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I just bought my house. I have all electric baseboard heat. One of them has started to make this high pitch humming noise. I cant find anything to identify what type of heater it is, nor do I know how

Its a sentinel electric baseboard. The house was built in 1984. I have a total of 7 of these in my home and the only thing I can find to identify it is a small tag with the name sentinel on it. The loud humming noise started last night. But it doesn't happen all the time.

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  • 166 Answers

Could be just an AC hum do to time and previous heating expansion/contraction altered it's characteristics.
You could [this is a crude way} just kick it to see if that stops the humming other then that completely dismantle it and reassemble it tightening the connections and support structure
I don't know what your heating/electric bill is $$$$ but my experience it's cheaper to heat with some other form of energy and in case of power outages you can heat your house using a generator where as electric heat you can not

Posted on Nov 14, 2014

  • jessica kjerstad
    jessica kjerstad Nov 15, 2014

    Kicking it, lol like you suggested stopped it for a short while. So I did end up pulling it apart. Turns out it, there was a screw missing out of the center support bracket. I cleaned it out since it was already apart. I forsee myself, taking them all apart in the near future. This one was not hung on the wall very well. I am hoping in the future to replace the current heating in my home with something that will not rob my pocketbook. Thank you for the help!

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Posted on Jan 02, 2017

hotuna
  • 288 Answers

SOURCE: Electric baseboard heater

You need a meter, it will be hard without this! If you have 220v in the wall, then think of it like this; each wire is 120v. Test to each other, you get 220v. The thermostat is a double pole, you said. So think of it like this, its an adjustable temperature controlled switch that lets electricity through at the temp. you set it at. If you have 120v from one wire connected to one end of the element, and the other 120v connected to the other end of the element, then it will work. DO NOT CONNECT THE 120V TOGETHER. IT MUST GO THROUGH THE ELEMENT FIRST. The thermostat should be between the power from the wall and the element, to control the temperature.

Posted on Jan 09, 2008

  • 1 Answer

SOURCE: 2000 watt baseboard heater is making loud clicking noise

Most base board heaters installation instructions say to attach to the wall with screws which are slack ( not fully tightened) in order to allow the heater case to expand and contract otherwise you get a clicking noise

Posted on Oct 31, 2008

advacak
  • 125 Answers

SOURCE: electric baseboard heater hums while running

is a 60 cycle hum, resonating with the power. check screws that mount it nothing to really worry about

Posted on Dec 31, 2008

  • 1 Answer

SOURCE: Fahrenheat F25408 Electric Baseboard Heater noise

Check model and voltage of heater to be sure your heater voltage is compatible to the voltage supplied.

Posted on Oct 26, 2009

shastalaker7
  • 1515 Answers

SOURCE: Good day, I just moved into my new home on August

It sounds to me that the motors on the units in question, may need a few drops of oil on the bearings. I have seen motors in these heaters and most do have a place to oil them, they wouldn't have sealed bearings as the newer motors.Check the blower wheels also for dirt build up on the blades, as this will cause them to be out of balance and cause some noise also.
Sincerely, shastalaker7

Posted on Oct 30, 2009

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Good day, I just moved into my new home on August


It sounds to me that the motors on the units in question, may need a few drops of oil on the bearings. I have seen motors in these heaters and most do have a place to oil them, they wouldn't have sealed bearings as the newer motors.Check the blower wheels also for dirt build up on the blades, as this will cause them to be out of balance and cause some noise also.
Sincerely, shastalaker7

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