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Honeywell RTH221B Support Question

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Question posted by NadDev on July 23rd, 2014

Honeywell Rth221b Will Not Display Anything On Screen

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Related Honeywell RTH221B Manual Pages

Owner's Manual - Page 1

... °C) 75 °F (24 °C) 78 °F (25.5 °C) 69-2062EFS-01 1/8 If the thermostat is following modes. • Cool: System is in Cooling mode. • Off: System is off. • Heat...the wait time, the message Cool On flashes on the screen and the time display will appear on the screen. Low-battery warning Permanent schedule override Schedule period Clock Temporary ...

Owner's Manual - Page 2

...; Press the Set button. Replace the thermostat. Replace the thermostat. If the product is displayed. Customer Care will be defective or malfunctions, Honeywell shall repair or replace it is shorted....(ii) call 1-800-468-1502. Temperature • The System switch is displayed. Cool On is opened. screen. E1 appears on the • The temperature sensor circuit is shown by the...