Smeg Dishwasher: error code during cycle

Professional Repair Guide

What is this symptom?

If your Smeg dishwasher is displaying an error code during its cycle, it indicates a self-diagnosed fault. Common issues include water supply faults, drainage failures, or heating circuit problems. Identifying the specific error code can help narrow down the cause and guide you in troubleshooting or seeking professional assistance.

Urgency: Medium

Important Tips for Smeg Models

Error codes can vary by model and some models use LED flash sequences instead of alphanumeric display; consult your specific manual for accurate mapping

Possible Causes

Water inlet / water supply fault

How to Identify: Error codes like E1 or E5 indicate insufficient water filling and inlet flow problems; water not entering dishwasher as expected

Part: Inlet valve, water supply hose, mesh filter

Drainage failure

How to Identify: Error code E2/E6 (or related LED patterns shows water cannot drain; water remains in tub and machine halts midâ€‘cycle

Part: Drain hose, drain pump, filters

Overfill / flood detection

How to Identify: Error code E1/E9 can indicate overfill or flood protection triggeredâ€”excess water detection during cycle

Part: Float/pressure switch, antiâ€‘flood sensor, inlet valve

Heating circuit fault

How to Identify: Error code E3 or similar indicates water not heating, longer than normal cycles or improper wash temperatures

Part: Heating element, thermostat/NTC sensor

Temperature sensor / thermistor fault

How to Identify: Error code E4 suggests incorrect temperature readings or disconnected sensor wiring

Part: Temperature sensor/thermistor

Pressure / water level sensor malfunction

How to Identify: Codes like E2 may also indicate pressure switch malfunction if water level readings are inconsistent

Part: Pressure switch or air trap tube

Control board or internal communication error

How to Identify: Errors like E15/E8 or unexpected codes can indicate control board communication issues or sensor bus faults

Part: Control PCB / wiring harness

DIY Solutions

Check and clear water inlet hose and filter

Easy 10-20 minutes

Tools Needed: screwdriver (if needed), bucket/towel

Turn off water supply and power to dishwasher
Inspect inlet hose for kinks or damage
Remove and clean mesh filter at water inlet connection
Ensure inlet valve is unobstructed and water supply is fully open

⚠️ Safety First: Ensure power is off before accessing water connections

Clean drain filter and hose

Moderate 15-30 minutes

Tools Needed: gloves, bucket, screwdriver

Turn off power and water
Open dishwasher and remove bottom filter assembly
Clean debris from the filter and sump
Check drain hose for blockages or kinks
Reinstall components and run a short cycle

⚠️ Safety First: Be prepared for water spillage

Inspect float/pressure switch area

Moderate 15-30 minutes

Tools Needed: screwdriver, lintâ€‘free cloth

Disconnect power
Locate float or pressure switch area inside base tray
Ensure float moves freely and is clean
Check small air tube for blockages or kinks

⚠️ Safety First: Power off before access

Reset dishwasher control board

Easy 5 minutes

Turn off dishwasher power at mains or breaker
Wait 2â€“5 minutes
Restore power and try restarting cycle

⚠️ Safety First: Reset does not fix underlying hardware faults

Professional Repairs

Replace faulty inlet valve

Estimated Cost: $60 - $150

Drain pump replacement

Estimated Cost: $70 - $180

Heating element or thermostat replacement

Estimated Cost: $80 - $220

Control board service or replacement

Estimated Cost: $150 - $400

When to Call a Professional

Errors persist after DIY checks and resets

Water remains in the base despite cleaning filters and hoses

Heating errors (E3/E4) remain after sensor inspection

Error codes suggesting control board or communication faults

Preventive Maintenance

Clean filters and spray arms: Drainage and water distribution error codes
Frequency: monthly
Inspect and straighten inlet hose: Water fill related errors
Frequency: every 3â€“6 months
Check door seal and float area for debris: Overfill and flood detection issues
Frequency: quarterly

Frequently Asked Questions

Why is my Smeg Dishwasher error code during cycle?

Common causes include water supply faults, drainage failures, and heating circuit issues.

How do I fix Smeg Dishwasher error code during cycle myself?

Try checking the water inlet and drain filters, inspecting the float switch, or resetting the control board.

How much does it cost to fix error code during cycle?

Professional repairs can range from $60 for an inlet valve to $400 for control board replacement.

When should I call a technician for error code during cycle?

Consider professional help if DIY solutions fail or if the issue involves complex repairs.

Community Analytical Insights

Analysis based on real user discussions from appliance repair communities

Can I Fix This Myself?

75%

DIY Success Rate Difficulty: Either

Common Issues Reported by Users

Blocked or clogged filter
Faulty door latch or door switch
Malfunctioning water inlet valve

User Suggested Solutions

Check and clean the dishwasher filter. Remove the bottom rack, locate the filter, and rinse it under warm water to remove debris. Reassemble and run a short cycle to test.
Inspect the door latch and switch. Open the dishwasher door and check if the latch closes properly. If it appears damaged or does not engage, replace the latch or switch.
Test the water inlet valve. Turn off the water supply, disconnect the valve from the dishwasher, and check for blockages or test for continuity with a multimeter. Replace if faulty.