Low flow in your spa or hot tub is most commonly associated with a dirty spa filter. If your spa heater won't heat, remove and clean the filter(s) rule out a pressure or flow rate problem. Low water level, a clogged pump impeller, closed valves, clogged pipes or blocked spa drain covers can also cause flow issues.
How to Troubleshoot a Hot Tub Heater. Last Updated: October 15, 2015 Subscribe to our weekly pool maintenance newsletter! Is your hot tub heater not .
"My spa will not heat" is the number one complaint we hear, it accounts for. is working properly (i.e. spa is set in the heater/filter cycle and water is flowing from
If you suspect that your spa heater is not working properly, there are a few steps you can take to determine what the problem might be. Make sure that you give .