Error Code E90
it seems to be a common error
code on some Zanussi models. 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:
Take the top off the machine, (ENSURE IT IS UNPLUGGED) and on
the right hand side of the machine, you should see a set of 4 blue
wires that go from the electronics module to the front display unit.
Take this plug off (it is held on by plastic retainers) clean with
wd40, or silicone (Servisol) contact cleaner, then dry, replace, then
try again. If it is very badly corroded or pitted, you may have to
replace that part of the wiring and socket.
If
it is not that, then the wiring to/from various other sensors could be
damaged, or the control board could be faulty. It is probably worth
checking around other plugs and sockets, re-seating each one in turn,
that lead to the control board, as they are expensive (£60 - £80). Pulling off
and plugging back on (Re-seating) the plugs and sockets has the effect
of cleaning the contacts, and may fix certain intermittent faults like
this. Obviously check for any plugs/sockets that appear burnt,
corroded, or discoloured compared with the others, and clean the
contacts with emery or a needle file.hope this helps pls do let me know
