Heated Circulator
Heated Circulator
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Boiler circulator pump?
So the circulating pump on my heating boiler wouldnt go. It kept trying to go then stop- so it was overheating. Shut down the boiler and let it cool- then restarted it, and the pump was making an awful sound. So I shut it off, went and got a new bearing assembly for the pump and put it on. No problems, everything worked- for awhile, then the same thing happens again. Pump gets hot, and shuts down.
There is water is the system and I bled any air out.
Any ideas from professionals?
Its a BG pump, and I kept it oiled
the 2 zone valves were open, and they're open manuelly now
need to know what kind of pump that is very important so we can get a better idea where to go. things to look at are the valves open going in and out of that zone,if it has zone valves make sure that they are open temp of water in boiler some pumps are only good to 210 deg f . let me know this should be any easy fix. good luck. ************* i think you have bad bearings in the motor not the pump head pull the motor off and see if spins free and should not have a lot of end play pull on motor shaft front to rear to check end play it should spin very easy make no noise at all the old two piece pumps are not as dependable as the new cartridge style pumps my want to think about upgrading if the old motor is the prob they can be repaired or replaced.you also said you replaced the bearing unit did you seat the seal before you put on the impeller ? some bearing unit the seals are not all the way in that could also be a problem.if these don't work let me know.