I got home from vacation to find my hot tub completely shut down. Investigation showed the on/off switch contacts fused together and the wire between the switch and the Ground Fault Detector burned out. The casing on the GFU was also melted. I took ohms readings on my pump motor to determine if it is OK. The readings I took were as follows. 0 ohms on the meter read 0.4 – White to Black leads read 1.4 ohms, White to Yellow read 1.3 ohms and Yellow to Black read .4 ohms. Are these good readings or do I have a motor problem? It seems I have to replace the on/off switch every 3 – 4 years because of this problem.
