Ståle Wikdahl Posted February 10, 2020 Report Share Posted February 10, 2020 I have an Arctic Spa Alaskan, with periodic errors, suddenly the temp goes up to 42-43 degrees Celsius. Is there a fault with the thermostat or motherboard? or something else ? Any tips ? Quote Link to comment Share on other sites More sharing options...
Splashman Posted February 12, 2020 Report Share Posted February 12, 2020 If I remember right the temp sensor is tucked in the hot tub shell maybe on the left side. Memory little fuzzy on Arctic been a while. You can check the ohms on the sensor to see if that is the problem. To be honest I have replaced every single board at some point that I have come across from arctic. Are you getting any error codes? When I covert it over to Fahrenheit you are getting 104 degrees or more? When it gets to the temp did you check the water with a separate thermometer? To make sure the water is getting that hot. Also I have seen the temp sensor on the heater under a metal plate. Quote Link to comment Share on other sites More sharing options...
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