New Jersey homeowner guide

Furnace Not Heating

A practical guide to common no-heat symptoms and when to request furnace repair.

Updated 2026-08-27 • Educational content

A no-heat call can originate at the thermostat, electrical supply, ignition system, airflow system, safety controls or other furnace components. Check the thermostat mode and obvious power controls first. If the equipment is repeatedly trying and failing to start, professional diagnosis is appropriate.

What you can observe safely

  • Note exactly when the problem happens and whether it is constant or intermittent.
  • Write down the brand and model number if it is easy to access safely.
  • Take a photo of visible leaks, error codes or control displays when appropriate.
  • Avoid disassembly, live electrical work, gas work or anything that creates a safety risk.

When to stop using the equipment

Stop use and request qualified help when there is active leaking near electrical equipment, a burning smell, smoke, repeated breaker trips, suspected gas odor, flooding, sewage backup or another condition that may create property damage or a safety hazard.

Request service in New Jersey

Broad Home Services serves customers throughout New Jersey. Send your city or ZIP code, the symptoms, and the brand/model when available.

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