Continuous Drain
Midea Portable Air Conditioner
Severity:What Does This Error Mean?
Setting up continuous drainage on a Midea portable AC eliminates P1 tank-full alerts. Attach the included drain hose to the rear drain port and route it downhill to a floor drain or sink — no pump required.
How to Fix It
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Locate the drain port at the rear of the unit
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Attach the drain hose fitting
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Route the hose to a drain destination
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Ensure the hose runs continuously downhill
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Test before leaving unattended
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Install a condensate pump for uphill drainage
Frequently Asked Questions
Midea portable AC drain hose not included — what type to buy?
Midea portable ACs use a standard 16 mm or 5/8-inch drain hose fitting. A standard garden hose or flexible vinyl drain hose of the correct diameter works. Check your model manual for the exact fitting size.
Midea portable AC continuous drain set up but still showing P1 — what is wrong?
Check the hose runs downhill continuously without any upward sections. Also confirm the hose fitting is fully seated in the drain port and not leaking water internally rather than through the hose.
Can I leave a Midea portable AC running overnight with continuous drainage?
Yes. With continuous drainage properly set up and the drain hose secured, the unit can run unattended overnight without risk of overflow.