jandy 121 error code

1 Answers

Write Your Answer

A 121 error can occur for a number of different reasons: dirty cell, damaged cell, bad cell cable, low salt level, cell wearing out due to age, or damaged power supply. I have a couple thoughts… 1) First, I would follow Jandy’s troubleshooting guide and perform voltage readings

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