Any suggestions to prevent the cold air from coming thru the unit itself & around the unit? We have already used insulation around & below the unit, however the cold air is still coming thru the unit. Therefore the heat is continuously coming on & staying on throughout the night.
Is the baffle switch (it's on the left side of my zoneline3100 pushed down or up to close off the cold air? It feels about the same (cold air emitting) whether it's up or down. btw, does it interfere with operation to put insulation on bottom of unit where the cold air is coming from?.
There is a baffle/damper that allows outside fresh air to flow through the unit. This is only supposed to be open in cooling mode when the outside temp is moderate, or whenever you want just fresh air and fan operation.
Find the lever that controlls the baffle.
Some units have a switch in the control panel for this.
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