No Heat in Your Long Island Home: What to Check and When to Call
Last updated Reviewed by Waseem Shahzad, Lead Technician
A house with no heat can drop fast on a Long Island winter night, and frozen pipes follow. Most no-heat calls come down to a handful of causes, and a few are safe to check yourself. If anything below sounds unsafe, skip the checks and call (631) 414-7141. K2 answers 24/7 from Deer Park.
Call 24/7: (631) 414-7141Smell gas or hear a carbon monoxide alarm? Leave the house first, then call 911 or the gas utility from outside.
What usually causes a no-heat call?
On a furnace it is usually a failed igniter, a dirty flame sensor, an inducer motor or a control board fault. On a boiler it is often a burner lockout, a circulator pump that stopped, or a low-water cutoff. Thermostat settings, a tripped switch and a clogged filter cause the rest.
- Furnace: igniter, flame sensor, inducer motor, pressure switch or control board.
- Boiler: burner lockout, circulator pump, low-water cutoff or a pressure problem.
- Heat pump: a defrost problem, a failed capacitor or a thermostat set to the wrong mode.
- Oil systems: an empty tank or a clogged oil filter or nozzle.
What can you safely check before calling?
Check the thermostat first, then power to the system, then the filter. These take a few minutes and solve a surprising number of calls. Do not open burner compartments, press the reset button more than once, or take panels off. If none of these brings the heat back, call us.
- Thermostat: set to Heat, set a few degrees above room temperature, and fresh batteries if it has them.
- Power: the service switch near the furnace or boiler (it looks like a light switch) is on, and the breaker has not tripped.
- Filter: a clogged furnace filter can shut the burner off on its high-limit switch. Replace it if it is gray and matted.
- Fuel: on oil heat, check the tank gauge. On gas, check that other gas appliances work.
- Reset once: an oil burner or boiler may have a red reset button. Press it once only. Repeated resets can flood the chamber with oil.
When should you stop and call right away?
If you smell gas or a carbon monoxide alarm goes off, leave the house first and call 911 or the gas utility from outside. Do not touch switches or the thermostat on the way out. Call us right away for burning smells, soot, a boom on ignition, or a freezing forecast with no heat.
- Gas smell or CO alarm: get everyone out, then call 911 or National Grid from outside.
- Soot, a puff-back or a boom when the burner lights.
- Burning or electrical smells, or a breaker that trips again.
- Water on the floor around a boiler, or a pressure gauge in the red.
- Vulnerable people at home with no heat: elderly residents, infants or anyone medically vulnerable. Tell us when you call.
What does K2 do when we arrive?
The technician makes the system safe first, then finds the cause and tells you the price before any repair starts. Most common failures are fixed on the first visit with parts from the van. If a part has to be ordered, we tell you and, where it is safe, get some heat going meanwhile.
When you call, you speak to a person. We ask what the system is doing, any error code and what you have already checked, then give you a time window and tell you if it changes. We do not promise arrival times in minutes, because the first cold night of the season is busy for every heating company on Long Island. No-heat calls and households with vulnerable residents get priority.
Questions people ask
Should I keep pressing the reset button on my oil burner?
No. Press it once. If the burner does not stay lit, leave it off and call. Each reset sprays oil into the chamber, and repeated resets can cause a puff-back that spreads soot through the house.
How do I keep pipes from freezing while I wait?
Open cabinet doors under sinks on outside walls, let a faucet drip, and keep interior doors open so warm air moves. Use space heaters only with care: keep them clear of anything that can burn and plug them straight into the wall.
Do you charge more at night?
Ask about after-hours and holiday rates when you call, so there are no surprises. Either way, you hear the cause and the price before any repair begins.
Need help now?
K2 answers 24/7 for homes within 15 miles of our shop at 60 S 2nd St, Unit V, Deer Park. You get a time window and the price before any repair.
Call 24/7: (631) 414-7141