Yes, it is normal for an exterior AC drain pipe to drip water as it is a sign that the air conditioning unit is functioning properly and removing excess moisture from the system.
if a small amount of water is dripping it is normal condensation from running an engine
Unclog the drain.
Water dripping from the freezer into the fridge is usually caused by a clogged or frozen defrost drain. This can happen when ice builds up in the freezer and blocks the drain, causing water to overflow into the fridge.
If by "exterior overflow drain" you mean a pan external to the AC coil and ducting (often installed on a horizontal attic crawlspace unit), and if there's water filling that "exterior overflow drain," then it would be likely that the coil's own drain pan has formed a leak. If the evaporator coil is older than 10 years, it probably was made of sheet metal rather than plastic, and so it may have rusted through in a location not readily visible.
Water dripping from the evaporator coil in your air conditioning unit is a normal occurrence. This happens because the coil cools the air and removes moisture from it, causing condensation to form. The water then drips into a drain pan and is drained away from the unit.
The drain for the condenser may be clogged.
It sounds as if you are describing the air conditioniong system condensation drain hose. This is completely normal.
Your split AC may not be dripping water outside because the condensate drain line could be clogged or blocked, preventing the water from properly draining outside. It is important to check and clear the drain line to ensure proper functioning of your AC unit.
The purpose of installing exterior drain tile around a foundation is to prevent water from seeping into the foundation and causing damage. The drain tile helps to redirect water away from the foundation, keeping it dry and stable.
No, the freon is in a sealed piping system. The water dripping outside is most likely due to condensation. Plus, freon is a gas under normal atmospheric conditions.
Where is the evaporator coil located? >>>> Drain line is probably clogged
Your freezer may be dripping water into your fridge due to a clogged or frozen defrost drain. This can cause excess water to accumulate and overflow into the fridge. It is important to address this issue promptly to prevent further damage.