Owner's Manual
Page 23
...• Make sure power switch at heating & cooling system is on. • Make sure furnace door is closed securely. • If thermostat is battery powered, make sure fresh AA alkaline batteries are set to acceptable ranges: key presses (or • Heat: 40° to... 90°F (4.5° to 32°C). Most problems can be corrected quickly and easily. not change) 21 69-2222EF-03 AInbcoausteyoouf rdnifefiwcutlhtyermostat RTH7400/RTH7500 Series If you have difficulty with your thermostat, please try the following suggestions. No response to 37°C). temperature...
...• Make sure power switch at heating & cooling system is on. • Make sure furnace door is closed securely. • If thermostat is battery powered, make sure fresh AA alkaline batteries are set to acceptable ranges: key presses (or • Heat: 40° to... 90°F (4.5° to 32°C). Most problems can be corrected quickly and easily. not change) 21 69-2222EF-03 AInbcoausteyoouf rdnifefiwcutlhtyermostat RTH7400/RTH7500 Series If you have difficulty with your thermostat, please try the following suggestions. No response to 37°C). temperature...