- Check the difference between the device setting and the actual temperature.
- Does the unit show “heat” setting when it’s supposed to be “cool” (or vice versa)?
- See if the display is faded, irregular or flashing.
- Dust and dirt build up in and out of the thermostat.
- Too hot or too cold indoor temperature.
- Set the temperature five degrees higher or lower and see if the home temperature changes. It will determine if the system receives the right command from the thermostat.
- When was the last time you replaced the batteries? Sometimes the performance of your thermostat is compromised with old and drained batteries. Be gentle in the replacing process especially in removing the battery housing. Don’t force it off.
- You might also want to let the professional check the interior part of your thermostat. Dust and dirt can build up over time and hinder the proper operation. There are also times that wires become loose. If you lack the knowledge and skills, let the professionals do the trick and bring your device in good shape again.
- Is it an old thermostat that you are using in your home? Plan for an upgrade and switch to a programmable thermostat to ensure that your unit functions in peak performance.