T8611G CHRONOTHERM® IV DELUXE PROGRAMMABLE HEAT PUMP THERMOSTATS
11 69-1406—1
System on indicator
(flame=heat,
snowflake=cool) is
displayed, but no
warm or cool air is
coming from the
registers.
Heating or cooling equipment is
not operating.
Verify operation of heating or cooling equipment in self-test.
Outdoor tempera-
ture not displayeda
Option not activated. Enter Installer Setup number 24 and set to 1. Thermostat must
have OT terminals and a C7089B1000 installed.
Outdoor
temperature
display is incorrecta
Outdoor sensor is connected
incorrectly.
Refer to C7089B1000 Installation Instructions and check wiring
between the thermostat and sensor.
Wrong sensor. Replace sensor with C7089B1000 Sensor.
aSelect models.
Table 6. Troubleshooting Guide. (Continued)
Symptom Possible Cause Action