What to Do During an HVAC Emergency in New Jersey (Before the Technician Arrives)
Heating and cooling emergencies tend to happen at the worst times: a furnace quits at midnight during a cold snap, an air conditioner fails on the hottest weekend of the year, or a carbon monoxide detector sounds while the family is asleep. What you do in the first few minutes matters for safety and sometimes for the cost of the repair.
If you smell gas
Do not flip switches, light anything or use the phone inside. Leave the house, bring everyone with you and call your gas utility's emergency line from outside. Once the utility has made the home safe, call us to find and repair the cause, which is often a failed gas valve, a loose fitting or a cracked heat exchanger.
If a carbon monoxide alarm sounds
Get everyone and pets outside immediately and call 911. Do not go back in to open windows or check the furnace. Carbon monoxide is odorless and the symptoms, headache, dizziness and nausea, are easy to mistake for illness. After the fire department clears the house, have the heating system inspected before using it again.
No heat in freezing weather
Check the thermostat, furnace switch, breaker and filter as described in our furnace troubleshooting guide. If the furnace will not start, close off unused rooms, keep interior doors open to rooms with plumbing so pipes stay warm, open cabinet doors under sinks on exterior walls and let faucets drip slightly. Use space heaters safely, away from anything flammable and never with extension cords. Then call us. No-heat calls are prioritized 24/7.
No cooling during a heat wave
Turn the system off at the thermostat if it is iced over, making loud noises or tripping breakers, to prevent compressor damage. Close blinds, run ceiling fans, avoid using the oven and keep hydrated. Households with infants, seniors or anyone with a medical condition should treat loss of cooling as urgent; we do.
Water leaking from the system
Shut the system off. Water from an air handler is usually a clogged condensate drain; water from a boiler could be a failed relief valve, a leaking section or a plumbing issue. Place a container or towels to protect flooring and call for service.
Loud banging, grinding or screeching
Turn the equipment off. These sounds indicate a failing motor, a loose blower wheel, a broken belt or, in boilers, water hammer or kettling. Continuing to run the system can turn a small repair into a large one.
Breaker keeps tripping
Do not keep resetting it. A breaker that trips repeatedly is protecting against a short in a motor, compressor or wiring. Leave it off and call.
Frozen heat pump or air conditioner
A heat pump with light frost on the outdoor coil in winter is normal; the defrost cycle clears it. A heat pump or air conditioner encased in thick ice is not. Switch the system to emergency heat in winter or turn it off in summer, do not chip at the ice, and call for service. Heavy ice indicates a defrost control failure, low refrigerant, a failed fan or restricted airflow, all of which get worse the longer the unit runs.
Thermostat blank or unresponsive
Replace the batteries if it uses them, check that the furnace switch and breaker are on, and look for a tripped float switch on the air handler drain pan, which cuts power to the thermostat on many systems. If the display stays blank, the transformer or control board may have failed. This is usually a quick diagnosis for a technician but can leave you without heat or cooling until it is fixed.
Preventing the next emergency
Most of the emergencies we run were predictable. A spring and fall maintenance visit catches weak capacitors, dirty flame sensors, cracked heat exchangers, clogged condensate drains and low refrigerant before they fail at the worst time. Our maintenance plan members also receive priority dispatch during heat waves and cold snaps, when the schedule is tightest. If your system is more than 12 years old and has needed repairs two winters in a row, ask us for an honest replacement comparison before the next season.
Why after-hours pricing matters
Many contractors double their rates after 5 p.m., which punishes you for the timing of a failure you did not choose. Ask any company you call whether there is an emergency surcharge before you book. Heating Cooling NJ uses the same flat rates at every hour, so the decision to call at night is never a financial one.
What to tell us when you call
Describe the type of system, what it is doing, any sounds or smells, when the problem started and whether anyone has tried anything. Have the thermostat brand and the model of the equipment handy if you can. This helps the technician arrive with the right parts. Heating Cooling NJ answers 24/7 at 862-278-1141 and serves every county in New Jersey with no after-hours surcharge.
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