No Heat on a Cold Night? What to Check Before You Call
Follow these quick steps to troubleshoot your heating system before you call for emergency service.
Check your thermostat
Ensure your thermostat is set to heat. Check the batteries if the screen is blank. Sometimes a simple setting error causes the issue.
Inspect your air filter
A dirty filter can block airflow and shut down your system. Replace the filter if it looks gray or dusty. Clean air helps your furnace run efficiently.
Look at your power source
Check your circuit breaker panel to see if a switch tripped. Ensure your furnace power switch is in the ON position. Sometimes a tripped breaker is the only problem.
Check the gas supply
Verify that your gas valve is open. If you use propane, check your tank levels. Make sure your gas utility service is active.
Common questions
Should I try to fix the furnace myself?
Do not open the furnace cabinet or touch electrical wires. Stick to the thermostat and the air filter. Contact a professional for internal repairs.
When should I call for emergency service?
Call us if you smell gas or see smoke. Contact us if the basic checks do not restore heat. We serve Loudoun and Fairfax County.
Have a question about your system? Just call.
Call for same-day service or send a request for an honest, no-pressure quote.