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Another Pentair heater makes a high pitched noise.

Thread starter Wiri0302
Start date Jul 5, 2023

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Wiri0302

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Jul 5, 2023

johnsonps08 said:
I'm having a similar issue, reported over in this thread
Pentair Mastertemp 250 screaming/whining on ignite

I took the side cover off mine and it didn't help but putting my hand over the intake changes the sound. See here:

I’m having the exact same issue and it goes away when I cover the same. Did you find a solution?

ajw22

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Jul 6, 2023

Welcome to TFP.

Thermal regulator or gas pressures.

Your heater NG or propane!

What BTUs?

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