Do you hear that? Your air handler is telling you something...

[Pascal]

For the third time in two weeks, I ve had an air con whisper to me ... "sssshhhhh"

Each time they were still cooling but upon checking didnt have enough water flow either due to a strainer filled faster than normal, blockage in a dischrge line or like tonight blockage in the coil

So next time you hear a swooshing sound... Check the water flow! It s a warming of a soon to come dreaded HPF error!