lotstodo
aka "The Jackal"
@Guard Dad this is for you
Not likely, because it would still go into hot gas defrost cycle.Would low coolant do that? Like when an A/C unit ices up? Just curious.
Mine is a high efficiency Lennox. When it hits the defrost cycle it slows the air handler. It also sounds like a freight train outside. This is odd to me because it's normally super quiet.Not likely, because it would still go into hot gas defrost cycle.
A heat pump will build some frost on the coil when it's pretty cold out. The control board will try to initiate a defrost cycle on a timed basis if the coil sensor does not terminate it. What it essentially does is to switch the reversing valve back to normal A/C mode for a short time so the hot discharge gas will flow through the outside coil and melt any frost.
Yep, when that vale reverses you get a major "woosh" outside. But when that hot gas flows through the coil, the ice melts in seconds.Mine is a high efficiency Lennox. When it hits the defrost cycle it slows the air handler. It also sounds like a freight train outside. This is odd to me because it's normally super quiet.
NerdAs long as your controller didn't get a Blue Screen,,, try rebooting it.
Yeah it doesn't stay on defrost long. We had some ice fog the other morning and it did cycle a good bit. I wonder if that puts strain on the system? I thought about switching it over the the strips for a while.Yep, when that vale reverses you get a major "woosh" outside. But when that hot gas flows through the coil, the ice melts in seconds.
Many systems try to initiate a defrost cycle every 90 minutes unless the coil sensor cancels it. The compressor is more loaded during defrost cycle, but it is a necessary function.Yeah it doesn't stay on defrost long. We had some ice fog the other morning and it did cycle a good bit. I wonder if that puts strain on the system? I thought about switching it over the the strips for a while.