Question about Fahrenheat Electric Convector Baseboard Heater, 240 Volt

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Properly installed electric baseboard heater won't work.

Baseboard electric heater installed properly, yet won't work.I have added a subpanel off the main service panel to add more capacity to my house. I have a 50Amp breaker and 8 guage wire going to the sub-panel, which is a Siemens. I have installed a 20 Amp 2pole breaker in the sub-panel and have run 12/2 heater red-sheathed wire to the wall thermostat, which is a Dimplex 2 pole thermostat. I have wired everything in accordance with the wiring diagrams. The Black and Red wires from the sub-panel are connected to the two red ''Line'' wires on the thermostat. Then I have run the 12/2 wire from the ''Load'' lines on the thermostat to the basedboard heater wires. The heater is a small 500W heater. I have tested all the wires with my neon tester and each power wire at every location shows that it is carrying 120 volts (240 total for both wires). However the heater will not go on. I have used a continuity tester to ensure the heater is working. I have even changed heaters and thermostats to rule out defective heaters and thermostats. I have even bypassed the thermostat and hooked up the 12/2 wiring directly to the baseboard heater and still no heat. I have moved the 20 Amp breaker on the sub-panel. Nothing seems to work. Any suggestions would be most appreciated.

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  • alanxtar Nov 23, 2008

    I hooked up a baseboard heater directly to the main service panel in the house (via the dryer outlet) and the baseboard heater heated up instantly. This leads me to believe that the reason the heater will not work off the sub-panel has something to do with the relationship between the Main Panel and the Sub Panel. The Main Panel is a different brand, but it should work fine. I also have installed other 15 Amp branch circuits for lights in the Sub Panel and they work fine.

  • Anonymous Jan 16, 2009

    110 volts to each side of the heater,but the heater does not heat up

  • Allen Neal
    Allen Neal May 11, 2010

    are any other 220volt loads being run off the new sub panel that are woking properly

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I am an electrician. You must measure the voltage across the black and red wires. Measuring each wire to the neutral will not cut it. If both your red and black wire are on the same phase the heater will not work.

To double check your wiring, measure the voltage across the two screws feeding your subpanel, they should be 240v or 208v depending on your power company. Then do the same at the breaker feeding your thermostat. Again it should read 240v.

If you have no potential across the screws it is possible that you installed an incorrect breaker. Not all breakers with two screws on them are 240v breakers. There is what is called a twin or split breaker that has two screws that are on the same phase. These are for wiring two 110v circuits, when you run out of spaces in the panel.

Double check everything. This is a relatively easy circuit to wire, even for homeowners. If the heater does not work them something is wrong so do not leave the circuit energized.

Posted on Mar 16, 2009

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Hi ,my name is Ravin,I wanted to know that the two hot wires white and red,you can use both of them in any sence on the left of soket up or down it will not make any contact.

Posted on Mar 07, 2009

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Do not forget the G ground.

Posted on Jan 23, 2009

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I would be looking at the connections on the 20 amp 2 pole breaker in the sub panel.

Is it a 'wire in' breaker' or a 'snap in' onto rails? If its a 'wire in' which terminals have you connected it to? The heater would never work if you have a wrong connection here. Make sure one pole is connected to the live or hot and one connected to the neutral or return.


Posted on Dec 03, 2008

  • Robert Jones
    Robert Jones Jan 20, 2014

    heater works fine. I haced moved it to different circut and cord sill gts hot

  • Robert Jones
    Robert Jones Jan 20, 2014

    Whenyou unplug the heater after it has been running, you can actually get burnt touching th plug in tip

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SOURCE: dimplex baseboard heater wiring

no does not matter but you must have a ground leg

Posted on Feb 24, 2009

muttandjeff
  • 359 Answers

SOURCE: Baseboard electric heater installed properly, yet won't work.

DID YOU CONNECT TO TH SAME END YOU TOOK OUT WHEN PAINTING WE ARE DOWN TO THE CONNECTION @ THE HEATER MAKE SURE THE OTHER END OF TH ELEMENT IS CLOSED WITH WIRE NUTS AND TIGHT , LIKE I SAID WE ARE DOWN TO THE HEATER CONNECTIONS SO LOOK THERE

Posted on Dec 23, 2008

mohammed387
  • 1952 Answers

SOURCE: I need to install my Dimplex baseboard heater

homeappliance.manualsonline.com/ex/thread/view/idThread/1430162 - 30k -

Posted on Jan 10, 2009

6ya6ya
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Posted on Jan 02, 2017

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