Mhowe39 Posted September 18, 2019 Report Share Posted September 18, 2019 Hello; I have a older Tiger River Bengal model M that will not heat. I bought 2nd hand. I have replaced the heater, circ pump and heater relay board. I have thoroughly cleaned the filter as well as removed possible air locks. The heater is a no fault 6KW so there is no pressure switch (fuse in panel). When I take control panel cover off, htr on is lit red, and lim light is green. There was an ozonator that was installed, but currently not hooked up. I have water flowing into spa as I can see the water moving, however there are no bubbles. If I disconnect hose from circ pump and plug circ pump with my thumb to pressurize, when I reconnect I will get bubbles for 1-2 seconds. Not sure what additional steps to take? Quote Link to comment Share on other sites More sharing options...
Peteyboy Posted September 22, 2019 Report Share Posted September 22, 2019 Check power at the heater terminals on the heater relay board. If you have power there it should be a bad heater. If no pwer there check power at the wires from the heater relay board to the main board. It could be a main board problem. I'm not on here much so I may not respond again. Quote Link to comment Share on other sites More sharing options...
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