EODNubby Posted January 25, 2023 Report Share Posted January 25, 2023 (edited) So I have a 2017 Caldera Paradise Martinique not heating up. It has power, no tripped breaker, and I have isolated it to the board. The fuse on the main board is fine. The LED for the heater does not come on. So, where do I start with troubleshooting? I am very handy with tools to include my voltmeter and resoldering board components if I have to. I even wish I could get a repair manual but, I am sure they are only available to factory authorized service reps. Edited January 25, 2023 by EODNubby Added the whole board to clarify for a reply to help. Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted January 25, 2023 Report Share Posted January 25, 2023 Post photos so we can see the entire board. Often we can see indicators that spa owners won't. Test and verify the wires going from the heater relay board over to the main board. Red to white 120V black to white 120V red to black 240V. 1 Quote Link to comment Share on other sites More sharing options...
EODNubby Posted January 25, 2023 Author Report Share Posted January 25, 2023 (edited) @CanadianSpaTechI added some pics. I am getting the voltage values from the main board to the heater board. It seems like the heater board is not getting the proper signal to the relay board to send that power out to the heater itself. I also jumped the pressure switch on the main board with no luck. I can see a small "heater on" LED up on the top much like the Jets On LEDs but, it does not light regardless of what I do. It has a circulation pump running when the jets are not on and the jets all work in their various modes. When I had the heater out to repair a leak, it registered 4 Ohms from one side of the element to the other when it was isolated on the bench. So, now I am ready for the next trial areas. Thanks Edited January 25, 2023 by EODNubby Added pic for clarity Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted January 25, 2023 Report Share Posted January 25, 2023 Do you get 240V at H1 and H2? You might want to remove the heater relay board and look on the back for burnt or darkened areas. Quote Link to comment Share on other sites More sharing options...
EODNubby Posted January 26, 2023 Author Report Share Posted January 26, 2023 I do not get 240 to H1 and H2. Whatever pathway sends the voltage there is not working. Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted January 26, 2023 Report Share Posted January 26, 2023 3 hours ago, CanadianSpaTech said: You might want to remove the heater relay board and look on the back for burnt or darkened areas. Quote Link to comment Share on other sites More sharing options...
Carl M. Posted January 26, 2023 Report Share Posted January 26, 2023 Before you go pulling the boards apart turn power off to the spa, pull the filters out, turn power back on and see if it starts heating. if not, let me know and we will go to the next step Quote Link to comment Share on other sites More sharing options...
cranbiz Posted January 26, 2023 Report Share Posted January 26, 2023 9 hours ago, Carl M. said: Before you go pulling the boards apart turn power off to the spa, pull the filters out, turn power back on and see if it starts heating. if not, let me know and we will go to the next step It's not his filters. If you go back and read the replies, you will see that he is not getting voltage to the heater. A Watkins tub should have 240V between H1 and H2 when calling for heat, if it's not getting 240V, it's something electrical related. OP. I'm not sure that 4 ohms is showing a good heater. Normally we look for 10-14 ohms. Quote Link to comment Share on other sites More sharing options...
EODNubby Posted January 26, 2023 Author Report Share Posted January 26, 2023 Filter is out. I can't even get the 240V to the heater leads to really test whether or not the heater 4 Ohm reading is acceptable. It has good flow, circulation, air and jets and waterfall are all strong. So, my problem has to be on one board or the other. Quote Link to comment Share on other sites More sharing options...
EODNubby Posted January 26, 2023 Author Report Share Posted January 26, 2023 Here is the back of the heater board and the main board. I do not see anything burnt. If you see something that looks out of place please let me know. Quote Link to comment Share on other sites More sharing options...
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