Noise from circulating pump
#1
03-30-08, 02:15 PM
Noise from circulating pump
Hey,
I will apologize before hand for any lack of information and misunderstanding as I am pretty much a neophyte. About a month ago I noticed a loud rattling noise coming from my heating system, localized to the circulating pump, it was intermittent, about once a day for 15 minutes at a time. Also, the heating zone up stairs wouldn't work(a problem that has been going on for a few months and was going to address in this summer). So, I finally had a plumber come take a look at it this passed Tuesday and he installed a new circulating pump and a 9d black flow. The 9d back flow was replaced because he said that the water wouldn't enter the system and the old 9d was clogged. The noise stopped and the upstairs heating zone that hadn't been working was finally providing heat again! Unfortunately the noise came back again, today. It's extremely loud, I can hear it upstairs almost like a drill running. I would appreciate some help. I have provided a link with some pictures, hopefully they can help. If you need anymore specific pictures I'll provide them and try to answer any question about what kind of system, I have to the best of my ability.
http://s299.photobucket.com/albums/m...afilter=images
I will apologize before hand for any lack of information and misunderstanding as I am pretty much a neophyte. About a month ago I noticed a loud rattling noise coming from my heating system, localized to the circulating pump, it was intermittent, about once a day for 15 minutes at a time. Also, the heating zone up stairs wouldn't work(a problem that has been going on for a few months and was going to address in this summer). So, I finally had a plumber come take a look at it this passed Tuesday and he installed a new circulating pump and a 9d black flow. The 9d back flow was replaced because he said that the water wouldn't enter the system and the old 9d was clogged. The noise stopped and the upstairs heating zone that hadn't been working was finally providing heat again! Unfortunately the noise came back again, today. It's extremely loud, I can hear it upstairs almost like a drill running. I would appreciate some help. I have provided a link with some pictures, hopefully they can help. If you need anymore specific pictures I'll provide them and try to answer any question about what kind of system, I have to the best of my ability.
http://s299.photobucket.com/albums/m...afilter=images
#2
03-31-08, 06:15 PM
Forum Topic Moderator
Join Date: Jan 2005
Location: Delaware, The First State
Posts: 12,667
Received 39 Upvotes
on
37 Posts
Noise
First let me thank you for the pictures.
Since the job was done less than a week ago, I suggest you call the service company back & let them know the noise is back. It would seem the servicer either missed diagnosed the problem or didn't fully address it. In most cases the labor shouldn't cost you anything unless another part is involved & even then it becomes a gray area.
Since the job was done less than a week ago, I suggest you call the service company back & let them know the noise is back. It would seem the servicer either missed diagnosed the problem or didn't fully address it. In most cases the labor shouldn't cost you anything unless another part is involved & even then it becomes a gray area.
#3
03-31-08, 07:33 PM
Thanks for your prompt reply, and hopefully the pictures were of some help. I did call the plumber back and notified him that the noise returned, to which he replied that there is nothing he can do unless the noise is present during his visit. The noise only returned one day, so far, and the heating system itself is still functional(all zones working and baseboards heating in the appropriate time). Also, I had another plumbing/heating repairer come by just today and he pretty much told me the same thing: that the system seems to be functioning at present with no issues and cannot determine the problem unless the audible noise is emanating during their visit. So, do I just wait until the noise is constant? The original plumber said that he would charge me for the labour only but the pump has a 1 year warranty. That seems illogical that he would try to charge me labour for mis-diagnosis, as you stated Grady. What course of action do you think I should take?
#4
04-01-08, 03:52 AM
Forum Topic Moderator
Join Date: Jan 2005
Location: Delaware, The First State
Posts: 12,667
Received 39 Upvotes
on
37 Posts
Noise
Being in the service business myself, I know well how difficult it is to fix an intermittant problem.
At this stage about all I can suggest is to try to determine if the noise occurs at a certain time or under certain conditions. Some examples might be: It happens when the thermostat is turned up to recover from a night set back; It happens just before the thermostat is satisfied; or any such pattern. If you can determine a pattern & especially if you can duplicate it, the service person at least stands a chance. Each time it happens, write down notes & be sure to include the boiler temp & pressure as well as things like if other zones were calling or had just shut down.
At this stage about all I can suggest is to try to determine if the noise occurs at a certain time or under certain conditions. Some examples might be: It happens when the thermostat is turned up to recover from a night set back; It happens just before the thermostat is satisfied; or any such pattern. If you can determine a pattern & especially if you can duplicate it, the service person at least stands a chance. Each time it happens, write down notes & be sure to include the boiler temp & pressure as well as things like if other zones were calling or had just shut down.
#5
04-14-08, 10:57 AM
noise
I had this problem a few years ago. All the pump needed was some 3-1 oil. Noise gone. You need to do this every year before you begin to use your furnace. At the top of pump there is a very small cap that you just hold open and pour some 3-1 in. Done. Sorry you had to spend money on a new pump you probably didnt need.
#6
04-14-08, 02:54 PM
Join Date: Mar 2006
Location: Wet side of Washington state.
Posts: 16,321
Received 38 Upvotes
on
30 Posts
How do you know what kind of pump was originally installed and that it needed to be oiled?
The NRF pump that is shown in the pictures does NOT need to be oiled and there is no place to add any oil.
The NRF pump that is shown in the pictures does NOT need to be oiled and there is no place to add any oil.
