Why is my AC leaking water, or why is ice forming on it?
These two symptoms are connected more often than people expect — ice that forms during operation melts once you turn the unit off, and that meltwater is a common source of what looks like a separate "leaking" problem. Checking and cleaning the filter addresses the root cause behind a real share of both symptoms; if the leak or icing continues after a clean filter and a proper thaw cycle, that points to low refrigerant or a drain blockage deeper in the system, which needs a technician rather than further self-diagnosis.
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