Ariston Dishwasher Troubleshooting

kitchen wide shot

The Ariston LBF 51 dishwasher is freestanding and full-sized. It caters for 12 place settings and has programmes that include normal, intensive, and express wash. With a delayed wash start timer feature, and A star energy performance rating this appliance is a popular family choice.

Ariston dishwasher troubleshooting begins when your dishwasher display lights start flashing – and error codes are shown. These are designed to help an engineer find the fault. All models of dishwashers have different types of facial panels but the following codes refer specifically to Ariston LBF 51 dishwasher problems.

Dishwasher Code Data

Ariston dishwasher F01 error

This is the code for the anti-flood sensor fault. the LED lights on the dishwasher will display in the following sequence:

  • LED 1: ON
  • LED 2: OFF
  • LED 3: OFF
  • LED 4: OFF

The anti-flood sensor is a float and switch device or a unit activated by pressure. Your technician will check for leaks after testing the sensors, and any faulty components will be repaired or replaced.

Ariston dishwasher F02 error

This points to an issue with the water fill solenoid valve, impeller jug, or water chamber failure. LED lights will show:

  • LED 1: OFF
  • LED 2: ON
  • LED 3: OFF
  • LED 4: OFF

The water inlet valve fills the dishwasher with the right amount of hot water which is controlled by the timer or other electronic control. A defective inlet valve will prevent the dishwasher from operating.

The impeller jug becomes damaged or faulty you may experience problems with the sega sdishwasher filling and then draining continuously in an almost endless cycle.

The water chamber fills with water prior to it entering the dishwasher. If this part fails heat exchange may be compromised. All of these parts can be checked and repaired or replaced by your experienced appliance repairer.

Ariston dishwasher F03 error

When there’s a water drain failure or a time out pump problem this error code will be displayed as:

  • LED 1: ON
  • LED 2: ON
  • LED 3: OFF
  • LED 4: OFF

Your appliance repair technician will check for any blockages in the system or obstructions within the sink unit. The drain hose that actually drains the water may be clogged in the path which includes the sump, pump, hose and sink drain. Any necessary repairs or replacements can then be made.

Ariston dishwasher F11 error

A wash pump motor failure will lead to the signalling of F11 and the LED light sequence of:

  • LED 1: ON
  • LED 2: ON
  • LED 3: OFF
  • LED 4: ON

The motor will need to be professionally checked and if it’s faulty will need to be replaced. The motor capacity can also become defective, and sometimes the seal on the main pump can fail to cause the motor to seize.

Ariston dishwasher F15 error

When the lights on your Ariston dishwasher are displaying as below this indicates a virtual sensor error fault:

  • LED 1: ON
  • LED 2: ON
  • LED 3: ON
  • LED 4: ON

Virtual sensors are able to detect empty or full conditions of the dishwasher by monitoring the operation of the wash pump and the drain pump. By measuring the energy consumption expended by these motors the main module can identify the precise operating situation.

If the virtual sensor fails this affects the stabilising ability of the dishwasher as blocked filters or suds situations won’t be detected. You’ll need to get a qualified engineer to help you resolve any issue related to this component.

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Ariston Dishwasher Troubleshooting was last modified: June 23rd, 2020 by Mix Repairs