Panasonic Dishwashers Error Codes

H01

Dishwasher does not start and displays H01 (or H1) on the panel

Water Supply Timeout / No Water Inlet

H02

Dishwasher stops mid-cycle and displays H02 (or H2), dishes remain dirty and dry

Insufficient Water Level / Fill Error During Wash

H03

Dishwasher displays H03 and will not proceed, water remains in tub

Drain Timeout / Drain Pump Fault

H04

Dishwasher shows H04 and stops, often early in the cycle

Heater Circuit Fault / No Water Heating

H05

Dishwasher displays H05 and may stop with water in the tub or not start at all

Temperature Sensor (NTC) Error

H06

Dishwasher shows H06 and does not complete the wash cycle

Circulation Pump Motor Fault

H07

Dishwasher displays H07 and may stop shortly after starting

Water Level / Overflow Sensor Error

H09

Dishwasher shows H09 and will not start or stops unexpectedly

Control Board Communication / Internal PCB Error

H11

Dishwasher displays H11 and does not start the wash cycle

Door Lock / Door Switch Error

H12

Dishwasher shows H12 and may not respond to button presses

User Interface / Control Panel Communication Error

H20

Dishwasher displays H20 and will not start or stops during filling

Water Supply Error / Low Inlet Pressure

H21

Dishwasher shows H21 and stops with water in the tub

Drainage System Blockage Detected

H25

Dishwasher displays H25 and does not heat water properly

Heater Overheat / Dry-Fire Protection Triggered

H27

Dishwasher shows H27 and may stop during drying phase

Fan or Drying System Fault

H30

Dishwasher displays H30 and will not start, often accompanied by pump running continuously

Leakage Detected / Anti-Flood System Activated

H32

Dishwasher shows H32 and may not complete cycle, sometimes with poor wash results

Spray Arm / Water Distribution Error

H35

Dishwasher displays H35 and stops, often with water remaining

Circulation Pressure / Flow Error

H41

Dishwasher shows H41 and may not start or may stop randomly

Power Supply / Voltage Error

H50

Dishwasher displays H50 and will not start cycle

Motor Drive Error / Circulation Motor Control Fault

U01

Dishwasher displays U01 and will not start selected program

Improper Door Closure / User Operation Error

U02

Dishwasher shows U02 and beeps, cycle does not start

Rinse Aid / Detergent Dispenser Issue (User Alert)

U03

Dishwasher displays U03 and will not start, often after a power interruption

Program Setting / Memory Error (User Reset Required)

U10

Dishwasher shows U10 and beeps, often at the end of cycle with poor drying

Rinse Aid Low / Drying Performance Warning

U11

Dishwasher displays U11 and will not complete cycle, water remains at bottom

Drain Error (User-Level Alert)

U12

Dishwasher shows U12 and beeps when trying to start

Door Open During Operation / Door Not Properly Closed

U13

Dishwasher displays U13 and may stop, often with heavy load or tall items

Improper Loading / Spray Arm Interference

U14

Dishwasher shows U14 and does not start washing, often after filling

Insufficient Water Supply / Low Water Level

U18

Dishwasher displays U18 and beeps near the end of cycle, dishes may be wet

Drainage Delay / Slow Drain Warning

Symptom

Condensation or steam escaping from top of door, moisture on surrounding cabinets

Door Vent / Seal Issue

Symptom

Detergent tablet remains undissolved in dispenser after cycle

Detergent Dispenser / Water Distribution Issue

Symptom

Dishes are not getting clean, food remains on plates and glasses

Poor Wash Performance

Symptom

Dishes come out wet or with poor drying performance

Poor Drying / Condensation Issue

Symptom

Dishwasher does not drain at end of cycle, standing water in bottom

Poor or No Drainage

Symptom

Dishwasher door drops down quickly or will not stay in intermediate positions

Door Spring / Cable Failure

Symptom

Dishwasher fills with water but does not wash, spray arms do not move

Circulation Pump Not Running

Symptom

Dishwasher leaks water from the bottom front of the door

Door Seal / Spray Pattern Leak

Symptom

Dishwasher leaks water onto the floor from underneath

Internal Leak / Hose or Sump Seal Failure

Symptom

Dishwasher makes high-pitched squealing or whining noise

Worn Pump Bearings or Motor

Symptom

Dishwasher makes loud grinding or rattling noise during wash

Foreign Object in Pump or Spray Arm Interference

Symptom

Dishwasher powers on but will not start cycle when Start is pressed

Start Inhibit / Door or Control Logic Fault

Symptom

Dishwasher runs for an unusually long time or seems stuck on one stage

Extended Cycle Duration / Sensor or Heating Issue

Symptom

Dishwasher vibrates excessively or moves during operation

Excessive Vibration / Installation Issue

Symptom

Dishwasher will not power on at all, no lights or display

No Mains Power / Dead Control

Symptom

Rust spots appearing on cutlery or inside the tub

Corrosion / Material Degradation

Symptom

Unpleasant smell coming from dishwasher interior

Odor / Bacterial Growth

Symptom

White film or cloudy residue on dishes and glassware

Limescale / Detergent Residue