Zanussi washer Zwt71201wa pump running continuously

[Liam berry]

Hi, my 15 month old zanussi Zwt71201wa stopped draining yesterday, this was due to debris jamming pump impeller. Now that has been removed, the pump continues to run without moving on to the next stage in the cycle, on any programme.

Have tried pouring water in the drum and pump is definitely pumping out into a bucket until it's empty, but carries on pumping.

Have tried blowing down pressure switch pipe to pump area and a bubbling is heard.

Have tried master reset holding down two buttons, going through each programme clockwise and retried spin cycle. It still just continuously pumps.

Code showing is e21. 

I've kinda hit a brick wall and would appreciate any help or guidance.

Many thanks.

Liam.

[Whitegoodshelp (Andy)]

When you say the pump is pumping into a bucket how high is the bucket? If you place a bucket onto the floor and put the drain hose into it the water will easily pour through but it needs testing to see if it can pump the water up at least 3 or 4 feet.

E21 on many Zanussi washing machines means, "difficulty draining". So if it is still pumping up to 3 or 4 feet high then I'd suspect a problem with the pressure system. The pressure system is what tells the washing machine how much water is inside. A blockage in the pressure chamber for example can stop the signal that the water has all gone. I have an article describing common faults on washing machine pressure system