Top 10 Circulator Pump Problems Found on Boilers!

10 Problems that Occur in Boilers that are the Circulator Pump or a Related Problem that the Circulator is Blamed for. I Discuss and Show Noise, Troubleshooting, Leaking Water, Bearings Locked, Testing the Motors, Capacitors, Air Locks, and Processes. Supervision is needed by a licensed HVACR Tech while doing this as Experience and Apprenticeship garners Wisdom and Safety.

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⚠️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided.
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For those that are looking for the tools used in the videos: (Linked Below)


Other tool links can be found in the video description section.

[danielbaldwin]

Excellent diagnostic and repair presentation. I was able to get major air pockets removed by the fill and bleed method and provide heat to the upstairs apartment. Thanks for saving me money, time, and wasted efforts.

[derrickherndon]

This was so incredibly helpful. Very thorough and clear. Last year I had an impeller that was stuck. Manually turned it to free it. This year it was a sticky relay (problem #6). Thought at first it was air in the lines as I turn off water to that heater in the summer so that hot water is not always providing a heat source in that room. Drained the line but no joy. Pump not running but impeller turning was the hint. I just tapped the relay after removing the cover and the pump engaged. Will see if the relay returns to normal switching. This is a Grundfos pump with the access port as shown above. Thank you so much for helping us DIY home owners.

[tongyang]

thank you so much for all the tips. I'm a handy man but my expertise is in automobiles and carpentry. this probably saves me hundreds of dollars on my first personal diagnosis.

I don't have a fill valve but I do have two valves that fit a garden hose. One after the circulator and one on the bottom. I will try to fill it. last year it worked well but I could hear air in my system. thank you for giving me a chance at messing with it. something so simple but I just couldn't figure how to fill without a valve

[crooktube]

Great video! I ended up buying a new one, but with this video I had the confidence to do it myself and that saved me so much money and maybe even saved me from a new boiler this year! Just got quoted for a new boiler.... $20K!!! Cheers!

[catherinewalpole]

This video is comprehensive and easy to understand. Thank you!

[stephenalibozek]

Very good explanation of how to search for the problem 👍👍

[heatncool]

good video. nice! I've devoured your videos for the last year doing residential but since I got into commercial hvac, im working with boilers, cooling towers, vav boxes, water cooled condensers, chillers. Good video thnx!

[Unknown-qtcv]

Thank you so much. Amazing explanations and demonstrations. VERY helpful

[lalac]

Thank you for this. You just kept me from having to get up every hour and switch zones for my heat ;) bled the line and it works like a charm. ❤️

[kevinkamel]

Great presentation. Thank you so much for taking the time to create videos like this.

[jfmc]

Great video, you covered lots of issues clearly and quickly.

[rinamackeeman]

Really great video. You’re a good teacher

[jimmittler]

Excellent, thank you for covering everything

[Nokyai]

Excellent video and clear explanation! Thank you very much!

[integrity]

you covered everything, thank you, well done

[manismello]

You’re very welcome...I’ll keep In touch!

[mikeallen]

Great video. Excellent information. Thank you very much for posting! Looking forward to more.

[luiselizalde]

As always, very good quality videos, I really appreciate them. Thanks teacher. Keep making those videos.

[jashua]

Amazing information, keep up the good work master.