Question about Intertherm Heating & Cooling

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I have a E2 EB 105 HB electric Intertherm furnace. 2004 year model It has heat strips when the blower motor comes on the heat doesn't come on. When the heat comes on the blower motor wont come on.

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  • Travis Mitchell
    Travis Mitchell Dec 12, 2016

    Where do I find the settings in the thermostat to do this

  • Thomas Woodburn
    Thomas Woodburn Dec 12, 2016

    This depends on what type of tstat you have. Download the installation and user manual for your stat. All tstats are different. Usually you have to hold 2 buttons at the same time for 3 seconds or something like that. That will take you into a different screen where you can make setting changes. Send the model number of your tstat

  • Travis Mitchell
    Travis Mitchell Dec 12, 2016

    Thank you so much I'm on my way home but when I get home where it's at I'll send you the model number

  • Travis Mitchell
    Travis Mitchell Dec 13, 2016

    Mr. Thomas my thermostat is a Pro1516 or a pro 0 480-601-20ETP

  • Thomas Woodburn
    Thomas Woodburn Dec 13, 2016

    Not finding that but did see a pro1. Pull t stat off wall and check the back. Look for a switch that says gas/elec. Make sure you have it on electric side. Hit reset button inside the back.

  • Travis Mitchell
    Travis Mitchell Dec 13, 2016

    Yes sir mine has that and it's on electric and I hit the reset when my temperature on the thermostat reaches the setting on heat everything is working but the blower. On the AC part of my unit everything is working properly. thermostat, blower motor, outside unit it's just

  • Travis Mitchell
    Travis Mitchell Dec 13, 2016

    It's just on the heat side heat strips working coming on and going off properly blower motor just isn't coming on

  • Thomas Woodburn
    Thomas Woodburn Dec 13, 2016

    Turn off breaker take tstat cover off wall. Wire nut together the white, green and red wires.turn power on. This should bring heat and fan on. If it does not i would guess that the speed tap for the motor has come off of the heat relay. That may get a little complicated to explain. Let me know.

  • Travis Mitchell
    Travis Mitchell Dec 13, 2016

    Done it still no blower motor got heat but no blower motor

  • Thomas Woodburn
    Thomas Woodburn Dec 13, 2016

    You will have to figure out wiring. Typically you have 3 wires for high voltage to your blower, 5 for low voltage (speed). Only 2 speed taps are normally used. One for the heater one for the cooling. Usually speed 4 is heat and 2 is for cooling. Refer to wiring schematic. Follow your speed wires off your blower 3 will likely be hanging loose. It may just be a bad speed tap and you can hook 5 up to the heat relay instead of 4. GOOD LUCK. TURN POWER OFF

  • Travis Mitchell
    Travis Mitchell Dec 13, 2016

    Still not working. Thanks for all of your help Thomas if you can think of anything else I would appreciate any advice I'm going to give it up for the night though you have a good one



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Sounds like a problem in your tstat. In settings you need to setup where the tstat controls the fan in heat and cool.

Posted on Dec 12, 2016


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You may have something (paper,dust, etc.) on the electric coils. There may also be a short in the element.

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Check fuses. one may be blown, and the other one not, Therefore you are getting only 110V to a 220v circuit.

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check out the fan switch on the unit and make sure that its the correct one. it should cycloe on @ 120 degrees and cycle off around 100 degrees. Someone may have put in a different one and that is not the approve one.

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Probably a time delay relay fan switch not working.
Could be a bad low speed winding in the fan motor.
Set the wall T-stat for ON fan and see if it works.

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check for pressure switch trouble or cracked ignitor.

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