Smells problem with smells coming from zanussi washing machine

SOURCE: zanussi washing machine

E90 is not a listed error code however most 90 range codes relate to a faulty pcb, some times worn motor brushes and blocked filter and air traps can cause some innacurate error codes being displayed we would normally check these items prior to replacing the PCB Regards Advisor

SOURCE: zanussi electrolux washing machine zwf1431w

Error E20 means the machine has failed to pump out. 1st check the filter at the bottom right hand side there may still be water inside if so pull the grey tab to the left of the filter there should be a thin hose extend it put it into a shallow dish and pull the cap off to let the water drain this may be a slow process. When the filters out look into the hole with a torch to see if any obstructions in the pump impeller this looks like a cross. If the filters and pump are clear it may be the pump has failed.

SOURCE: smell coming from insie washing machine

This is usually caused by mostly using low temperature washes. The detergent manufacurers don't tell you, but low temperatures don't kill the bacteria present on most clothes, so they breed and and multiply in nice warm moist washing mashines. The cure is to do a "maintenance wash" every so often, which is the hottest wash the machine can do, and this will kill the bacteria. Also adding washing soda to this wash will help to freshen it up.

SOURCE: hi zanussi fjr 1254 w error code e90 what does

This error code seems to be the control board detecting a wrong configuration (in other words, an illogical set of sensing conditions, from its connected sensors and wiring). It apparently can happen, when wires become badly contacting, or if contaminated with motor brush carbon (the horrible black powder that comes off the motor commutator and brushes), or corroded from other contaminants from the soap dispenser area. You should be able to check this, remove, clean and replace the contacts:
Thanks

SOURCE: Zanussi Washing Machine Troubleshooting, Problems BY EORR E40

E40 is code for the door being open. Try closing/slamming the door hard a few times