Spa Pressure Switch Test

You now should have complete continuity 1.

Spa pressure switch test.

The pressure switch on a hot tub or spa is a pressure sensor that is mounted onto the heater housing or very close to the exit point of the heater. If the water level is lower than the jets the flow switch will not work. With no continuity turn on power to the spa and check pressure flow switch cord again. The spa s manual will indicate how many gallons the spa will hold and how high the water level should be to function properly.

If you test show 0 contnuity proceed to next step. Then measure across the 2 terminals on the pressure switch. This means that once the component a pressure switch in this case is disconnected from the main body the a c unit in this case you can test the pressure switch as you would any switch. Now let s find out how to test a pressure switch with a multimeter at the core a pressure switch is the same as any other switch.

Look at the water level in the hot tub. Note on balboa switches you can test the switch is working correctly by pushing it upwards and if the switch is leaking or heavily corroded replace it. The distance the switch is from the diaphragm is adjustable and that adjustment determines at what pressure the switch closes and. In most spa components resistance is good with exception to pressure switches no resistance is bad as it means that there is another path that the electricity is taking which usually means a defective component or cable and it could also pose a safety hazard where is the power loss going.

Most pressure switches are simply a micro switch and an air diaphragm. The pressure on one side of the diaphragm will deflect the diaphragm and actuate the switch. In a hot tub pressure is an easy way to determine flow rates through the pipes pump and heater. The greater the pressure the greater the deflection.

You can also use your multi meter to test resistance of lengths of wire or cable. To adjust the tecmark pressure switch screw inwards to reduce the amount of pressure required and on the balboa switch screw out to reduce the gap between the button and the switch. If you have any continuity your meter slows some values replace pressure switch. Tecmark 45 100 4010 spa controller pressure switch 2 0psi 4010p white 4 0 out of 5 stars 12 gecko spa hot tub complete heater 5 5kw pressure switch gasket sspa how to video.