What does sn mean on hottub?
A: Sn error code means there is a problem with temperature sensors in the heaters. They typically mean that the temp sensor or the high limit sensor is shorted or open. In addition, there could be issues with the thermostat or the voltage, which can cause overheating.
Why does my Spa have an error code SN?
Here’s a Cal Spa troubleshooting chart for when your spa topside display shows a sensor error code Sn, Sn1, Sn2, Sn3… As you can see, it could be a nuisance tripping, or the wires could be absorbing excess heat, need calibration, or simply be faulty.
What is the error code for a spa heater?
Heater disabled but the spa is operational. PSoC = Pressure switch open with circulating pump. PSoL = Pressure switch open with low pump. PSoH = Pressure switch open with high pump. ToE = Time out error. Rare system error. Spa unusable. Contact ACC. OHH = Overheat. Spa has shut down. One sensor has detected 118º Fat heater. OHS = Overheat.
What is the error code for a temperature sensor?
The error codes above are related to a temperature sensor failure, overheat problems or a flow problem.
What are the error codes for the high limit sensor?
Spa Error Codes: Sn, Sn1, HL, E2, E3, Prh For these trouble codes, the high limit sensor is open or shorted. It could be a loose plug connection or bad wire, or it could be a problem related to water flow.
Here’s a Cal Spa troubleshooting chart for when your spa topside display shows a sensor error code Sn, Sn1, Sn2, Sn3… As you can see, it could be a nuisance tripping, or the wires could be absorbing excess heat, need calibration, or simply be faulty.
Heater disabled but the spa is operational. PSoC = Pressure switch open with circulating pump. PSoL = Pressure switch open with low pump. PSoH = Pressure switch open with high pump. ToE = Time out error. Rare system error. Spa unusable. Contact ACC. OHH = Overheat. Spa has shut down. One sensor has detected 118º Fat heater. OHS = Overheat.
What causes a spa temp sensor to error?
However, the usual cause for spa temp sensor error codes is that the water flow is insufficient, and when water moves too slowly through the heater, it doesn’t remove the heat fast enough, which triggers all sorts of error codes for flow rate and overheating. HOT, OL, HL, FLO, Sn…
What does Sn3 mean on a spa heater?
Sn3, HL, EO, E2, E3, Prh, Prr – these all refer to the heat sensors that are usually attached to your heater manifold. Inspect the wire and plugs, check the spa water level and make sure water is flowing free and fast.
