Electrolux Professional Dishwasher Error Codes

Electrolux Professional Dishwasher Error Codes Electrolux Professional has a wide selection of world-class commercial kitchen equipment. Its line of commercial dishwashers clean everything plates to barware quickly and thoroughly. Both hood-type and undercounter units display alarm codes to help you identify potential issues. The following guide breaks down Electrolux Professional dishwasher error codes that could appear on the machine.

Electrolux Professional Dishwasher Error Codes Solutions

Alarm Codes That Stop the Dishwasher

Below are common error codes that display and halt your commercial dishwasher:

A 1

This code displays when the dishwashing machine wants water.

Potential causes:

  • Open water cock
  • Faulty water load solenoid valve
  • Dirty load solenoid valve filter
  • Dirty water inlet filter
  • Incorrect water feed flow (minimum 5 liters per minute)
  • Faulty tank/boiler pressure switches
  • Main board connector not in proper position

C 8

Code appears when the boiler doesn’t empty during the rinse phase.

Potential causes:

  • Clogged rinse arms
  • Faulty rinse pump
  • Water in the level sensor tube
  • Scale in the boiler
  • Faulty boil level sensor

Other causes for machines with continuous water softener:

  • Faulty boiler level sensor inside the water softener
  • Faulty boiler level sensor float inside the water softener (doesn’t move freely up or down)
  • Poor connection from boiler lever sensor to main board

C 9

This displays when the automatic hood is out of order. Contact an authorized service technician to diagnose and remedy the issue.

Alarm Codes That Don’t Stop the Dishwasher

Below are common error codes that display but don’t halt your commercial dishwasher:

b 1

Code appears if the drain isn’t efficient.

Potential Causes:

  • Removed overflow
  • Blocked water drain or drain pump
  • Dirty air trap and tank pressure switch
  • Blockage in the drain tube
  • Narrow or clogged pump breather pipe
  • Faulty tank pressure switch
  • Hole in the drain tube (only for models with a drain pump)

b 2

Alarm code displays if there is an overflow.

Potential causes:

  • Blocked water drain
  • Dirty air trap and tank pressure switch
  • Faulty tank pressure switch
  • Blocked load solenoid valve
  • Stuck load solenoid valve relay

C 1

The code appears if the boiler temperature rises too fast.

Potential causes:

  • Faulty boiler level sensor
  • Empty boiler
  • Non-OEM power resistances installed

C 2

Alarm code appears if the boiler temperature is too high.

Potential causes:

  • Boiler temperature has been set too high
  • Modified software alarm value
  • Faulty boiler level sensor
  • Stuck boiler relay

C 3

This code displays if the tank temperature is too high.

Potential causes:

  • Water feed is above 140 degrees Fahrenheit (60 degrees Celsius)
  • Modified software alarm value
  • Rinse water temperature is too high
  • Stuck tank relay

C 4 & C 5

Both codes display if the tank temperature sensor is out of order.

Potential causes:

  • Faulty or disconnected temperature sensor
  • Incorrectly inserted temperature sensor connector (C 4 code only)

C 6 & C 7

Both error codes display if the boiler temperature sensor is out of order.

Potential causes:

  • Faulty or disconnected temperature sensor
  • Incorrectly inserted temperature sensor connector (C 6 code only)

C 10 & C 11

Both alarm codes display if the rinse temperature sensor is out of order. These only appear on units with temperatures sensors on the rinse circuits.

Potential causes:

  • Faulty or disconnected temperature sensor (C 10 code only)
  • Incorrectly inserted temperature sensor connector (C 10 code only)
  • Short-circuited temperature sensor (C 11 code only)

E 1

This code appears if there is a communication error.

Potential causes:

  • Incorrect connection between main board and control panel
  • Dirty connector contacts

E 2

The alarm code displays if the tank temperature is low.

Potential causes:

  • Faulty tank heating element
  • Incorrectly connected connectors
  • Incorrect feed voltage and current
  • Faulty or disconnected relay on the board

E 3

Display code shows if the boiler temperature is low.

Potential causes:

  • Faulty tank heating element(s)
  • Incorrectly connected connectors
  • Faulty remote control switch connected to the heating element
  • No power at the remote control switch input terminals
  • Faulty relay on the board

Alarm Codes That Don’t Stop a Continuous-Water-Softener Dishwasher

Below are alarm codes that only appear on Electrolux Professional dishwashers with continuous water softeners:

F 21

This appears if there are water softener operation errors. Try to reset the machine by switching it off and on from the mains switch. If error code still shows, contact an authorized technician to access additional fault codes and remedy the issue.

F 22

The error code displays if there are communication errors between the motherboard and softener board. Have an authorized technician to resolve the issue.

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