john shal Posted June 1, 2015 Report Share Posted June 1, 2015 hello, hoping someone can help me with this. Last year I had a new raypak heater installed for my inground pool. It worked perfectly. This year prior to opening the pool, I had to have the pump replaced. Now the heater is making a loud, high pitched whining noise. Any help would be appreciated Quote Link to comment Share on other sites More sharing options...
Pool Clown Posted June 10, 2015 Report Share Posted June 10, 2015 New pump may have an increased flow rate. Increased flow through the heater may be causing the high pitched noise you are experiencing. Did you have the pump replaced? or just the motor? Quote Link to comment Share on other sites More sharing options...
Dr. Spa Posted June 10, 2015 Report Share Posted June 10, 2015 I've also seen the exact opposite. Low flow through the heater, and the water just starting to boil, making all kinds of noise. Yup, sounds like some kind of flow issue. Quote Link to comment Share on other sites More sharing options...
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