Bosch washing machine error codes – Front-load washing machines
16 codes from the Bosch service manual, with what each one means and the usual causes. Bosch shows E-codes on newer and F-codes on older models; some numbers mean different things on WFF/WFL/WFP series. Not an official manufacturer list - confirm with the model manual.
You can safely switch the unit off at the switch, wait 5 minutes and switch on again. Don't open the unit, touch wiring or handle gas: these checks need a trained technician.
E17also F17, E01, F01
Not filling in time
What our technician checks
- Tap fully open, hose straight, inlet filter clean, AquaStop hose filter.
E18also F18, E03, F03, E21, F21, E23
Not draining
What our technician checks
- Clean pump filter and impeller
- check hose and standpipe height.
E02also F02, F19
Heating fault - temperature not reached
What our technician checks
- Heater element and NTC sensor resistance
- scale.
E06also E07, F06, F07
NTC temperature sensor fault
What our technician checks
- Thermistor resistance and connector.
E04also E13, F04
AquaStop - water in the base
What our technician checks
- Tilt to drain base
- find leak at door seal, pump, hoses.
E09also F09
Heater relay / heating circuit
What our technician checks
- Element continuity
- if good, board relay.
E10also F10
Communication between modules
What our technician checks
- Power off 60 s at the wall.
E11also F11
Motor / drum blocked
What our technician checks
- Drum turns freely? Carbon brushes (replace under 10 mm).
E16also F16
Door not closed
What our technician checks
- Seal, trapped items, interlock.
E27
Low supply voltage
What our technician checks
- Extension lead, plug, socket.
E29
Water pressure too low
What our technician checks
- Tap, inlet filter
- needs about 1 bar.
E34also F34, E44, E47, E48
Door lock fault
What our technician checks
- Interlock signal.
E35also F35
Water level too high
What our technician checks
- Inlet valve stuck open or pressure switch.
E36also F36
Pressure switch fault
What our technician checks
- Hose to pressure switch blocked
- switch.
E43
Motor triac fault on board
What our technician checks
- Board.
E50also F50
Motor tacho or driver fault
What our technician checks
- Tacho about 100-200 Ω.
Code not here, or still showing?
Send a photo of the display and the model sticker on WhatsApp. We'll tell you what it means and whether it needs a visit.
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