Troubleshooting Tips (Continued)
If . . . | Then . . . |
|
|
ait" is displayed | Compressor minimum−off timer is activated. |
on the screen. | Wait up to five minutes for the compressor |
| to turn on. |
|
|
Fan does not turn on | Check Installer Set−Up 0180: Fan Control in |
in a call for heat | Heating*. Make sure Electric Heat option is |
(electric furnaces | selected. |
only) |
|
|
|
Both heating and | Check Installer Set−Up Number 170: Heating |
cooling systems are | and/or Cooling Type*. Make sure the setting |
operating at the | matches the installed heating and/or cooling |
same time. | system. |
| Check to ensure that bare portions of wires |
| are not touching. |
|
|
Heating is running in | Check Installer Set−Up Number 170: Heating |
Cool mode. | and/or Cooling Type*. Make sure the setting |
| matches the installed heating and/or cooling |
| system. |
|
|
Heating system | Check Installer Set−Up Number 170: Heating |
does not turn off and | and/or Cooling Type*. Make sure the setting |
the heat tempera- | matches the installed heating and/or cooling |
ture setting is set | system. |
below the room tem- |
|
perature ("Heat On" |
|
is not shown in dis- |
|
play.) |
|
|
|
Red LED is lit in the | A system monitor is wired to the thermostat |
upper right corner of | L terminal. Refer to suggestions given in |
the thermostat when | Heating or Cooling System Does Not Turn |
the system monitor | On sections in this table. |
detects a possible |
|
problem. |
|
|
|
*Refer to Installation Instructions for access to Installer Set−Up pro- cedures.
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