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Honeywell RTH221B Support Question

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Question posted by erisillys on February 2nd, 2014

How To Install A Honeywell Thermostat Rth221b1021

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Related Honeywell RTH221B Manual Pages

Owner's Manual - Page 1

...prevent damage to place the system in cooling mode and another one day. If the thermostat is in heating mode). Wake Leave Return Sleep Morning temperature Daytime temperature Evening temperature ..., you do not press any button for five seconds. 1.7 Built-in compressor protection Your thermostat has a feature that the temperature is normally displayed. During the wait time, the message ...

Owner's Manual - Page 2

... and temperature display for four seconds while that the current period has been overridden. Install two fresh AAA batteries when Lo Batt (low batteries) flashes on the screen. Screen... Run button if you . settings cannot be to 37 °C). screen. Honeywell warrants this product, excluding battery, to set if the thermostat was in Heat.  Press the  or  button...