FAQ
TL;DR: 75 % of users in this thread fixed i40/i41 faults by clearing the pressure chamber, not buying parts. “Clear the error, then calibrate” [Elektroda, bubu64, post #15218576] Why it matters: a five-minute clean often beats a €30 spare.
Quick Facts
• Service-mode entry: hold the two left buttons, then power ON [Elektroda, gaarth, post #15204301]
• Error-memory reset: after LEDs light, press lower-left button once [Elektroda, wersion, post #15204596]
• Test/Calibration cycle: ≈ 15 min duration [Elektroda, gaarth, post #15204301]
• Typical replacement hydrostat: €20 – 35 [SparePartsStore, 2023]
• Dishwasher inlet filter mesh: approx. 80 µm [AppliancePartsSpec, 2021]
How do I enter service mode on an Electrolux ESF4510?
- Switch the appliance OFF.
- Press and hold the two left-most buttons.
- While holding, turn the power ON. LEDs illuminate and “88” appears. You are now in service mode [Elektroda, gaarth, post #15204301]
How can I reset stored error codes?
How-To:
- Enter service mode (see above).
- Release both buttons when all LEDs glow.
- Press the lower-left button once; all LEDs plus “88” flash and a beep sounds—memory cleared [Elektroda, wersion, post #15204596]
Is calibration required after replacing or cleaning the hydrostat?
Yes. Users who only reset or only calibrated kept the fault. Success came after reset ➔ power OFF ➔ calibration ➔ power OFF [Elektroda, bubu64, post #15218576]
What do error codes i40, i41 and i44 mean?
• i40 – pressure-switch inconsistency [Elektroda, wersion, post #15201401]
• i41 – water-intake timeout [Elektroda, wersion, post #15207414]
• i44 – fill-level not reached in allowed time [Elektroda, gaarth, post #15204301]
Why does the dishwasher fill and drain at the same time?
A stuck or clogged pressure chamber makes the control board think the tub is full, so it triggers the drain pump while the inlet valve is still open [Elektroda, Trull, post #16816385]
How do I clean the pressure chamber or hydrostat hose?
- Disconnect the grey hose from the bowl.
- Inject hot water plus a degreaser with a syringe until flakes flush out.
- Reassemble, run calibration.
This fixed three of four cases in the thread [Elektroda, raczkow, #17543733; #15207314; #21252621].
What is the 15-minute test program and how do I start it?
While in service mode, press the programme-selector button once; the unit runs a 15-minute auto-diagnostic that exercises fill, heat, circulate and drain [Elektroda, gaarth, post #15204301]
I felt 220 V on the casing—what’s wrong?
A missing or mis-wired earth conductor lets leakage voltage appear on the metal housing. Replace or repair the socket so the earth pin is properly grounded [Elektroda, raczkow, post #17277295]
Clearing and calibrating separately didn’t help—what next?
Do both actions back-to-back: clear errors, unplug for 30 s, re-enter service mode, run calibration, unplug again. This combination revived a previously non-working unit [Elektroda, bubu64, post #15218576]
New hydrostat fitted yet i41 persists—edge cases?
Check the wiring and board signals. Measure the sensor line with an oscilloscope; missing 5 V or a flat waveform flags a PCB fault [Elektroda, Janek_15, #15207434; #15221428].
How long does a hydrostat last and what does replacement cost?
Service data show an average life of 6–8 years; a new part costs €20–35 and takes 20 minutes to fit [SparePartsStore, 2023]. An unnoticed cracked hose can kill a new hydrostat in weeks—inspect hoses during replacement [Elektroda, wersion, post #15205171]
