Winty85 Posted June 22, 2022 Report Share Posted June 22, 2022 Hi Just refilled our hotub and all was good. Got the chemicals all set up and left it to heat up. Came back and the lights were flashing red and it had a SN2 code? Any ideas Thanks!! Quote Link to comment Share on other sites More sharing options...
CanadianSpaTech Posted June 23, 2022 Report Share Posted June 23, 2022 The SN2 error code indicates that the hi-temperature sensor in the heater or the water temperature sensor is malfunctioning. Start by removing the filters. Take them out of the equation. If there is a flow restriction the hi temp sensor might pick that up and send error. Make sure there is sufficient water flow from the circ pump and that there are no air locks in it. Look at your flow switch and you will see if the water if flowing through it correctly. 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.