The Fix-It Playbook — Why Your Furnace Won't Turn On

The house is 58°F (14°C) and dropping and the furnace is silent. Before you call for emergency service, five checks — in the right order — find the cause more often than not.

Inside: Check 1: Thermostat · Check 2: Power · Check 3: Safety switches · Check 4: Filter · Check 5: Ignition · The two parts most likely to be the actual problem · The honest cost comparison · When to stop and call a pro · Troubleshooting · Printable no-heat checklist.

Doing it yourself: free, and takes 10–15 minutes if you go through the five checks in order.
Calling a pro: a standard service call runs $75–150 an hour plus parts, $140–210 an hour for emergency after-hours service. The average furnace repair, including labor and parts, runs $125–480, with a $300 national average.

6 pages of labeled diagrams, parts lists and real numbers — no filler, no 40-minute video. Temperatures and measurements in both Fahrenheit/Celsius and feet/meters, so it works wherever you are. Ends with a printable checklist.

Instant PDF download: print it for the garage or follow it on your phone with the parts in hand. Yours to keep, no subscription.

Need more than this one job? The Heat Kit bundles all 5 furnace and heating-system guides — 25 pages — for $14.