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How do you unlock the thermostat?

HVAC
Thermostats and Accessories
Digital Thermostats
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DK Hardware 2025-05-03 – 14:10:32
Technical Team

To unlock the Emerson 1F83H-21NP thermostat, press and hold the "Menu" button for about 5 seconds until the lock icon disappears. This should unlock the keypad and allow you to adjust the settings.

Product Details

20-30vac Non-Programmable 2 Heat/1 Cool Heat Pump 45-99 Degree
1F83H-21NPEmerson 1F83H-21NP 20-30vac Non-Programmable 2 Heat/1 Cool Heat Pump 45-99 Degree
$96.03/Each

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