Re: Hoover Optima fault
Error 3 is a drain fault – specifically that the machine is taking longer than the allowed 4mins 30secs to drain the water..
You need to check the filter, pump, drain hose and sump to ensure they’re all clear and working correctly.
If everything is draining correctly then unplug the machine and check the heater element with a megger if you have access to one, if the insulation fails this will also give E03 – or give Hoover a call if it’s still in warranty.