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Posted: 1/19/2021 12:04:22 PM EDT
 The water circulating motor in the middle runs for a few seconds and then quits running even though it still has power to it. The others run properly. The motor in question is leaking oil from the front when I add oil. If I can fix this myself I will. If not I will call somebody in. |
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Posted: 1/19/2021 12:17:00 PM EDT
[#1]
Have you checked to see how many amps the motor is drawing?
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Posted: 1/19/2021 12:19:17 PM EDT
[#2]
Quote HistoryQuoted: Have you checked to see how many amps the motor is drawing? I have not. What will that tell me? I have a history in this kind of thing but it has definitely been a while. Says it's a 17 amp motor. I'm going to get a different meter. |
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Posted: 1/19/2021 12:46:48 PM EDT
[#3]
If the bearings are bad it could be tripping the thermal protection.
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Posted: 1/19/2021 12:48:23 PM EDT
[#4]
it means several 100's of bucks
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Posted: 1/19/2021 12:50:27 PM EDT
[#5]
Looking at the age of that pump/valving, and depending on system temps you can get into some serious hot water trying a DIY. Maybe time to call a pro to stay on safe side.
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Posted: 1/19/2021 12:54:51 PM EDT
[#6]
Quote HistoryQuoted: If the bearings are bad it could be tripping the thermal protection. Thermal protector is what I was thinking. Going to let it cool while I go get an ammeter. |
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Posted: 1/19/2021 12:55:50 PM EDT
[#7]
Quote HistoryQuoted: Looking at the age of that pump/valving, and depending on system temps you can get into some serious hot water trying a DIY. Maybe time to call a pro to stay on safe side. WTF is wrong with you? We’ll never get any epic threads with that attitude. |
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Posted: 1/19/2021 12:57:32 PM EDT
[#8]
Quoted: https://www.ar15.com/media/mediaFiles/418060/IMG_20210119_095638254-1786411.jpg The water circulating motor in the middle runs for a few seconds and then quits running even though it still has power to it. The others run properly. The motor in question is leaking oil from the front when I add oil. If I can fix this myself I will. If not I will call somebody in. |
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Posted: 1/19/2021 1:01:38 PM EDT
[#9]
My old house had. Similar set up.
Have you ever oiled the pump? My system was around 55 years old and I never had any pump or motor issues (not saying you don't). |
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Posted: 1/19/2021 1:03:48 PM EDT
[#10]
Makes my Taco pump look small! It lasted 20 years, changed it a few years back. Can you find a replacement motor? Mine was an easy swap. Is there a pump for each zone? If so, do the other zones all work?
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Posted: 1/19/2021 1:08:41 PM EDT
[#11]
Quote HistoryQuoted: Need new pumps. Are you just guessing? |
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Posted: 1/19/2021 2:00:04 PM EDT
[#12]
You can probably have the pump and or motor rebuilt.
Iirc, DC Armature rebuilds motors and pumps. Google the topic for more options. |
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Posted: 1/19/2021 2:11:02 PM EDT
[#13]
Bell&Gossett pump?
You may be able to get a rebuild kit for the pump from grainger. |
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Posted: 1/19/2021 2:31:08 PM EDT
[#14]
You probably need the SBA for the B&G pump, the sealed bearing assembly
https://youtu.be/eGeF8D6QEbQ https://youtu.be/TGeofwFLUJc |
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Posted: 1/19/2021 2:38:15 PM EDT
[#15]
Leaking oil from those is normal. Nothing you replace those pumps with will last as long.
Check the controls. The contacters and relays that turn that pump on |
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Posted: 1/19/2021 2:45:56 PM EDT
[#16]
That's the old style cloth covered romex! Pretty sure you got your money's worth out of it.
Figure out what you have, look up something with similar specs in the Grainger catalog and order it in. I doubt the part number is still valid because of age, it might cross-reference. |
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Posted: 1/19/2021 2:55:40 PM EDT
[#17]
Go to supplyhouse.com and buy an equivalent pump and gaskets. Install new pump. Examine old one for parts availability and potential for rebuild to have a spare.
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Posted: 1/19/2021 2:55:56 PM EDT
[#18]
Don't fool with components, motor, bearing assy, mounts, coupling........
Replace it with a B&G mini pump. 
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Posted: 1/19/2021 4:09:09 PM EDT
[#19]
Quote HistoryQuoted: Don't fool with components, motor, bearing assy, mounts, coupling........ Replace it with a B&G mini pump. https://external-content.duckduckgo.com/iu/?u=http%3A%2F%2Fthumbs1.ebaystatic.com%2Fd%2Fl225%2Fm%2Fm09tuKG3lFYgeVP0hSKr-2Q.jpg&f=1&nofb=1 This is the answer ^ The pump you have is a Series 100 B & G. They have basically remained unchanged since around 1949. Good pumps but their time is over. The newer wet rotor pump ( pictured above ) is sealed and does not require oiling. The flange to flange distance will be the same so there will be no piping changes. |
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Posted: 2/3/2021 8:28:04 PM EDT
[#20]
Lol sorry man... Training DIY’ers was never my strong suit. I’ve seen “pro’s” hobbled by hot water accidents from a momentary lapse of safety.
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