What Should I Do If My Heater Is Not Working in My House?

If your home heater is not working, do a few safe checks, then schedule service if it still won’t run. The most common cause is a thermostat or power setting, with airflow problems next that make safety switches stop heat. A clogged filter can trip a furnace limit or freeze a heat pump, so heat can fail without a big warning. Our technicians handle no‑heat calls throughout the Nampa area every day. We also offer 24/7 on‑call help.

Before you call, try:

• Set the thermostat to Heat, above room temp, and replace batteries if needed.
• Verify the furnace switch and breaker are on; reset a tripped breaker once.
• Swap a dirty filter and open all supply and return vents.
• If you smell gas or see burned wiring, leave and call emergency services.

If these steps don’t restore heat, book a diagnostic so a tech can test igniters, sensors, and controls safely.

Updated: 2026-04-05

Need help in Nampa, ID? Call (208) 738-4822 or book online. “He was respectful, communicative, professional, and worked quickly to diagnose the issue.” — James W.