Think the brushes need replaced

should b screws holding back on

Change electronic board it is what will cause this problem if you checked all ducts an fan and still heats board is bad

new motor brushes needed lindsey, 90% sure thats your problem.

it is located at the back of the machine...are you encountering problems with this machine? check this link i will give you, this a forum/comments which the owners encountered different problems with this machine..

http://www.unbeatable.co.uk/p_rupr/Hotpoint-Aquarius-WD420-Front-Load-All-in-One-Washer--Dryer-Reviews/22394331.html

My WD 420 packed up, after watching the blogs I did:1) remove filter - found 2 quid, a thong, a pop sock, a christmas cracker toy and a load of gunge. 2) removed the motor - brushes worn to nothing - replaced them.
Washer running as new. 6 years old, 2 house moves - not bad reliability. Nearly gave up and bought a new machine!!

Copy and paste this link for your manual.

http://appliancejunk.com/ge/washer/31-9135.pdf

It is a brush type motor, rated at 1400rpm.
Runs on mains 240v
Trust this is the info you require.
If you need more info, e-mail me.
Thanks.

You must check for overload try to messure the amount of clothing you adding to the machine, and try to restart by unploging the aparat from the wall outlet, wireing diagram are located usualy on the back of the aparat.

Hi,
This link should get you what you're looking for:

http://laundry.manualsonline.com/manuals/mfg/hotpoint/wd420.html

Hope it helps...

E30 indicates a motor problem, you will need to call an engineer.
Possible worn brushes which you can do if you know what you are doing.