DIY Doctor

Honeywell Control Valve Buzzing and the Motors Hot

Postby rhaynes » Wed Oct 24, 2018 4:06 pm

Hi folks, new to the forums. I have an electric boiler pumping hot water to a 5 zone system in my house. One of the control valves stopped responding a couple of years ago and was replaced. Now the same control valve has an intermittent buzzing sound and the motor seems to be constantly really hot. A plumber (should have done it myself!) replaced the motor this morning. I got the feeling that the heat in that zone was not what it used to be as well. Any other suggestions?
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Postby rhaynes » Wed Oct 24, 2018 11:35 pm

Unfortunately the replaced motor is still very hot to the touch - doesn't seem to have fixed the problem...
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Postby brentpham » Tue Mar 05, 2019 8:54 am

Hi folks,

Do you have any solutions for now?
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Postby johnnyb0007 » Fri Jun 07, 2019 7:34 am

This might help others to help understand how the Central heating system works in an animation.
https://www.youtube.com/watch?v=frfHogvSrRg&t=179s
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