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5150 Joker · 07-27-2005, 06:48 AM

For no reason my 6 month old D4 pump starts making a whiney pitch like something is rattling inside it and then after a few minutes it goes silent again and repeats the cycle. It wasn't doing this for the 1.5 weeks I had it running prior to this when I replaced the water in the system. Is this a sign of a failing pump or could some bubbles in the system be causing this to happen? If they are bubbles, why would it start happening now and not before?

Thanks.

07-27-2005, 06:48 AM	#1
5150 Joker Cooling Neophyte Join Date: Oct 2004 Location: Davis, CA Posts: 2	Question about pump faliure For no reason my 6 month old D4 pump starts making a whiney pitch like something is rattling inside it and then after a few minutes it goes silent again and repeats the cycle. It wasn't doing this for the 1.5 weeks I had it running prior to this when I replaced the water in the system. Is this a sign of a failing pump or could some bubbles in the system be causing this to happen? If they are bubbles, why would it start happening now and not before? Thanks.