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

Common reasons your heater stops working include thermostat settings or dead batteries, a tripped breaker, a dirty air filter, or a safety lockout. Gas furnaces often fail from a dirty flame sensor or bad igniter. Heat pumps may stop due to iced outdoor coils or low refrigerant. Blocked vents or a full condensate pan can also shut systems down. We offer 24/7 emergency heating repair and same-day service in Charleston and nearby.

Quick checks:

  • Set thermostat to Heat and raise the setpoint.
  • Check the breaker and furnace switch.
  • Replace a dirty air filter.

Updated: 2025-12-18 00:00:00


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