Odd fault codes then stops working.

If your Hotpoint FDEU 9640 washer-dryer is stopping prematurely during the dry cycle with all the LEDs flashing amber, it could be caused by a few different issues:

1. Check the filter: Make sure the filter is clean and not blocked. A blocked filter can cause the machine to stop working properly.
2. Check the venting: Make sure the venting system is clear and not blocked. A blocked vent can cause the machine to overheat and stop working.
3. Check the heating element: If the heating element is faulty, it can cause the machine to overheat and stop working.
4. Check the thermostat: If the thermostat is faulty, it can cause the machine to overheat and stop working.
5. Check the control board: The control board controls the various functions of the washer-dryer. If it is faulty, it can cause the machine to stop working.
6. If none of the above steps work, it is possible that the machine has a more serious problem that requires professional service.

It is important to refer to the user manual or contact Hotpoint technical support for further assistance and specific troubleshooting steps for your washer-dryer model. It is also important to make sure the machine is not plugged in before attempting any troubleshooting steps. It is also important to note that it is not safe to use a multimeter to test any of the heating element or thermostat

it is not doing what it's supposed to do.

power is not routed properly - replace the board

Sounds like you're fill valves are junk which sadly happens allot. This video is very generic but should give you an idea

press the wash button it will work.

If your PreWash is flashing then you have a pressure problem. You can dry using a washer machine cleaner or doing a hot cycle with white vinegar. If that doesn't help the electronic would have to be changed.

No solution! tried resetting to factory defaults but ended up that even the drain pump stopped working. after flooding the kitchen (nearly). I decided it was terminal and am loking for a new dishwasher urgently as I type. Cheers.

ok, just a few minutes after posting this as a fault, I have opened the covers, the machine has a leak, the undertray has a sensor which has detected this, flashing light (prog 45 degC wash) flashing is a code to indicate leak sensor active.
Other prog lights flashing indicate a different fault, the following details each... this is a cut/paste from another forum site, copied without permission....

jawa592 on 6th Feb 2008
Cannot guarantee 100%accurate but you all might like what the flashing fault codes actually refer to, note what follows are pointers to what bit has gone wrong only. You should have the programmes running left to right: led1=intensive,led2=normal,led3=eco,led4=fast,led5=prewash,led6=delicate wash.ok so when this heap of western european tosh goes wrong one or two lights will flash this is what they mean:led3=m/ch has o/flowed water . ie the base underneath has sensed a leak.4=i/let h2o valve u/s or slow fill.5=thermister(electronic thermostat) is u/s or more likely the pcb .6=timeout heating which means the thermister senser between the door halves has become faulty or detached.3+4=no pump out,slow pump out,pcb u/s,blockage.4+5=tap off i/let valve.3+5=wash motor not coming on -seized,winding o/cic.but can also mean mesh plte filter badly blocked.1+4software fault with pcb.4+6=heating cic u/s (usually the heater tube )but can be the heater relay on pcb.3+4=pcb u/s.I don`t except any responsiblity for this being spot on or near spot on!! hope this helps someone.Try NOT to electrocute yourselves please!! If your not at all confident walk away and get "someone" who knows what they are doing.Cheers. jawa592

power supply board may be defective.

poss blocked filter which also controls your pressure system, on your machine I believe if the prewash ligbt is flashing it would indicate a blockage there

I too had this problen today. Printed off a manual from the Hotpoint website. Very helpful troubleshoot section. Anyway, flashing eco and fast lights and beeping sound indicates 'water feed pipe blocked' You need to check the water inlet connections on your tap.However, when we pulled it out we noticed the blue water inlet pipe was slightly kinked. Straightened this out and hey presto! It works fine again. How this happens when its worked ok for 18 months will never know but still. Try it! hope this was helpful...shewoo