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Author Topic: When do i know my circulating pump needs to be replaced  (Read 1590 times)

RJ1968

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When do i know my circulating pump needs to be replaced
« on: December 11, 2014, 07:35:20 PM »

2nd season with my Shaver furnace, everything has been going great until tonight.  My circulating pump on my furnace quit working, it was working this morning but when i got home it was off & steam was coming out of the overflow tube on the side of the furnace(i could hear the water bubbling).  The unit is approx 5 years old, but i have heard pumps should last pretty long, could the water getting too hot have an impact on the circulating pump working?

Thanks in advance for any advice..
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RJ1968

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Re: When do i know my circulating pump needs to be replaced
« Reply #1 on: December 11, 2014, 08:42:58 PM »

i think i might of found the problem, my damper door was slightly cracked open..  too much air probably got in & caused the rise in temp(as i have never had this issue before)..  pump is still too hot, waiting till the morning to see if it will cool off & start working again..
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CountryBoyJohn

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Re: When do i know my circulating pump needs to be replaced
« Reply #2 on: December 12, 2014, 05:40:07 AM »

Yes, steam is hard on your pumps.  I had a boil over a few weeks ago and I had one of my pumps not running when I arrived and the other was making some terrible noises!  But, after getting the water temp back down, both of them fired back up.  Good luck!
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LittleJohn

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Re: When do i know my circulating pump needs to be replaced
« Reply #3 on: December 12, 2014, 06:22:04 AM »

Luckily never had to deal with a STEAM-OVER, but the two hardest things on pumps is AIR and DIRT. 
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RJ1968

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Re: When do i know my circulating pump needs to be replaced
« Reply #4 on: December 12, 2014, 08:20:17 AM »

Thanks for the repy CountryBoy & LJ, pump is still hot to touch this morning & not working..  i was able to turn the screw in the back of the pump so hopefully it is just a matter of it cooling down, will update later today to see if that did the trick..

i did end up ordering a pump today from grainger, it was stainles steel vs cast iron(the one i have now), wont be here for a few days, but hopefully it will just serve as a backup for later...

Thanks again guys..
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RJ1968

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Re: When do i know my circulating pump needs to be replaced
« Reply #5 on: December 12, 2014, 02:35:37 PM »

Well it looks likes it good thing i ordered the new pump, i let the existing pump cool down to touch, restarted it & it does do anything but hum & get hot, i think its fried..  new pump will be here on tuesday i am told..
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LittleJohn

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Re: When do i know my circulating pump needs to be replaced
« Reply #6 on: December 15, 2014, 06:13:30 AM »

You technically only need a Stianless Steel or Bronze pump if your system is open, otherwise you can get away with a Cast Iron pump -> for future reference

Too bad about the pump right before Xmas and all
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Coach

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Re: When do i know my circulating pump needs to be replaced
« Reply #7 on: March 04, 2015, 07:05:40 PM »

I had a pump go bad on me a year ago.   It started making a whining noise.....just got louder and so I figured I had better replace it.  Does anyone know if these pumps could be rebuilt?  is it worth it?   
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LittleJohn

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Re: When do i know my circulating pump needs to be replaced
« Reply #8 on: March 05, 2015, 08:39:04 AM »

In most case NO, not worth rebuilding; Grundfos 15-58 about $85 or Taco 007 about $80, for new off the shelf pumps.  In most cased you just need to replace the pump head or cartridge, not the whole body including the valute

SS & Cast iron are more likely to start around the $150 range MINIMUM, again depending on size.  A Grundfos 26-99 3-speed (seems to be a favorite around these parts), in bronze is around $375, in cast iron its around $260
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mlappin

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Re: When do i know my circulating pump needs to be replaced
« Reply #9 on: March 05, 2015, 10:25:23 PM »

You technically only need a Stianless Steel or Bronze pump if your system is open, otherwise you can get away with a Cast Iron pump -> for future reference

Too bad about the pump right before Xmas and all

Technically yes, in the real world not so much. Had 14 years on a Grundfos 26-99 cast iron pump before switching it out for a Taco Delta T, took it apart and no discernible wear on the housing or volute.
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