Jonas

Hello 2 weeks ago I changed water in my spa pool Hotspring Hotspot SX. When I filled it up I didn't tighten the drainage valve enough so it started to leak. I discovered it first when the tub was half empty. When I filled it once again and turned it on it only run för approx. 50 seconds before the mainswitch turns off. I've tried to start it 5-10 times every day but it continue to turn off the after 40-50 seconds. Can it be some fuse inside the tub that I have to change?