Honeywell T8131C Owner's Manual - Page 17
bAt Lo
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Cooling will not come on (Cont). The house is too warm or too cool. SYSTEM ON indicator is lit, but no heat is coming from the registers. The furnace or air conditioner On cycle is too short or too long. The current thermostat setting does not match the display temperature. bAt Lo remains on display after fresh batteries are installed. ten minutes and displays COOL, contact the Honeywell Customer Assistance at 1-800-468-1502. s Press PRESENT SETTING key to check the current temperature setting. s If desired, change the temperature setting. See page 5. s Allow time for the furnace to heat up and the fan to come on before checking for heat at the register. s Contact your heating or air conditioner contractor. If further assistance is needed, call Honeywell Customer Assistance at 1-800-468-1502. s Be aware that it is normal for the current setting and display temperature to differ occasionally. s Remove batteries. Wait one hour. Install fresh alkaline batteries. 17 69-0812-2