Hello, just filled the hot tub and replaced the filter. When I turned it on I'm getting a "flo" error. The pump sounds like it attempts to start but shuts off after 5-10 seconds...this continues every 3-5 minutes until I shut it off. Any ideas or suggestions?


Thanks!

first check if any gate valves are closed.
second; try turning the pump bearing.(on the back of the pump with a flat head screw driver).make sure pump is on.
if that doesnt work the last option will be changing the pump.