Jennifermains Posted March 25, 2021 Report Share Posted March 25, 2021 I had a 2007 Tiger River Bengal Spa. New heater relay board, circuit board a d brand new heater. Ready light and power light flashing when turn power on. Heater not heating. We’ve had 2 technicians out and replaced heater today. Still the same thing. Someone please help!! Quote Link to comment Share on other sites More sharing options...
RDspaguy Posted March 25, 2021 Report Share Posted March 25, 2021 Sensor overheat from low flow condition. Remove filters. If it continues, check circulation pump operation. If that is good, test thermistors. 1 Quote Link to comment Share on other sites More sharing options...
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