I have just removed my units to clean them and realign some jets. There is a water connector, pretty obvious function, and an electrical connection, what does the electrical connection power?

 

Hello Glynn, 

Thanks for joining and posting your plea. 
Heating the jets, I would have thought. 
Hope this helps.

Kind regards,

Gareth. 
p.s. Note your humour with your Location, but a proper location would be nice - and appreciated. Many thanks. 
 

Thanks Glynn,

Yes, I know somebody in your area. It’s a Welsh thing you see, we need to know where people are from, since we may know someone within a 100 mile radius! - and that results in a stamp of approval. 
Yes, I know it’s daft, but it’s a friendly Welshness.

Kind regards,

Gareth.

p.s. Hope we solved your query.