Noisy Wilo CH pump

Ian James · Posted: Sun Nov 25, 2007 9:46 am Post Subject: Noisy Wilo CH pump

I have replaced a burnt out circulation pump, no leaks and the heating is working throughout house. Problem I have is that the noise level emited from the pump has greatly increased to previous. I replaced a grundfos UPS 15-60 pump with a Wilo Gold RS 60. Suitability to change the Grundfos with this model of Wilo is stated on the packaging. My question is: What can I do to reduce the noise (or what have I done wrong to that has cause the increase) or is the increased noise synonymous with this brand of pump?

chrishutt · Posted: Sun Nov 25, 2007 10:38 am Post Subject:

A Wilo pump shouldn't be any noisier than a Grundfos. Have you vented air out of the spindle? Did you drain the system when you changed the pump? Have you fully opened the isolating valves either side of the pump? Do not run the pump if it is very noisy - it may be suffering damage.

__________________
Let's face FAQs.

Agile · Posted: Sun Nov 25, 2007 1:21 pm Post Subject:

What setting was the Grunfoss on?

What setting have you oput the Wilo on?

Setting 2 is normally adequate unless there is a fault.

A "60" is only required for larger installations, do you really have such a large house with a 30 kW of heating?

Tony

eddg · Posted: Sun May 25, 2008 6:09 am Post Subject:

How do you "vent air out of the spindle" on the pump?

Agile · Posted: Sun May 25, 2008 11:42 am Post Subject:

You read about it in the FAQ onn this site!