F08 on Ariston Advantage AIB16 - which relay and where can I get them?

Hi all,

I have been coping with this problem for a while now.basically just doing a quick wash which doesnt seem to make the heater relay flip out.

I checked out the board and there does appear to have been some damage to one of the relays but it has been replaced. The soldering looks a little dodgy but the connections check out ok.

There are about 8 or so identical looking relays clustered in the bottom corner of the board. Two questions;

1 - Which relay does what..?
2 - Where can I get replacements..?

Thank all