We bought a Canadian Spa Swift Current V2 around 2 years ago. It's not had a great deal of use, but been well maintained (it's become a hobby) and is stored as per the guidance during the winter.
We have numerous issues with it, however most recently and since getting back out of storage, is a persistent flow, or lack of, issue. It seems as if the pump circulating the water (the one that contains the impeller I assume) doesn't kick in, causing insufficient flow and then the PCU overheats throwing an E5 error. We can not clear this, unless we take it apart, remove the impeller and reseat it... although I'm not entirely sure what that achieves. We've done this 4 or so times. 2 occasions its just randomly stopped working. The other two have been when we stop the jets before they're scheduled to finish their cycle.
It's all very strange, and I'm at a loss of what to try or do. We've tried to speak to Canadian Spa (in the UK) however their customer service is terrible. When I contacted them a few months back, before stripping the unit myself, they didn't reply for 2 months. Then more recently when I emailed asking for advice, they rang up and made it clear that they hadn't read my email or were aware of the things we had tried. Even when explaining on the phone they weren't listening. They want to charge £60 to courier it too them, then £60 to replace the impeller (that may not actually be the issue), then send it back 'working'. My concern is that I can get it 'working', only for it to die a few weeks/months down the line.
Has anyone has similar issues, or can suggest a way to resolve it. I can't seem to find the full circulation pump online to buy it myself and it seems pointless to just replace the impeller (although happy to be corrected).
Ive stripped the unit almost completely to ensure theres no muck in any of the pipes. I use an anti limescale solution once a week since we initially noticed a build up within the heat exchange, so that shouldn't be an issue.
[EDIT] I've seen another topic that mentioned a damaged impeller. Whilst the grinding noise etc do also occur although we can't remember if that was just general noise (its not that loud), the impeller itself seems to be in good condition?
Hopefully someone can offer some guidance, it would be very much appreciated 🤞