Jim Clauss Posted July 13, 2020 Report Share Posted July 13, 2020 I have a 2003 cal spa with 5000 series control panel. Spa stopped working and control panel is flashing 20 then 11 then 00. Any ideas what to do? Thanks Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted July 13, 2020 Report Share Posted July 13, 2020 Turn off breaker for 10 mijutes and reset. Post a pic of your circuit board and equipment. Quote Link to comment Share on other sites More sharing options...
Jim Clauss Posted July 13, 2020 Author Report Share Posted July 13, 2020 It's been off for weeks, turned it on this morning, no changes. Is there a way to reset other than breaker? Pics attached. Thanks Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted July 14, 2020 Report Share Posted July 14, 2020 Use a voltmeter to test incoming power and transformer output. Test sensors with ohm meter. Post results. Quote Link to comment Share on other sites More sharing options...
Jim Clauss Posted July 17, 2020 Author Report Share Posted July 17, 2020 I have 120 on both inputs. How do I test output on trans? Assuming two yellow ones are output, how do I connect to them, I got nothing testing where wire connects at transformer coil(not sure if that's an accurate way to test) At plug (there's a black, white and two yellows going to transformer) there is 120 going to trans via black. Something clicks when I plugged it back in. Where/what are sensors? Thanks Jim Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted July 17, 2020 Report Share Posted July 17, 2020 Check red to black, should be 240v. The yellows are the load (output) side of the transformer. Put one lead on each yellow wire terminal at the plug on the board. They are not easy to get test leads on and must be plugged in to test. There should be a wiring diagram on the box cover, post a pic of that. There should be 2 small (usually gray) cables with a black and white pair or a black and red pair of wires that connect to a 4-pin connector at the board. These are the sensors. The ends are even harder to get on than the transformer and must be unplugged from the board. Set your meter to 20k ohms and test each. Quote Link to comment Share on other sites More sharing options...
Jim Clauss Posted July 20, 2020 Author Report Share Posted July 20, 2020 I have 240 volts. Yellow wires from transformer read 14.0 volts. Getting 3.76 on sensors, j21(temp & high limit) and j9 (pressure switch) pic attached of the two plugs tested. Thanks, Jim Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted July 21, 2020 Report Share Posted July 21, 2020 The temp sensor and the high limit sensor should be close to the same. The pressure switch should be open (no continuity) when power/ pump is off and 0 ohms (dead short) when pump is on. Transformer is good. If this all checks out, I'd say you need a new board. I usually recommend you upgrade the system to a vs system under these circumstances. Better system and more bang for the buck. Quote Link to comment Share on other sites More sharing options...
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