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

Common heater failures usually come from simple issues you can check first. Make sure the thermostat is on Heat and set above room temp. Replace a dirty filter to restore airflow. Check the furnace switch and circuit breaker. Open all supply and return vents. If you have a heat pump, icing or control faults can stop heating. If these don’t fix it, our Peru team provides 24/7 emergency diagnostics, repair, and replacement.

Quick checks:

  • Thermostat batteries and mode
  • Filter condition
  • Breaker/furnace switch
  • Vents open

Updated: 2025-12-17 00:00:00


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