Operating functions.
Heat
•In this mode, the thermostat controls the heating system.
• Press the < or > buttons to set the desired temperature.
Standby
Set
Troubleshooting tips.
Problem | Solution |
No display | Check for 24 VAC at thermostat; |
| display is blank when 24 VAC is |
| not present . |
|
|
System fan does not | Verify that wiring is correct . |
come on properly |
|
|
|
Thermostat turns on and | Adjust temperature differential |
off too frequently | (see Temperature Differential, |
| Stage 1). |
|
|
Fan runs continuously | Check Fan Auto/On switch. If set to |
| ON position, fan will run continuously. |
|
|
Room temperature is | Verify that wall hole is plugged |
not correct | with putty or insulation; calibrate |
| thermostat (see Configuration mode). |
|
|
Auxiliary heat not on | Adjust differential for 2nd stage |
soon enough | (RAK148D1 only) heating, if required |
| (see Configuration mode). |
Compressor doesn’t run or turn off immediately when changing function or setting
There is a 3 minute time delay and a 3 minute minimum run time for the compressor when it turns on/off.
Fan doesn’t run or turn off | This is normal. On some models, the |
immediately when changing | fan may have a 3 minute minimum |
function or setting | run time/off time delay. |
|
|
Problem not listed above | Press the Reset button once; |
| display will be refreshed. |
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