Dishwasher shows E15; may not start and may indicate a serious internal fault.

Safety first: Unplug the dishwasher before any inspection. Electronic components can retain charge.

• Power cycle: Turn off the appliance at the mains for 10–15 minutes, then restore power and try a short program.
• Inspect wiring: Remove the kick plate and side panels. Check the main wiring harness for burnt connectors, loose plugs, or obvious damage.
• Check control board housing: The control board is usually located behind the front panel or in a side housing. Look for signs of burning, moisture ingress, or corrosion.
• Surge protection: If the error followed a power cut or surge, consider using a surge protector after repair.
• Board replacement: If no external cause is found, the main control board likely needs replacement and programming with the correct Candy configuration. This should be done by an authorized service technician.