The middle spray arm is blocked by crockery.
Open the dishwasher door and rearrange the items that are blocking the spray arm.
The Spray arm indicator light on the dishwasher is flashing.
Open the dishwasher door and rearrange the items that are blocking the spray arm.
Before rectifying the fault, switch the dishwasher off.
Clean the spray arm as follows:
Push on the middle spray arm (1) to engage the ratchet and then unscrew the spray arm (2).
Use a pointed object to push food particles in the spray arm nozzles towards the inside.
Rinse the spray arms thoroughly under running water.
Replace the spray arms and check that they rotate freely.