Pentair Master Temp 400HD Noise
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Posted

Hi, We have a Pentair Mastertemp 400HD pool heater. It appears that the noise is primarily coming from the exhaust when the booster kicks in every minute or so. The loud rumbling and gangling sound occurs for 2-6 seconds every 1-2 minutes. The noise level is in excess of 100dB. It resonates through our building and the neighbours which is quite annoying. Does anyone have any advice?

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Richard's picture
Tech, Pentair
This could be caused by low
Richard's picture
Tech, Pentair
Posted

This could be caused by low water flow, or there maybe an issue with the internal bypass. At this moment we would not be able to determine the issue without going through the troubleshooting process to determine the cause, I will recommend to contact us or your service technician to diagnose the issue, we can be reached at 1-800-831-7133.

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