The Fix-It Playbook — HVAC Maintenance Kit, 5 Guides | 25-Page PDF | 2026 Edition

Five illustrated, step-by-step guides for the heating and cooling jobs that keep your system running and your power bill honest — dirty condenser coils, a clogged AC drain line, the furnace filter nobody changes often enough, a thermostat swap (including the C-wire problem nobody warns you about), and the indoor evaporator coil.

Every guide includes a tools-and-parts list, clear diagrams for each step, the common mistakes that turn a 20-minute job into a service call, and an honest cost comparison so you know what an HVAC tech would charge before you pick up the phone.

What's inside: How to Clean Your AC Condenser Coils · How to Clear a Clogged AC Drain Line · How to Choose and Change Your Furnace Filter · How to Replace a Thermostat and Fix the C-Wire · How to Clean Your Indoor Evaporator Coil

25 pages, five guides, one file — $14. Bought one at a time the same five guides are $20, so the kit saves you $6.

Instant PDF download — print it for the garage or keep it on your phone at the unit. Yours to keep, no subscription.