Jfsgrl2006 Posted October 2, 2021 Report Share Posted October 2, 2021 The past year I have replaced the board(balboa Mach 7), pump, and heater. All was working well pump heater lights. The top panel display went out so we replaced that. Since doing this, we have not been able to reach 104 degrees. Initially it heated to 100 and no higher. Now we can’t get any heat from the heater and have a cold tub. After priming the tub, the down arrow and pump indicator lights are on. I tested the voltage at the plug in on the board and showed a reading of zero. Also, I tested the fuses and they were ok. I don’t know what else it could be but a failed board that is only 1 year old??? Any suggestions??? Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted October 2, 2021 Report Share Posted October 2, 2021 120V or 240V hook up? Post photos of the circuit board and the schematic on the inside cover. Quote Link to comment Share on other sites More sharing options...
Jfsgrl2006 Posted October 4, 2021 Author Report Share Posted October 4, 2021 It is 110, there is no inside schematic, it is a Mach 7 balboa, it has been raining here. Will get a picture when I can. 1 Quote Link to comment Share on other sites More sharing options...
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