How do you fix an E90 code on a hot tub?

1 Answers

Write Your Answer

If the E90 code appears after running for a while: Check and ensure there is no debris inside the spa tub inlet and outlet grids. If there is debris inside, turn the control unit off, unscrew the spa inlet/outlet grid with a Phillip screwdriver. Clean and replace it back.

No video Answer Now
Was this helpful?
Do you wish to get the latest heat pump news, technology, markets, and discounts? Subscribe Now!
Would love your thoughts, please comment.x