“I changed the battery. How do I turn it back on the screen is blank”
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Hi Help! The Honeywell 7-Day Programmable Thermostat doesn't use a battery for power; it is hard-wired to your system by the C, or common, wire. If your screen is blank, check the following: check your circuit breaker and reset if necessary; make sure the power switch at heating and cooling system is on; make sure furnace door is closed securely; make sure C wire is securely connected at the thermostat and your system. You'll also want to ensure you are getting proper voltage at your thermostat. Feel free to call us directly at 1-855-733-5465 and we'll be happy to help you with these troubleshooting steps, and provide additional assistance if it's needed. We hope this helps!
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