PROTECTING YOUR SPA FROM DAMAGE DUE TO FREEZING
In the winter when temperatures drop below freezing it is a good habit to check your spa every day or two to make sure it is functioning properly. If you don’t want to go outside to check it then using a wireless digital thermometer with an indoor remote display will tell you if the temperature in the spa is dropping.
If the spa is not heating and there is an error message such as “ flo” ,”fl”, or 3 dots flashing on a digital keypad or the heat indicator light on older spas is won’t come on, then there is a blockage in the water flow. Try removing the filter cartridges, if this corrects the problem then clean or replace them. If this does not correct the problem then shut off power to the hot tub for 10 or 15 minutes then turn back on. If this corrects the problem continue to watch the spa closely to make sure it doesn’t happen again. If it doesn’t clear the error then call Pro-Tech Pool and Spa Service for an appointment for a service call. Put a small heater under the cabinet in the equipment area to prevent freeze damage.