inground 18x36 chlorine pool. balanced currently ~80F
14 yr old Jandy pool heater. 2500BTU heater started clicking and knocking upon plugging in. You can see it here:
https://www.youtube.com/watch?v=rS8RNcOlm_Y
We have new control board (3 weeks ago) New Flame sensor and ignitor in 2020
Ideas on what it is and how we can fix?
TIA
Pool heater making clicking/knocking noise
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