← All FAQs

What Are Common Reasons My Heater Is Not Working in My House?

The most common reasons a home heater stops working are thermostat issues, power loss, a clogged air filter, blocked vents, or ignition/pilot problems. Dirty flame sensors, failed blower motors, or safety shutoffs can also stop heat. In the Denver area, we offer same-day and 24/7 emergency heating service. Routine maintenance helps prevent breakdowns.

Quick checks:

  • Set thermostat to Heat and replace batteries.
  • Ensure the furnace switch and breaker are on.
  • Replace a dirty filter and clear supply/return vents.
  • If you smell gas, leave and call for help.

Updated: 2025-12-17

Need help in Idledale, CO? Call (720) 994-7055 or book online.

Sources 12

Still Have Questions?

Our experienced team is here to answer your questions and help you find the right solution.

Call nowSchedule service