Potterton EP2001

Hello 1st time I've used this site, so please bear with me. Want to see if anyone has any answers for me before I shell out loads of money!

I have a Potterton EP2001 boiler system. My water heats up no problem, but my heating won't kick in, even though on the programmer it says its on. I noticed last year that if my heating was up too high, the pump would have buzzing noises come from it. I recently turned on my heating and all was working well, but after a few days the buzzing noises are back!!! I've had this system since new (roughly 13 years) Last year when this happened a slight knock with a hammer on the pump would get it running again, I'm not so lucky this year! Anyone know what I can do to get my heating working again? I'm freezing here!!

Thanks

Have a look in the airing cupboard or where the pump is located. Is there a valve(s) connected on the copper pipework after the pump? If you have a fully pumped system and i assume it's been ok on hot water, i'd suspect the diverter valve and or motor inside.

a. bigger hammer
b. change pump

Hello Gas2Air

Thanks for replying!

The pump is attached to copper piping by a t pipe. Can you tell me what to do? Can I just point out I'm a woman and don't have a clue about anything like this, so simple instructions would really help as to what I can do to get this working again.

Thanks