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

If your home heater is not working, start with safe homeowner checks, then call a licensed HVAC technician if heat still will not come on. Most no-heat issues come from power or thermostat settings, not a failed furnace. Many systems also shut down to protect themselves when airflow is blocked or a safety switch trips. When you need a pro, we provide 24/7 emergency response and same-day service when you call before noon for homes in the Bothell area. A technician can confirm whether a targeted repair restores heat or if replacement is the better decision.

Try these safe steps before scheduling service:

• Set the thermostat to Heat, a few degrees above room temp, and replace batteries if it has them.
• Check the furnace/heat pump switch and the breaker; reset a tripped breaker once.
• Replace a clogged furnace filter to restore airflow.
• Make sure outdoor intake/exhaust and indoor vents are not blocked by debris or snow. If these checks don’t fix it, book a diagnostic so a tech can test ignition, sensors, and airflow safely. <br/>

Updated: 2026-04-04 <br/> Need help in Bothell, WA? Call (425) 616-3318 or book online.