Is your air conditioner or heat pump getting up there in age? In this guide, Peter—Master Electrician and HVAC tech at PRO Electric Plus HVAC—breaks down how long systems really last, what happens as they age, and how to tell when it's time to upgrade instead of repair.

When your AC or heat pump runs but won’t blow cold air, the cause could be anything from a clogged air filter to a failed compressor. In this homeowner’s guide, Peter from PRO Electric Plus HVAC explains all the common mechanical, electrical, refrigerant, and ductwork issues behind poor cooling performance—and when it’s time to call a pro.

As a tech, I’ve seen it all—ACs that overheat, compressors that tap out, and fans that grind to a halt right when you need them most. In this article, I walk you through the common summer breakdowns I deal with every day and share real tips homeowners can use to stay cool (and ahead of costly repairs).