This video describes a simple and easy one man procedure to test if your coil is firing properly.1  Autos & Vehicles.2  Standard YouTube License.his video describes a simple and easy one man procedure to test if your coil is firing properly. 1  Autos & Vehicles. 2  Standard YouTube License.
1 Under normal conditions the hot tub GFCI circuit breakers should should be checked using the TEST Button, and then reset normally. 2  Typically a hot tub GFI Breaker will last for several years under ideal conditions. I filled the tub with fresh water and hit the breaker. 2  You can hear electrical noise in breaker like it is shorting, then breaker kicks off. 3  Even if there was a short in the spa, the breaker should just kickoff without the noise. 4  It sounds like two wires arcing, there is no smell and the breaker is not melted.
1 Now power the hot tub off, refill to the original level, and let sit for 24 hours. Note the level of the dropped water.  If the water dropped equal amounts each time, chances are your leak is either in the shell or the jets (vessel leak).