9 Steps To Take Before Turning On Your HVAC System (Part 2)
4. Verify smoke and carbon monoxide detectors, change the batteries (if necessary)
Do not ignore the safety detectors when checking your HVAC system; make sure they are in working condition. To that end, test the smoke and carbon monoxide detectors beforehand using manufacturer guidelines. Check out the batteries used in the smoke and carbon monoxide detectors, too. Consider their replacement, if necessary.
5. Clear the space around the unit