It sounds like a humming noise when the pump is running and gets louder after a few minutes.
The radiators work fine and so does the boiler.
The pump is about 2 weeks old and is on the fatest setting.
Any ideas what is causing this noise.
2007-02-15 05:00:53 · 7 answers · asked by Drop the donkey 2 in Home & Garden ➔ Maintenance & Repairs
its because you have it on the fast setting and or you have some air in the system
2007-02-15 05:05:04 · answer #1 · answered by Anonymous · 1⤊ 0⤋
Hope that's all fixed now. If I ever have a problem like that I'd recommend getting some quotes from a number of local gas engineers. I did just this, and went with STL Heating and Energy who are north west based - because their prices were the cheapest but going from the reviews on their website - I knew they were a decent firm.
2015-01-07 23:57:02 · answer #2 · answered by Paul 2 · 0⤊ 0⤋
Turn your pump down a notch and check for air trapped in the pump.To do this. unscrew the cap on the centre of the pump and any air will bubble out. You may have to turn the pump down 2 notches as long as it doesn't affect the heating. Vent the pump with the boiler off.
2007-02-15 06:35:41 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Put it at a slower speed, bleed any air off (from the big screw on the end cover) make sure it's in the right orientation. i.e. The screw should NOT be below the horizontal line.
Download and read P2 of this Grundfos document, it applies to most types of domestic heating circulators.
http://net.grundfos.com/Appl/WebCAPS/WebCAPSFrontCtrl;jsessionid=0000Y61bOE2DhsDOSGUiPmYo1lv:-1?forwardto=literature/litdetailframe.jsp&cmd=com.grundfos.webcaps.literature.commands.LiteratureDetail&documentid=700&litlanguage=ENU&typecode=S100FAM&appcode=HEATING&pdfid=1229
2007-02-15 06:28:29 · answer #4 · answered by jayktee96 7 · 0⤊ 0⤋
after a while when the bearings set in, the noise should dissipate, if it doesnt you may need to have the installers return for new adjustments in the settings
2007-02-15 05:10:36 · answer #5 · answered by robert r 6 · 0⤊ 0⤋
air lock open the screw
on the front a little when
it is running you hear
it go quieter tighten
the screw up good luck
2007-02-15 05:08:30 · answer #6 · answered by S Csparky 6 · 0⤊ 0⤋
you need to get in touch with the engineer and at least ask him on the phone first, then he can come out if it isn't normal
2007-02-15 05:04:33 · answer #7 · answered by quornandwafflesagain 4 · 0⤊ 0⤋