Understanding This Problem
When your furnace won't turn on, you could be facing anything from a simple thermostat issue to an electrical problem. Quick diagnosis prevents extended cold exposure.
Common Causes
Thermostat batteries dead
Tripped circuit breaker
Furnace switch turned off
Gas valve closed
Ignition failure
Safety switch triggered
Blower motor failure
What You Can Do
Replace thermostat batteries
Check circuit breaker panel
Locate and check furnace power switch
Verify gas valve is open
Reset safety switch if tripped
Prevention Tips
- Keep thermostat batteries fresh
- Know location of furnace switches
- Annual professional inspection
High Priority
This issue should be addressed promptly to avoid damage or discomfort.
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