You’ve just filled up your hot tub and turned on the power, you can hear the motor running but the jets aren’t working. You may be getting some sort of “FLO” reading on the controls. What's happening?
Chances are your spa pump has an airlock and needs to be purged. You may be able to get the air out of the pump by cycling the jets on and off a few times. However, if that doesn’t work you may have to manually prime the pump. Check out Jasyn's video explanation below.
Here's How to Prime a Hot Tub Pump
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