vaillant ecomax 835E pump not working fault f22

[mickt5000]

hi I had a fault with my vaillant ecomax 835E
about 6 months ago it started to show f22 in the lcd & would not run
i found the pump wasn't running & after a little fault finding found the 2.5uf capacitor was faulty on the pump . which i replaced with one of an old pump I had in the garage PROBLEM SOLVED
HOW EVER IT LOOKS LIKE THE PROBLEM IN BACK
A. CAN I BUY A CAPACITOR FROM SOMEWHERE 2.5uF /400V
B. IS THEIR A FAULT IN THE PUMP CAUSING IT TO FAIL

PS i've TRIED RS components,CPC,FARNELL,MAPLIN NO LUCK (I THOUGHT IT WOULD BE EASY TO FIND SUCH A widely USED component

 

[Agile]

Putting a used component in will mean an earlier failure!

They run hot and thats not ideal.

They most often fail for the users who turn off the heating by turning the CH temp to minimum leaving the pump running 24/7

Tony

 

[mickt5000]

thanks tony just tested capacitor and it has failed again
only reads 0.5uf when i put it in it was 2.5uf

 

[Agile]

Exactly, QED !

 

[ChrisR]

Try:
http://www.rapidonline.com/producti...stic+case+motor+run+capacitors&moduleno=62525