I was speaking to an HVAC guy the other day about my new heat pump system and he asks me what brand. I told him Carrier Infinity and he says "Oh, they've had some mold problems with that system” He goes on to say that the variable speed handler blower is located too close to the coil. In high speed it has been known to pull moisture from the coil and distribute it downstream into the ductwork creating potential mold problems. He added that Carrier had been dealing with this for some time and has "redesigned" this handler several times in an attempt to fix this issue.
I’m curious if there is any validity to this or if this guy is just blowing smoke.