What does P1 code on MDF1-30AE-BA5 mean? It will not run, nor will the buttons work,

SOURCE: Code on Top

I have another of their dehumidifiers, the MDF1-30AE. The first time the P1 came on, the unit stopped, because the filter needed cleaning. Recently P1 came on but the unit didn't turn off, and I had already cleaned the filter, so I phoned Midea customer service at 1-866-646-4332. The man told me P1 means it's in defrost mode and said to just leave it on and the P1 will eventually go away. It's been a while though....

SOURCE: the P1 light is on

P1 means the evaporator coils are freezing up.The P1 error is related to low airflow.This can be due to clogged or dirty filter.Take the filter out and clean it, if its dirty the dehumidifier can frost up due to the lack of air flow and will not work correctly.In some cases if the filter is too old then it has to be replaced.This should help.Thanks.Helpmech.

SOURCE: I just bought a Midea

If the hose is longer than 5 feet, that's part of the problem. The hose must slope down and straight to a floor drain. It relies on gravity to drain.

Although you just purchased it, the hose connector and inner tubing may be clogged. This is another reason water is diverted to the bucket. Turn the unit OFF & unplug it.

Using an appropriately sized, 18" long, plastic Zip Tie, carefully insert the tip of Zip Tie into the hose connector and tubing. Continue to push it in until you reach a bend in the tubing. You will need to gingerly work the Zip Tie past this bend, until it either bottoms out or you run out of usable Zip Tie. Then slowly pull the Zip Tie back out while rotating (twisting) it. This will breakup any clogs. As you reach the inserted end of the Zip Tie, be prepared, as some water may follow. Reconnect the hose, plug the unit in and turn the Master ON/OFF Switch to ON. Set the humidity extraction level to 35% or Maximum if you have a manually controlled unit. Allow the unit to run, while you the hose for water flow. It may take 5 to 10 minutes for water to appear.

NOTE: If you don't have a Zip Tie, you may use something similar ( i.e.a long pipe cleaner), but NO wire coat hangers.

Hope this helps you to troubleshoot & solves the problem. Thanks for choosing FixYa.

SOURCE: What does P1 mean

t appears to mean "defrosting." In other words, the condenser coils have gotten too cold and are icing up..


The filter is probably full, or the thermostat is faulty. Open it up and clean the filter first.