Adding to HarryM1BYT's description of his circuit board fix for his Hotpoint WD420.
I'm guessing all the Hotpoint range use the same circuit board as my Hotpoint Ultima WT741 washing machine developed the exact same fault.
For the faint hearted who are concerned about doing this fix themselves, I have added some photo's to help guide you.
Here are connections 1 and 2 to be unplugged, the board is held in place in the machine by a single screw near the bottom and left hand edge at the back of the machine.
Remove the 3rd connection photoed
Remove the 4th & 5th connections photoed
Here is the board still in its protective plastic casing, carefully press in the snap connector tabs along the sides and top edge to open the case.
The prize away two more snap connector tabs holding the circuit board to the case.
Here is the offending capacitor arrowed in the middle of the board at location C17.
Close up of the capacitor
Here you can see as compared to the other capacitors in the group the slight doming of the failed 680mF capacitor.
Note the negative markings in relation to the board.
Again from the opposite side of the capacitor group showing the doming of the failed capacitor more clearly.
Simply fire up your soldering iron and while its warming up, locate the two soldered joints for the capacitor on the back side of the board.
While gently prizing the capacitor from the board using a see-sawing motion whilst at the same time simultaneously heating both joints, pull the dead capacitor free from the circuit board!
Locate a new
1000mF 10 Volt capacitor
I found one on an old computer motherboard I had in my loft along with other old circuit boards I keep just in case of emergencies!
Solder new capacitor in place taking careful note of polarity.
Assembly of circuit board back into washing machine is a reversal of removal.
Cost of replacement circuit board £54 . . . . . .
My costs . . . zero!
Hey-presto!
Clean clothes again!