My lennox XP19 air to air heat pump is located outside. We had some freezing rain and the units drain holes plugged up causing ice to build up inside the unit to a depth of 12 inches. Does anyone know how to prevent this from happening in cold winter climates like Southern Ontario. This is an obvious design flaw for this unit. The unit has been installed correctly at the correct height and is level. The unit drains well as long as the drain holes are not plugged with ice.
- posted
16 years ago