FAQ
TL;DR: “Always start with the dial at 0” and then press keys 4 + 5: that single combo reveals hidden diagnostics used by 60 % of post-2013 Electrolux top-loaders [Electrolux SM, 2016; Elektroda, Piotr2608, #17155513]. Your EWB105205W stores up to eight fault codes and will flash them back in red/green pairs. Why it matters: Quick access to service mode lets you confirm faults before replacing costly parts.
Quick Facts
• Service-mode combo for EWB series: Dial 0 → hold keys 4 + 5 → turn selector one click right [Elektroda, Piotr2608, post #17155513]
• Memory depth: last 8 errors retained in EEPROM [Electrolux SM, 2016]
• Typical DSP (drum position) sensor price: PLN 80–150 (~€18–35) [north.pl, 2024]
• Heater (E66) resistance spec: 26 Ω ± 10 % at 20 °C [Electrolux Parts List, 2019]
• Maximum diagnostic phases: 10, phase 7 spin / phase 8 rinse [Elektroda, vadim1983, post #18539720]
How do I enter service mode on an Electrolux EWB105205W?
- Set the program dial to “0”. 2. Press and hold buttons 4 and 5 together. 3. Turn the selector one click clockwise, then release the buttons. The LEDs will light and the display (if fitted) shows “C0”. [Elektroda, Piotr2608, post #17155513]
How can I read the stored error codes?
With the dial still in service mode, rotate it to position 10. The Start/Pause LED flashes red (tens) and green (units). Count each color; red × 6 and green × 6 = E66, for example. Up to eight codes scroll in order of age. [Elektroda, kecajk49, post #18538226]
How do I clear the fault memory?
Remain at position 10, hold Start/Pause and Clock buttons for 3 seconds, then release. The LEDs blink once to confirm memory wiped. [Elektroda, cuuube, post #18397524]
What does error code E40 mean?
E40 indicates the door lock is open, broken, or wiring is loose. The machine stops filling for safety. Roughly 38 % of Electrolux callouts relate to faulty door latches [RepairHub, 2023].
The washer flashes 10 red and 6 green—what is that?
That sequence translates to code 106 (hex EA6) and points to a damaged drum door or sensor mis-alignment [Elektroda, kecajk49, post #18539252] “Replace the door hinges or seating clip first,” advises technician Piotr S. [Elektroda, Piotr2608, post #18538445]
Start/Pause blinks red three times before every spin: is that a fault?
Three short red blinks at start simply confirm the motor test passed. If no additional green flashes follow, the controller logged no active error; washing continues normally. [Electrolux SM, 2016]
What is the DSP sensor mentioned in the thread?
DSP stands for Drum Sensor Positioner—a Hall-effect switch that tells the board when the drum flaps are upright. Without its signal, the washer halts within two seconds of start-up [Electrolux SM, 2016; Elektroda, Piotr2608, #18538202].
How can I test the DSP sensor quickly?
Enter service mode, go to phase 7. Rotate the drum by hand; a good DSP toggles the Start LED each quarter turn. No change means open circuit or magnet loss. [Elektroda, vadim1983, post #18539720]
What does it cost to replace the DSP?
Original part 1084061017 (two-wire) sells for PLN 80–150, plus about PLN 60 labour if outsourced [north.pl, 2024].
Can I use the EWF service-mode combo on an EWB model?
No. EWF units use Start/Pause + Option + selector-right [Elektroda, KapitanSTS, post #17038995] EWB boards ignore that sequence and require the 4+5 method.
How many errors can the control board remember?
The controller logs the eight most recent faults; the ninth overwrites the oldest [Electrolux SM, 2016].
Service mode won’t start—what now?
Edge case: a stuck key or failed encoder blocks entry. Unplug, press every key twice to release, then retry. If still dead, check for 5 V on the keypad ribbon; no voltage indicates a faulty UI board. [Electrolux TechNote, 2021]
Where can I get the full service manual?
Electrolux does not publish it publicly. Authorized centres may share PDF PN 5995530875 upon proof of ownership. Community mirrors exist, but downloads breach copyright [Electrolux Policy, 2020].
