Felix372 Posted May 2, 2022 Report Share Posted May 2, 2022 We bought our Miami Whirlpool Spa about 2 years ago and have had no issues with it. Water is changed regularly and it is in regular use. It's not hard wired into the house electrics and is powered by its plug which has a 3A fuse The hot tub suddenly switched itself off a few days ago and I noticed the 3A fuse and the surrounding plug had melted. I have changed the plug, but now the hot tub will not switch on and just blows the fuse again each time i try and switch it on. The lights come on the control panel and then it suddenly clicks off - any suggestions....? Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted May 2, 2022 Report Share Posted May 2, 2022 Try post in the inflatable section of this forum. Bad Heater? Quote Link to comment Share on other sites More sharing options...
Felix372 Posted May 2, 2022 Author Report Share Posted May 2, 2022 Its not an inflatable one - its a rigid sided 5 man design. I've taken the sides off, but nothing obvious out of place or damaged. Quote Link to comment Share on other sites More sharing options...
Felix372 Posted May 2, 2022 Author Report Share Posted May 2, 2022 https://www.ebay.co.uk/itm/353091880510?_trkparms=ispr%3D1&hash=item5235ea863e:g:gAIAAOSw5~dgk7Tl&amdata=enc%3AAQAGAAAA4KvYeeA%2FLGTSS8%2FREJMKFp2vp%2Bh6HTnX6UvgYFd5NcsE2Qsc0ByxxYoShP%2BjkGdr91aKVHaEeG4svoNzlOIwqPAp4OsfaadsruBpVDqpwyLSXNZUogjUB9%2BEGf3k%2BryV8kkMOYNFrzkyDflgpH9vIe%2FbDEM1HuroiqRJfD4q64FUkq%2FaRQjOX1U9xJo1Kba7MszNJIjbrWry%2BHXDl0zOIU4W%2F1uvE1hc7erz6zsmcDJQSAdgq6keQfIFczN3px3%2FbYAW9E2h1GZ4QoAYuf%2BLIFcB0JLMKZf4r75L0lt%2BGvPG|tkp%3ABFBMsuG9z5Bg similar to this one Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted May 2, 2022 Report Share Posted May 2, 2022 Ok post photos of the circuit board and the schematic on the inside cover. I would try and disconnect the heater and lift the 2 copper tabs up so the don't touch anything and see if the breaker holds. Bad heater most common cause of trip. Also try disconnect the ozone first if there is one and try. Below for a Balboa pack. Your might be different post the photos so we can see Quote Link to comment Share on other sites More sharing options...
Felix372 Posted May 5, 2022 Author Report Share Posted May 5, 2022 Quote Link to comment Share on other sites More sharing options...
Felix372 Posted May 5, 2022 Author Report Share Posted May 5, 2022 Here are the pictures of the circuit boar, cover and the heater Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted May 5, 2022 Report Share Posted May 5, 2022 Try and disconnect the heater from the board. The black and white wires at the top of the pack help in with phillips screws and try it. Quote Link to comment Share on other sites More sharing options...
Felix372 Posted May 13, 2022 Author Report Share Posted May 13, 2022 Tried this and i get the same result - the lights come on the control panel and then it suddenly clicks off and the fuse is blown. What else could it be...? Quote Link to comment Share on other sites More sharing options...
Felix372 Posted May 15, 2022 Author Report Share Posted May 15, 2022 What should I try next? Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted May 15, 2022 Report Share Posted May 15, 2022 Disconnect everything until you find something that is causing the short. Pumps lights ozone blower heater. What fuse is blowing? Not sure I understand.. first I assume you are in Europe correct? Next you say it is not hardwired so how are you getting 240 V to the spa? Quote Link to comment Share on other sites More sharing options...
Felix372 Posted May 16, 2022 Author Report Share Posted May 16, 2022 Yes I am in the UK. Its not hardwired to the house electrics; ie it doesn't take a direct line from the consumer unit with RCD The Spa comes with a three point plug and plugs into the mouse mains. Its the fuse in the plug (5A) which blows each time Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted May 16, 2022 Report Share Posted May 16, 2022 Disconnect everything and if it still blows the fuse replace the plug. Post photos of the plug Quote Link to comment Share on other sites More sharing options...
Felix372 Posted May 16, 2022 Author Report Share Posted May 16, 2022 Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted May 16, 2022 Report Share Posted May 16, 2022 4 hours ago, CanadianSpaTech said: Disconnect everything and if it still blows the fuse replace the plug. Post photos of the plug Have never seen one and know little of the European power grid but still think there is a short somewhere and if you disconnect everything and it still blows I'm looking at the plug. Quote Link to comment Share on other sites More sharing options...
Felix372 Posted May 19, 2022 Author Report Share Posted May 19, 2022 Getting somewhere I think I disconnected the pump and now the electrics remain on and the fuse doesn't blow - so it must be the pump that's the issue. Could it be blocked etc...? Are they easy to take off and clean? Can someone explain what this 'handle' is for - is it a valve for the pump? Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted May 19, 2022 Report Share Posted May 19, 2022 Gate or Slice valve so you can push it down to block off the water and replace the pump without draining the spa. There should be one before the pump and one after the pump. Might be on the other side of the heater. Quote Link to comment Share on other sites More sharing options...
Felix372 Posted May 19, 2022 Author Report Share Posted May 19, 2022 Great - I think there is another one on the other side. I'll take the pump out and give it a clean - i wonder if there is something blocking the impeller? Do these normally have an in-line filter? To check its working OK, can these be fixed to a 240v supply directly? Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted May 19, 2022 Report Share Posted May 19, 2022 7 hours ago, Felix372 said: i wonder if there is something blocking the impeller? Unlikely but you will see when you remove it. 7 hours ago, Felix372 said: Do these normally have an in-line filter? no 7 hours ago, Felix372 said: To check its working OK, can these be fixed to a 240v supply directly? It's not working ok. Open the square box on top of the motor and see if there is a burnt wire or something that would cause the fuse to blow. Quote Link to comment Share on other sites More sharing options...
Felix372 Posted May 20, 2022 Author Report Share Posted May 20, 2022 There are no burnt wires in the box, I wonder if the capacitor needs replacing - but would that necessarily blow the fuse if it stops working? I'll take the motor out and give it good look over the next few days Quote Link to comment Share on other sites More sharing options...
Felix372 Posted May 28, 2022 Author Report Share Posted May 28, 2022 Took the pump out - no burnt wires at all The impeller turns freely too. Re-fitted it back to the hot tub and same thing happens and the fuse blows - not sure what else it could be? I wonder if i can take the pump somewhere to be checked? Quote Link to comment Share on other sites More sharing options...
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