What does pf mean when its flashing ,dehumidifier dec 180e whont do anything now apart from flash pf?

if the red light is flashing this means theres a fault , most common fault on these are water catch bucket is full or not seated back correctly

cont button just means continuous run mode . the power light is lit , the full light is out . try reseating the water catch bucket a few times , most machines have a safety that wont allow the thing to operate if bucket isn't just perfect in its slot (you don't want water on your floor )

sounds to me that you need a new pump in there, or it's the motor.

Probe fault? Temperature sensing probe may have loose connection or water in the tip.

Your model Delonghi Dehumidifier has been retired. Therefore, no online manual is available. However, if you contact Delonghi Customer Support (1-800-322-3848), they can furnish one and answer the question about the PF error code at the same time.

Thanks for choosing FixYa.

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Try to replace or clean the filter

I have a LG model LHD65EBL that first started icing up along the top edge during humid days. After several months of this, it finally stopped working and displayed CH01 with the bucket full indicator flashing.

I took apart the dehumidifier, removed the temperature sensor from the coil and rubbed it between my fingers. I then plugged in the unit and it started right up, confirming either a sensor or other circuit problem related to that sensor. For my model unit, I ordered sensor assembly #6877A30013L from RepairClinic.com for $21.75 + shipping.

When I received the assembly, I measured the new and old sensor with an ohm meter: new sensor = 5.5KOhms, old, defective sensor = 5.34KOhms. I installed the new sensor assembly and the unit is working fine.

Just because the bucket full indicator is flashing along with an error code does not mean there is a problem with the bucket full switch.