My Indeset widl102 washer dryer

change the water valve

If washer hums but doesn't fill, water isn't getting to washer check screens where fill hoses connect to washer. Screens may be blocked. If washer fills then hums check to make sure belt is on. Tip machine up to view belt underneath.

You will need to check the drum rollers. Sounds like one or more may be failing. Here is a link to the part.
Here is a video to show you how to make the repair.

If the unit will not spin at all and makes a humming noise, sounds like something has seized up in the back of the unit. This could be a belt broken, motor seized up, or the transmission, if your unit has one, is gone.

you may need to replace the capacitor that starts the motor

check heater element/ should read about 32ohmns on multimeter if not reading replace,if ok replace stat

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I have a fairly new Hotpoint Aquarius machine (out of guarantee).
When it is switched on, all of the red lights flash and it will not operate.
Can you help please ??

Check the water level fill sensor. Some used to be pneumatic tubes connected to a sensor. Your washer may have a different type of sensor. It seems like it fills ant gets to a point where it expects the fill sensor to trip but instead just stops. Also re check ALL connections to main drive motor. 
Also verify your mains power can handle the draw of the rated wattage. When it goes to engage the main drive motor it may not have enough current from the mains and simply stops.
Also check that the connection to the tumbler drum is not frozen.

hotpoint aquarius 1000 if motor is connected (plastic plug in socket) RCD earth trip trips in main board when washer is switched on, trips as soon as water starts to fill.