What does error code E4 mean on the THOMSON TDW1444BWH dishwasher and how can it be resolved?

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The error code E4 on the THOMSON TDW1444BWH dishwasher indicates an overflow. This means that some parts of the appliance are leaking or that the drainage system is not properly evacuating water during the wash cycle.

If you see this error code and water is overflowing, immediately turn off the water supply before contacting a repair technician. This action is critical to avoid significant water damage.

Before contacting customer service, check the following points: ensure that the drainage hose is not bent, crushed, or blocked. The hose must be inserted into a drainage column or an appropriate drainage pipe (minimum diameter 4 cm) and must be securely fixed against the wall. The height of the drainage hose must be less than 1,000 mm. Also, check that your sink does not have a drainage issue, as a clogged sink can prevent the dishwasher from draining.

Also, clean the filter located at the bottom of the tub by removing it and rinsing it under running water to eliminate food residues or debris that may hinder proper water flow.

If after these checks the E4 code persists, it is likely that an internal part is leaking (seal, internal hose, or drain pump) or that the drainage system is blocked internally. In this case, contact FNAC DARTY customer service for professional repair, as the appliance should not be repaired by yourself. Remember that if water has accumulated in the base tray, remove it before restarting the dishwasher.

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