System Checkup · Learn
Free HVAC System Checkup
Not sure what's wrong? Answer two quick questions and we'll point you to the likely cause, how urgent it is, and the right next step — no guessing, no pressure, and no obligation to book anything.
Tell us what your system is doing and we’ll point you to the likely cause and the right next step — no guessing, no pressure.
This is a guideline, not a diagnosis — an on-site technician confirms the actual fault. If your system is fully down right now, see Emergency & After-Hours Help.
Keep Learning
Read up on what the checkup found
Why Your AC Isn't Cooling
The safe things to check yourself first — and the signs it's time to call.
Read the guideRepair or Replace Your AC?
The honest math — the age test, the 50% rule, and the refrigerant factor.
Read the guideBrowse the FAQ
Quick answers on diagnostics, timelines, financing, permits, and honest quotes.
Read the FAQNo-Pressure Promise
Want a real person to take a look?
Whether you need a same-day diagnostic or a free second opinion on a quote you already have, a licensed MLD pro will give you the honest, repair-first answer — with zero pressure.