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.
They can last as long as 20 years, where tank style water heaters have a life of closer to 12 years. The drawback of a tankless water heater is that it can only heat so much water at any given time. So in households with many people, a tankless water heater can leave a lot of people with a cold shower in the morning.