Bertazzoni Dishwashers F5 Error: Inlet valve leakage fault
What Does F5 Mean on a Bertazzoni Dishwasher? F5 on a Bertazzoni ASKO-platform dishwasher indicates that the water inlet valve is leaking — passing water into the tub even when the solenoid is closed and the machine is idle. The anti-flood protection system detects the unexpected water accumulation and triggers F5, causing the drain pump […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
No. A leaking inlet valve can overfill the tub and activate the anti-flood system repeatedly, risking water damage to the cabinet and surrounding floor.
Can I reset the code?
No. F5 reflects a mechanical valve fault; resetting the electronics does not prevent the valve from leaking.
When to stop immediately?
Stop if you notice: Water is visibly pooling in the tub between uses., The anti-flood alarm or drain pump activates at every cycle start..
Symptoms You May Notice
Drain pump runs at cycle start
The pump activates immediately when a cycle begins, purging water that has slowly entered the tub while the machine was idle.
Slow water build-up between uses
A small amount of water is visible in the tub bottom even when the dishwasher has not been used recently.
Possible Causes
Failed inlet valve solenoid seat
The valve's rubber seat has worn or warped, allowing a slow bypass flow even when the solenoid is de-energised.
Requires ProfessionalDebris lodged in valve
Scale or sediment has lodged in the valve, preventing it from sealing fully when closed.
DIY PossibleSafe Checks You Can Do
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1
Inspect tub for standing water
Open the dishwasher door when the machine has been idle for several hours. Any water pooled in the tub base confirms the inlet valve is not sealing.
A small amount of residual water in the sump filter area is normal; water covering the tub floor is not.
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2
Check the inlet supply filter
Turn off the water supply to the dishwasher. Disconnect the inlet hose at the back and inspect the mesh filter screen for debris.
Rinse the filter screen under running water and reattach; if water stops accumulating, debris was the cause.
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3
Power-cycle and monitor
After clearing any debris, power-cycle at the breaker, run one full cycle, then leave the machine idle for 4 hours and check for water accumulation again.
Persistent water accumulation after cleaning the filter means the valve body itself needs replacement.
When to Call a Professional
Contact a qualified technician if:
- Water continues to accumulate after the inlet filter has been cleaned.
- The inlet valve solenoid tests correctly but the valve still bypasses water.
- Anti-flood float remains triggered after draining the tub.
Need Professional Help?
Find qualified technicians in your area for proper diagnostics and repair.
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