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

Most heater failures come from thermostat settings, a clogged filter, a tripped breaker, or ignition/flame sensor issues. Other causes include a failed igniter, bad run capacitor, blocked vents, low refrigerant on heat pumps, or a faulty pressure switch. Diamond Heating and Cooling offers 24/7 emergency heating repair in Boise and the Treasure Valley.

Quick checks:

• Confirm thermostat is on Heat and set above room temp.
• Replace or clean the filter.
• Check the furnace switch and breaker.
• Clear supply vents and the outdoor unit.

Updated: 2025-12-19 00:00:00

Need help in Nampa, ID? Call (208) 378-6624 or book online.

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