i have a 4 person spa made by 'Strong Spas'. The last owner told me that i could plug the spa into an outlet made for 120 voltage. I've had it working fine for about 2 months, and it stopped working the other day. i read about this spa, and the owner's manual recommend 240 voltage. The spa will not turn on. I have tried flipping the circuit breaker switch a few times, and it won't come on. When this first happened, i flipped the breaker, and it came back on, but turned later on that night....any advice on what to do at this point? does it sound like i just need to increase the voltage on my outlet? any help would be greatly appreciated....