Question 1

What does FL1 mean on my spa?

Accepted Answer

FL1 means your spa is detecting low water flow. The most common cause is a dirty filter cartridge or a blocked circulation pump impeller.

Question 2

What does FLO mean on my spa?

Accepted Answer

FLO means your spa flow switch is not detecting adequate water movement. Check your filter first, then inspect the flow switch and circulation pump.

Question 3

What does OH mean on my spa?

Accepted Answer

OH means your spa water temperature has exceeded the safe limit and overheat protection has activated. Turn off the spa and allow it to cool before investigating.

Spa Troubleshooting Guide

Error codes

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