Black+Decker Humidifiers & Dehumidifiers Error Codes

E1

Dehumidifier will not run and displays E1 on the control panel

Room Temperature Sensor Failure

E2

Dehumidifier stops and displays E2 on the screen

Evaporator Coil Temperature Sensor Failure

E3

Dehumidifier beeps and shows E3, will not dehumidify

Humidity Sensor (RH Sensor) Failure

E4

Dehumidifier shuts down and displays E4 on the panel

Refrigeration System Protection / High or Low Temperature Fault

E5

Dehumidifier stops and shows E5, fan may still run

Compressor Overload / Overcurrent Protection

E6

Dehumidifier displays E6 and will not start dehumidifying

Communication Error Between Display Board and Main Control Board

E7

Dehumidifier shows E7 and stops operation

Water Level Sensor / Float Switch Error

E8

Dehumidifier displays E8 and shuts down, often after running for a short time

Fan Motor or Fan Feedback Error

EC

Dehumidifier shows EC and stops cooling/dehumidifying

Refrigerant System / Low Refrigerant or Sensor Error

F0

Dehumidifier shows F0 and does not respond to controls

Control Panel Keypad Fault

F1

Dehumidifier displays F1 and will not start

Internal EEPROM / Control Board Configuration Error

HI

Dehumidifier displays HI and may run continuously

High Ambient Temperature or Humidity Indication

LO

Dehumidifier displays LO and does not start dehumidifying

Low Ambient Temperature Protection

P1

Dehumidifier displays P1 and will not start dehumidifying

Defrost Mode / Coil Defrosting in Low Temperature

P2

Dehumidifier shows P2 and stops, bucket is full or nearly full

Bucket Full / Water Tank Full Protection

P3

Dehumidifier displays P3 and stops operation

Pump Fault (for models with built-in condensate pump)

Symptom

Continuous drain hose connected but water still fills the bucket

Continuous Drain Not Working

Symptom

Control buttons do not respond or respond intermittently

Keypad / Control Panel Failure

Symptom

Dehumidifier does not power on at all (no lights, no display)

No Power / Input Power Failure

Symptom

Dehumidifier emits a burning or electrical smell

Overheating Electrical Component

Symptom

Dehumidifier emits a musty or moldy odor during operation

Biological Growth in Water System

Symptom

Dehumidifier fan runs but there is a loud rattling or grinding noise

Fan Assembly Mechanical Noise

Symptom

Dehumidifier leaks water onto the floor instead of into the bucket

Internal Water Leak / Drainage Misalignment

Symptom

Dehumidifier makes a loud humming noise but little or no air movement

Fan Not Spinning / Stalled Fan Motor

Symptom

Dehumidifier powers on but compressor never starts, fan runs only

Compressor Not Starting

Symptom

Dehumidifier runs briefly then shuts off, bucket is not full

Short Cycling / Overheat or Protection Trip

Symptom

Dehumidifier runs but does not collect water in the bucket

No Dehumidification / Poor Moisture Removal

Symptom

Dehumidifier vibrates excessively or rattles against the floor

Excessive Vibration / Mechanical Imbalance

Symptom

Display is very dim or completely blank, but unit still runs

Display Backlight / LED Failure

Symptom

Humidifier (Black+Decker cool mist) does not produce mist even though power light is on

Ultrasonic Transducer Not Operating

Symptom

Humidifier has a white dust residue around it on furniture

Mineral Dust Emission

Symptom

Humidifier leaks water from the base onto the table or floor

External Water Leak

Symptom

Humidifier makes gurgling or bubbling noises

Normal Water Transfer Noise / Air in System

Symptom

Humidifier produces very little mist compared to normal

Reduced Mist Output

Symptom

Humidifier shuts off even though there is still water in the tank

Water Level Detection Fault (Humidifier)

Symptom

Humidifier smells musty or like mildew

Bacterial/Mold Growth in Humidifier

Symptom

Water overflows from the bucket even though the unit should shut off when full

Bucket Full Protection Failure