We just had a new Lennox EL296 furnace installed with a Healthy Solutions Climate Air Cleaner. (model HCC 16-28).
Filter is a MERV10, x6678.
After the install we noticed that when the air conditioner is running and the blower goes up to stage 2,
It sounds like there are "crickets" coming from where the evaporator coils are.
When the tech removed the air filter from the housing while the blower was on stage 2, the noise went away.
Any suggestions or recommendations that you know of?
Please let me know.