A pressure switch is actually a device that is actually configured to sense an adjustment in a particular tension on a product and then react in a particular manner. Pressure switches are utilized on many devices such as electric and gas heaters, pumps, little air compressors, electric strip heaters, food stuff processing equipment, as well as of course on many hot tub heaters.
When it comes to your hot tub, the pressure switch (in addition frequently made reference to as a flow switch), produces sure that water is flowing while the heater is on so that in the event water is not flowing the heater will certainly not really over heat, and burn itself up. It is a safety element that keeps the heater from turning on when there is actually in no way water flowing. The switch senses water pressure as well as if the pressure is actually where it should be actually the switch performs the circuit of electricity to the heater.
If you are actually having trouble with the spa heating or heating insufficiently, the trouble may not be actually with the heater. It could be a pressure switch issue. If the pressure switch is actually in no way working properly it could cause the water in no way to heat, yet always produce sure you have water flow because the spa not really heating could at the same time just be the pressure switch executing its job.