Owner's Manual
Page 8
WAKE, MON-FRI and SET appear on the thermostat left side) using a coin at HEAT, press and release Weekday Schedule once. When replacing batteries, set the system switch to retain your personal temperature schedule in Installing Batteries section. T8131C Programming Guide NOTE: Batteries are required only for armchair programming, and to OFF. Set Current...
WAKE, MON-FRI and SET appear on the thermostat left side) using a coin at HEAT, press and release Weekday Schedule once. When replacing batteries, set the system switch to retain your personal temperature schedule in Installing Batteries section. T8131C Programming Guide NOTE: Batteries are required only for armchair programming, and to OFF. Set Current...
Owner's Manual
Page 14
... if ac power is blank, the batteries are dead or incorrectly installed and the thermostat requires reprogramming. • Install the fresh batteries, as shown, making sure positive and negative terminals are oriented correctly. • Replace the battery door. • Replace the batteries once a year to 30 seconds of the batteries. INSTALL TWO AA...
... if ac power is blank, the batteries are dead or incorrectly installed and the thermostat requires reprogramming. • Install the fresh batteries, as shown, making sure positive and negative terminals are oriented correctly. • Replace the battery door. • Replace the batteries once a year to 30 seconds of the batteries. INSTALL TWO AA...
Owner's Manual
Page 15
Display will not go lower s The temperature setting limit was reached. Temperature display will not come on the thermostat is powered properly. Heating will not come on. s Check that AM and PM indications are correct. The setting than 45°F (7°C) or higher than... light emitting diode (LED) located to the left of the LCD is lit, indicating the thermostat is set to 31°C). (31°C) during programming. Troubleshooting Guide IF... s Check the system fuse or circuit breaker and replace or reset, if necessary. 15 69-0812-2 Make sure the current day and time are...
Display will not go lower s The temperature setting limit was reached. Temperature display will not come on the thermostat is powered properly. Heating will not come on. s Check that AM and PM indications are correct. The setting than 45°F (7°C) or higher than... light emitting diode (LED) located to the left of the LCD is lit, indicating the thermostat is set to 31°C). (31°C) during programming. Troubleshooting Guide IF... s Check the system fuse or circuit breaker and replace or reset, if necessary. 15 69-0812-2 Make sure the current day and time are...
Owner's Manual
Page 16
...s Check that the green LED is lower than the current temperature and displays HEAT, contact Honeywell Customer Assistance at 1-800-468-1502. s Check the system fuse or circuit breaker and replace or reset, if necessary. s The thermostat has a built-in time delay on , the compressor could have reached its high limit ...comes on cooling. If the air conditioner does not come on (Cont). s Check that the switch on . Heating will not come on the thermostat is higher than current temperature and displays COOL, move the system switch from COOL to OFF for ten minutes.
...s Check that the green LED is lower than the current temperature and displays HEAT, contact Honeywell Customer Assistance at 1-800-468-1502. s Check the system fuse or circuit breaker and replace or reset, if necessary. s The thermostat has a built-in time delay on , the compressor could have reached its high limit ...comes on cooling. If the air conditioner does not come on (Cont). s Check that the switch on . Heating will not come on the thermostat is higher than current temperature and displays COOL, move the system switch from COOL to OFF for ten minutes.