to an HVAC professional.

Ecobee 3 Lite :
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