What to Do When Your Heat Stops Working: A Step-by-Step Guide

Losing heat in the middle of a New Jersey winter is stressful. But before you panic, there are a few things you can check yourself that might get your system running again — or at least help the technician diagnose the problem faster when they arrive.

First, check your thermostat. It sounds obvious, but make sure it’s set to heat mode and that the temperature is set above what the room currently reads. If it runs on batteries, try replacing them. A dead thermostat battery is a surprisingly common cause of a heating system that appears dead.

Next, check your circuit breaker. Heating systems can trip a breaker, especially after a power surge. If a breaker is tripped, reset it once — but if it trips again, don’t keep resetting it. That’s a sign of an electrical issue that needs professional attention.

For gas systems, check that the pilot light is lit or that the gas supply hasn’t been accidentally shut off. Look for the gas shutoff valve near the unit and make sure it’s in the open position. Also check your air filter — a severely clogged filter can cause the system to overheat and shut down as a safety measure.

If none of those steps restore heat, it’s time to call a professional. When you do, be ready to describe what happened: when it stopped, any sounds or smells you noticed, and what the thermostat is reading. That information helps the technician prepare before they even arrive.

For emergency heating repairs across Passaic County, mstechnicians.com is available for same-day service calls. Providing clear details when you call helps them bring the right parts and get your heat back on faster.