What is AskMyHVACGuy?
AskMyHVACGuy is a free AI assistant for heating, ventilation, and air conditioning questions — from simple filter changes to diagnosing why your AC is not cooling.
Everything you need to know about using AskMyHVACGuy for AC diagnosis, filter selection, thermostat setup, and knowing when a licensed HVAC technician is required.
Free to use — no account, no signup, no cost
AskMyHVACGuy is a free AI assistant for heating, ventilation, and air conditioning questions — from simple filter changes to diagnosing why your AC is not cooling.
Yes. Describe the symptoms — not cooling, freezing up, making noise, leaking water — and the AI walks you through diagnosis and next steps.
Tell it your system model and the AI recommends the correct filter size and MERV rating for your needs, with links to buy.
AskMyHVACGuy tells you when symptoms indicate refrigerant issues, electrical problems, or other work that requires a licensed HVAC technician.
Yes. It guides you through programming any smart or programmable thermostat to maximize comfort and efficiency.
Yes, completely free with no signup required.
No forms. No subscriptions. No waiting. Describe your heating or cooling issue or snap a photo of the unit — and get a clear, honest diagnosis in seconds.
Try AskMyHVACGuy free →