AC Blowing Hot Air: What’s Wrong? 6 Common Causes & Fixes For AC Warm Air

“When I turn on my air conditioner, it starts blowing hot air.” Air conditioner blowing warm air is not all that uncommon AC problem. Unlike most fairly innocent issues, AC blowing hot air is quite alarming. Essentially, the air conditioner should be blowing cold air. That’s pretty much its main job. When AC starts blowing … Read more

R410A PT Chart: Pressure Temperature Chart For 410A Refrigerant

R410A is one of the most commonly used refrigerants. It’s patented by Honeywell, and known under several other names such as “AZ-20”, “Genetron R410A”, “Puron”, and so on. It’s the preferred freon for residential air conditioners, replacing the older R22 according to the Montreal Protocol and subsequently phasing out of R22. To properly use it, … Read more

How To Recharge A Window AC Unit? (10-Step Freon Refill)

Here’s the thing: Window air conditioners can spend their whole lifespan without recharging. Refrigerator lines are a closed system (unlike car ACs, for example); the R22 or R401A refrigerant can’t escape and doesn’t need to be replenished. So why do we wonder how to recharge a window air conditioner? It’s all had to do with … Read more