It is crucial to have an accurate thermostat to ensure a comfortable and energy-efficient home environment. Whether you have a smart thermostat or a mechanical one, proper calibration is essential. Here, we will help you to check and calibrate your thermostat effectively. By following these instructions, you can optimize your HVAC system’s performance, and maintain the ideal temperature in your home throughout the year.
How to check the thermostat calibration
Before calibrating, it is important to make sure that your thermostat is measuring the temperature accurately. You will need a thermometer to compare the temperature reading with the temperature on the thermostat. Here’s how to do it:
- Switch off the heating and cooling systems to prevent temperature fluctuations.
- Place the thermometer next to the thermostat. Make sure they are on the same level and away from direct sunlight or air currents that could affect the reading.
- Allow at least 15 minutes for the thermometer to adjust to the room temperature.
- Compare the thermometer reading with the temperature on the thermostat. The thermostat may need to be calibrated if the readings differ by more than two degrees.
How to calibrate a smart thermostat
Smart thermostats are more energy-efficient and accurate than mechanical ones. They can lose their calibration with time or because of software errors. To calibrate your smart thermostat, follow these steps:
- Read the user manual of your thermostat to see if it has a calibration function. Follow the manufacturer’s instructions to calibrate the thermostat.
- If your thermostat does not have a calibration function, you can reset it to the factory settings. This will often fix any calibration issues.
- If you are still experiencing problems or your thermostat is still showing an inaccurate temperature, contact the manufacturer or an HVAC technician.
How to calibrate a mechanical thermostat
Mechanical thermostats, such as the older mercury-based models, can lose their calibration over time due to wear and tear or dust buildup. Follow these steps to calibrate a mechanical thermostat:
- Remove the thermostat cover to reveal the internal mechanism.
- Locate the calibration screw or adjusting lever, which is usually found near the temperature-sensing coil or bimetallic tape. If you don’t know where it is, refer to the thermostat’s instruction manual.
- Using a small screwdriver, gently turn the calibration screw or move the adjustment lever until the thermostat temperature reading matches the thermometer reading. Make minor adjustments and allow the thermostat time to adjust to the new settings before checking the temperature again.
- When the thermostat reading matches the thermometer reading, replace the cover and check the heating or cooling system to ensure it is functioning properly.
Regular thermostat calibration and inspection helps keep your home’s heating and cooling systems running efficiently and you comfortable. Superior HVAC Service can help you if you need your thermostat calibrated or if you continue to experience problems.
