I have a dynasty spa with a balboa vs501z spa pack. I noticed this week my spa was cold and the breaker had blown. I reset the breaker and the display lit up but the pumps did not work. It was flashing a code sn which is for the m7 sensors. I have tested the heater with an ohm reader and it's testing ok. After testing the breaker blew again now the display and and breaker won't stay on unless the heater is disconnected. I'm really lost on this one any ideas out there would help
