Furnace Repair in Morristown, NJ
Furnaces here run from October through May. If yours quits, tell us what it's doing and a licensed contractor who covers Morris County will get in touch.
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Eight months of heat puts real hours on your furnace
Morristown needs heat from October through May. That is eight months a year your furnace cycles on, and on winter nights that average 22°F, it runs longer and more often to keep up. Every cycle means the igniter fires and the burner lights again. Over that many months, that part wears, and a furnace that will not start on a cold morning is often telling you the igniter has finally given out.
Morris County also sees its share of rough weather, 20 winter storms and 188 damaging wind events over the last ten years. Wind can push cold air back down the flue and affect how the furnace vents. Power loss is the bigger risk. Across New Jersey, 11% of households lost power for 24 hours or more in 2024, and a gas furnace still needs electricity to run its blower and controls. Most furnaces restart on their own once power returns, but if yours does not, that is worth a call.
- 8 months
- October through May, your furnace is on duty
- 22°F
- the average winter night it heats against
- 70%
- of homes here heat with gas, so most furnaces here burn gas
- 20 winter storms
- in ten years, the nights a failure hurts most
NOAA nClimDiv, 1991–2020 normals
A new furnace would cut about $170 a year off heating for a typical Morris County home.
Estimates for a typical Morris County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, New Jersey fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed and the heat exchanger is sound.
Replacement makes sense when the heat exchanger is cracked or the furnace keeps needing parts.
New Jersey requires HVAC contractors to hold a state license.
New Jersey licenses HVAC contractors through the State Board of Examiners of Heating, Ventilating, Air Conditioning and Refrigeration Contractors. The license is issued to the contractor, not to each job, so the same license that covers an installation across town covers this furnace repair. Cities and towns in New Jersey cannot require their own separate HVAC license on top of it.
Because the state is the one testing and keeping the record here, the license is what stands behind whoever works on this furnace, with no local license layered underneath it. Most homes in Morris County heat with gas, and this is the license that covers that work across the whole state, not just this county.
Sources: New Jersey Legislature · New Jersey Division of Consumer Affairs
- Why won't my furnace turn on?
- Most often the thermostat isn't calling for heat the way you think it is, or power to the furnace has been interrupted. Check that the thermostat is set above room temperature and the furnace switch, the one that looks like a light switch near the unit, is on. A tripped breaker or a blown fuse will also stop it cold. If those check out, the igniter or a safety switch inside the furnace may have failed, and that's a job for a contractor to diagnose.
- Why is my furnace blowing cold air?
- If air is moving but it's not warm, the furnace may be running its fan without the burners lighting. A dirty filter can cause this by starving the system of airflow until it shuts the burners down as a safety measure. It can also mean the igniter or flame sensor isn't doing its job. Check the filter first since that's the one thing worth trying yourself, and if it's clean, have a contractor look at the ignition system.
- Why won't my furnace pilot light stay lit?
- A pilot light that won't stay lit is usually a sign the thermocouple has worn out. That's the small sensor that sits in the flame and tells the gas valve it's safe to keep gas flowing. When it fails, the valve shuts the gas off as soon as you let go of the button, even though the flame was burning fine. It's a cheap part but not one to guess at, since a gas valve issue misdiagnosed as a thermocouple problem leaves you with the same failure. A contractor can test which one it actually is.