Ianfe Posted January 26, 2022 Report Share Posted January 26, 2022 Hi everyone, My Spa starts up, then BUS light goes red and the board seems to get stuck in reboot cycle. I see the board has lights for limit, pumps etc, but what is BUS? Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted January 27, 2022 Report Share Posted January 27, 2022 5 hours ago, Ianfe said: board seems to get stuck in reboot cycle. So, restarting repeatedly? Usually transformer related, which is the small raised part of that board. Quote Link to comment Share on other sites More sharing options...
Ianfe Posted January 27, 2022 Author Report Share Posted January 27, 2022 17 hours ago, RDspaguy said: So, restarting repeatedly? Usually transformer related, which is the small raised part of that board. Yes, ah ok, thanks for info. Quote Link to comment Share on other sites More sharing options...
Ianfe Posted January 27, 2022 Author Report Share Posted January 27, 2022 This is the transformer? It has a green led light that is on. Also below is the BUS led that goes red, then reboots. @RDspaguy Quote Link to comment Share on other sites More sharing options...
cranbiz Posted January 27, 2022 Report Share Posted January 27, 2022 Yes, that's the transformer mentioned. It's actually the low voltage power supply. It is a common point of failure in the Watkins boards. 2 Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted January 27, 2022 Report Share Posted January 27, 2022 The small board that sticks out from the main board, with the big yellow square, is the transformer/ low voltage power supply. It is part of the board and, if faulty, will mean you need a new board. This issue can also result from an incoming power issue, so test voltages at the main terminal block and all connections on the board. 2 Quote Link to comment Share on other sites More sharing options...
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