The heat is on: keep it working

Winter is no time for a heater to suddenly conk out, so knowing the steps to take before calling a professional — and waiting for hours or days for a response — can get the warm air back on quickly and safely.

“If a heater is not working, check the circuit box first — a blown fuse could be the culprit. If that checks out, look at the thermostat to see if it has been lowered or turned off; adjust it if necessary. Next, check the heating system’s emergency switch, and turn it on if needed. If you have a gas system, check the pilot light.

“An oil-burning system may be out of fuel. Check the tank level (many homeowners and professionals keep a long stick, marked in feet and inches, near the tank; dip the stick into the tank until it hits bottom and check how high the stick is coated).

“If the fuel level is fine, press the system’s safety relay button once. If the heat doesn’t come on, reset the burner motor (press the switch located near the motor).

“If your home uses a hot water or steam (radiator) system, try releasing trapped air from each radiator by opening the air vent — if there is one — with a screwdriver and keeping open until water shoots out (careful, it’s hot). If using a steam boiler system, check the water-level gauge. If the water level is too low, turn the water supply valve until the gauge rises to the correct level.

These steps can correct a heating problem; if they don’t, you can relay the steps you took to the heating repair professional when scheduling a visit.

“Always stay safe when checking the heating unit. If you smell a strong odor of gas in the area, get everyone out of the house and call the fire department immediately.

“If standing water is next to an electrical circuit, don’t play around with the circuits — call a heating professional or an electrician if necessary, and drain the water from the area if possible.