Fall HVAC Checklist for New Jersey Homeowners
September and October are the months to prepare your heating system, before the first cold night when every HVAC company in New Jersey is booked solid. Working through this checklist takes an afternoon and prevents most winter emergencies.
Replace the filter and stock up
Install a fresh filter and buy enough to change it every one to three months through the heating season. A clogged filter is the number one cause of furnace limit trips and no-heat calls in January.
Test the heat before you need it
Switch the thermostat to Heat and raise the setpoint. The system should start within a few minutes. A brief dusty smell from the first run is normal; a persistent burning odor, repeated short cycling or no response means it is time to call for repair while schedules are still open.
Schedule a professional tune-up
A fall tune-up includes a heat exchanger inspection, carbon monoxide test, burner cleaning, ignition and safety control testing, gas pressure check and blower inspection. For boilers it includes pressure, relief valve, circulator and venting checks. This is the single most effective way to avoid a mid-winter failure and keep your manufacturer warranty valid.
Check carbon monoxide and smoke detectors
Replace batteries and test every unit. Carbon monoxide detectors have a lifespan of five to ten years; check the manufacture date and replace expired units. Install one on every level and near bedrooms.
Clear around the furnace and boiler
Keep at least three feet of clearance around heating equipment. Remove stored paint, boxes and cleaning products from the mechanical area. Make sure combustion air openings are not blocked.
Inspect the venting outside
For high-efficiency furnaces and boilers, locate the PVC intake and exhaust pipes outside and clear leaves, nests and debris. Make sure snow will not block them later. For chimney-vented equipment, look for cracked or displaced vent connectors.
Prepare the humidifier
If you have a whole-house humidifier, replace the water panel, open the damper and set the humidistat to 30 to 40 percent. Dry winter air causes static, dry skin and cracked woodwork.
Bleed radiators and check boiler pressure
Hot water baseboard and radiator systems collect air over summer. Bleed radiators starting from the top floor. Check that the boiler pressure gauge reads about 12 to 15 psi when cold. Steam systems should have the water level checked and the low-water cutoff tested.
Put the air conditioner to bed
Clear leaves from the outdoor unit and rinse the coil. Do not wrap the whole unit in plastic, which traps moisture; a breathable top cover is fine. Turn off the outdoor disconnect if you want to prevent accidental cooling calls in winter, and remember to turn it back on in spring.
Program the thermostat
Set a schedule that lowers the temperature while you sleep and when the house is empty. A few degrees of setback saves real money over a New Jersey heating season. Heat pump owners should use smaller setbacks to avoid triggering backup heat.
Check the furnace filter size and airflow
While you have the filter out, note the size printed on the frame and whether the old filter was bowed or collapsed, which indicates excessive airflow restriction. If supply registers in some rooms are closed, open them; closing registers raises static pressure on the blower and can trip the limit switch. Make sure return grilles are not blocked by furniture or rugs.
Look at the outdoor heat pump
If a heat pump is your primary heat, clear leaves, mulch and plants from around the outdoor unit and make sure it sits level. Check that nothing will drip or drain onto it and freeze in winter. Set the thermostat to a heat pump mode so the system uses backup heat only when needed.
Seal drafts and check insulation
Weatherstrip doors, seal gaps around windows and check attic insulation depth. Reducing heat loss lowers the load on the furnace or boiler and improves comfort more than any thermostat setting. A home that leaks less air also stays more humid in winter, which reduces the work your humidifier has to do.
Know where the shutoffs are
Locate the furnace or boiler power switch, the gas shutoff valve and the main water shutoff before you need them in an emergency. Make sure every adult in the house knows where they are and what to do if they smell gas or a carbon monoxide alarm sounds.
Print this list
Keep this checklist with your other home maintenance records and date each item as you complete it. If you note the filter size, the equipment model numbers and the date of your last professional service in the same place, you will have everything a technician needs if a problem develops in January.
Need help?
Heating Cooling NJ performs fall furnace, boiler and heat pump tune-ups and repairs throughout New Jersey, with maintenance plans that include spring and fall service. Call 862-278-1141 to schedule before the rush.
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