http://www.hottubworks.com/spa-repair-forum/ HotTubWorks Spa Repair Forum Tag: cal spa will not start en Sun, 21 Mar 2010 00:50:18 +0000 http://www.hottubworks.com/spa-repair-forum/topic/cal-spa-sn-display#post-279 Tue, 22 Sep 2009 11:38:46 +0000 Mary 279@http://www.hottubworks.com/spa-repair-forum/ <p>You can try unplugging the <a href="http://www.hottubworks.com/SpaParts/HeaterSensors.php">spa sensor</a> harness, wait a few moments and then plug back in. You would want to turn the power off before doing this. Usually a SN error code is signaling that one of the sensors is failing, but since you said that it was a possible lighting strike then your <a href="http://www.hottubworks.com/SpaParts/ElectricalCircuitBoards.php">circuit board</a> could have been damaged. </p> http://www.hottubworks.com/spa-repair-forum/topic/cal-spa-sn-display#post-277 Fri, 18 Sep 2009 14:38:01 +0000 Anonymous 277@http://www.hottubworks.com/spa-repair-forum/ <p>My Cal Spa will not start (possibly following a close lighting strike) I get a "Sn" display reading but tub will not turn on. Any suggested diagnostics I can do? </p>