Heating
Switching From AC to Heat This Fall in Princeton, NJ
Get ready for cooler weather with safe thermostat, filter, and heating checks, plus warning signs to watch for when switching your system from AC to heat.
Fall in Princeton is a good time to test your heating system before you need it every day. A few simple checks can help you make the switch from cooling to heating safely and spot problems worth addressing before colder weather arrives.
Start With the Thermostat, Not a Big Temperature Jump
On a mild day, switch the thermostat from Cool to Off and let the equipment stop before selecting Heat. Follow any waiting period in your thermostat or equipment manual; some systems have a built-in delay to protect the compressor. Set the temperature a couple of degrees above the current room temperature to request heat. Cranking it much higher usually will not warm the house faster and may bring on supplemental electric heat if you have a heat pump. For most forced-air systems, use the Auto fan setting so the blower runs as needed. Review your fall schedule, and replace thermostat batteries if your model uses them and indicates they are low.
Check the Filter and Give Air a Clear Path
Before checking a forced-air filter, turn the system off at the thermostat and follow the equipment instructions for safe access. Replace a dirty disposable filter with the correct size and recommended type, matching its airflow arrow to the direction shown on the equipment. Do not run the system without a filter or assume a more restrictive filter is always better. Keep supply registers and return grilles clear of rugs, furniture, and curtains. If you have radiators or baseboard heat, leave space around them and keep combustible items away. Outside, remove loose leaves around accessible equipment without opening panels. Do not cover an outdoor heat pump; it needs airflow throughout the heating season.
Run a Heating Test and Know What Is Not Normal
Let the heat run long enough to confirm that rooms begin warming and airflow seems normal. Heat pump air can feel less hot than furnace air while still heating properly. A faint dusty smell may occur at the first startup, but it should fade quickly. Persistent burning odors, smoke, grinding sounds, repeated shutdowns, or a breaker that trips call for professional attention; do not keep restarting the equipment. If you smell gas, leave immediately without operating switches or using a phone inside, then contact your gas utility or 911 from a safe location. If a carbon monoxide alarm sounds, get everyone outside and call 911. Never dismiss it as a startup issue.
Handle Seasonal Safety Checks and Schedule Service
Test smoke and carbon monoxide alarms according to their instructions, and check their replacement dates. Keep the area around your furnace or boiler free of storage, especially flammable materials. From a safe ground-level position, look for obvious leaves or debris blocking accessible outdoor intake or exhaust openings; leave dismantling or difficult access to a professional. A heating tune-up can include checks of controls, electrical components, and system operation, with combustion and venting checks where applicable. If your system struggles during its test run or is due for maintenance, contact General Air Pro Heating & Cooling at (609) 248-6446. We serve Princeton and homeowners throughout Central and North New Jersey.
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