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I have a 901650 intertherm furnance im try 2 hook thermostat up 2 for heat and air but this unit has different lettering then what thermostat has on it

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5 Suggested Answers

  • 49 Answers

SOURCE: Intertherm to Honeywell thermostat

Typically if you have a yellow wire in the "y" terminal blue is used as common or "c". As far as your jumper from rc to rh, that will depend upon what type of heat you have. If all of your heat and cooling come from your packaged unit outside, yes you will need the jumper. If this does not work maybe you have a bad breaker or transfomer.

Posted on Oct 14, 2007

  • 49 Answers

SOURCE: Intertherm E1EH-015HA FURNACE no heat

Sounds like a downflow electric furnace? If so it sounds like you have 15kw worth of electric heat, you might have a defective heating sequencer, witch is what they call a dual on one plate.

Posted on Nov 28, 2007

ACTECH
  • 80 Answers

SOURCE: intertherm heat pump

FIRST YOUR OUTSIDE UNIT PROVIDES HEAT BY USING A REVERSING VALVE TO CHANGE THE REFRIGERANT FLOW.THERE IS NO HEAT STRIPS OUTSIDE SECOND YOUR EMERGENCY HEAT TURNS ON ELECTRIC ELEMENTS INSIDE YOUR AIRHANDLER UNIT.IT SOUNDS LIKE SOMEONE HAS WIRED YOUR UNIT WRONG OR HAS THE THERMOSTAT SET IMPROPERLY.WHEN THE HEAT PUMP CANNOT SATTISFY THE SETPOINT THE THERMOSTAT IS SUPPOSED TO TURN ON YOUR ELEC. HEAT UNTILL THE LOAD HAS BEEN REACHED AND THE HEAT PUMP CAN CONTINUE TO MAINTAIN IT.

Posted on Nov 29, 2007

jumptrout51
  • 3361 Answers

SOURCE: Installing 1 1/2 ton Weatherking Heatpump and ADP

O energizes the reversing valve when the thermostat is set for COOL. B energizes the reversing valve when the thermostat is set for HEAT.
The O/B is usually a orange or black wire.
You can't hurt anything if you choose O or B incorrectly. Hook one of them up and run the unit. If set for COOL and the unit runs cool inside it is correct. If set for COOL and the unit runs warm inside it is not correct.
If the inside temp is opposite from your setting change the wire to the other terminal.
Remember to disconnect power from the air handler when changing thermostat wires.
The defrost control board on the outside unit should be marked correctly for O or B.
Your thermostat may have a slide switch rather than a separate terminal.

Posted on Oct 30, 2009

Testimonial: "Thanks for your quick response, I'll give this a try. Safety first on disconnecting the AH. "

  • 1 Answer

SOURCE: Intertherm heat pump blows hot then cold then hot

heat pump runs for 10 min. then cuts off. will not run over 10 min.It is a INTERTHERM.could it be the defrost control

Posted on Dec 04, 2009

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I have an older Intertherm MAC 2441 electric furnace. I saw a lable on the unit that said it was easily able to be converted to include AC. I was looking for the information needed to make this...


When that unit was manufactured, AC cendenser were available for it, but it will be very hard to find them today. So to fit a different type in, it will have to be "modified" to make it work. Which will make it hard for anyone but the person who "modifies" the unit to work on your unit!

Your unit is not the most efficient furnance so you might want to consider replacing the furnance and getting a matched air conditioner with it. The difference in the operating cost would help pay for the unit.

Jul 16, 2011 | Heating & Cooling

1 Answer

Our fan for the intertherm p3ra-024k will not shut off. We have put new wiring from thermostat to unit. He pulled the green wire like the serviceman told him to when he serviced it and it still keeps...


You have a problem with the wiring somewhere it could be in the thermostat. When the service man said pull the green wire off that was the power to the fan. The thermostat should wire up as red to the R terminal on the thermostat this is the 24 volt feed to your thermostat and to the unit. The white wire should hook up to the W terminal on thermostat. This white wire is to the heating section of your furnance it activates the heat mode. The yellow wire hooks up to the Y terminal on the thermostat this is the outside condensing unit control for the a/c. The green wire should hook up to the G terminal on the thermostat this is your fan wire that activates the blower in your furnance If this wiring isn't hooked up as such then your problem is in the wiring from thermostat to units inside and out. Also if you have changed the thermostat you need to be aware of the setting for the thermostat and the type unit you have. Most thermostats are universal however, you need to make sure that on the thermostat the setting for heat pump on the thermostat it will have a small switch and on switch will have hp at the top and nonhp at the bottom. If you have a heat pump you need to make sure that the setting on the thermostat is on hp if not a heat pump nonhp is the setting. Also there will be a switch that has g at the top and e at the bottom This is you gas or electric heating seletor switch make sure this switch is in the proper position for either gas or electric heat. Good luck on your repairs Hope this helped

Dave

Nov 02, 2009 | Intertherm P3RA-024K Air Conditioner

1 Answer

Furnance not heating


Make sure that the thermostat is set for the proper medium that you are using being gas or electric. Inside the cover of the thermostat should be a setting for either eletrical heat or gas heat. Set this switch for what your system is G for gas or E for eletric. This may solve your problem. Good Luck hope this helped you some

Dave

Oct 26, 2009 | Intertherm P3RA-036K Air Conditioner

1 Answer

Condensation leaking out of unit


if it is the indoor unit leaking, make sure that all your drain lines are clear.... if you're talking about the outdoor unit leaking water in the heat cycle...that is normal.

May 16, 2009 | Intertherm P3RA-048K Air Conditioner

1 Answer

I have a intertherm model feh-017h electric


It's the heat kit in the unit that is causing the problem. You need to do a continuity test on it to eleminate that they have shorted. This is the only thing in an electric furnace that will blow a fuse on it. Intertherm is a Nordyne product for manufactured homes. Of coarse they still sell them! I am a Nordyne dealer. Also a sequencer can not cause a fuse to blow. The service guy just wants to make money from you by installing a new unit. You can either re-wire the heat kit or you can purchase a new one and have it installed. If you are referring to the heat kit for 159.00, then that's a fair price for it if you are a non licensed person.

Mar 17, 2009 | Heating & Cooling

1 Answer

Need help bad!!!!


try to google it at best but chances are you will need to contact intertherm directly and order one. what is wrong with your unit?

Jan 04, 2009 | Heating & Cooling

1 Answer

Indoor fan motor continue to run even if the thermostat is in auto position with the cool and heat switch in the off position. The furnance don't have a fan on and off switch in the furnance like most....


Try this, disconnect the fanwire (green) on the furnace, if it shuts off then the hot wire from the thermostat is touching the green wire or bad thermostat. Thank-you-very-much!

Aug 26, 2008 | Intertherm Heating & Cooling

3 Answers

Intertherm heat pump


FIRST YOUR OUTSIDE UNIT PROVIDES HEAT BY USING A REVERSING VALVE TO CHANGE THE REFRIGERANT FLOW.THERE IS NO HEAT STRIPS OUTSIDE SECOND YOUR EMERGENCY HEAT TURNS ON ELECTRIC ELEMENTS INSIDE YOUR AIRHANDLER UNIT.IT SOUNDS LIKE SOMEONE HAS WIRED YOUR UNIT WRONG OR HAS THE THERMOSTAT SET IMPROPERLY.WHEN THE HEAT PUMP CANNOT SATTISFY THE SETPOINT THE THERMOSTAT IS SUPPOSED TO TURN ON YOUR ELEC. HEAT UNTILL THE LOAD HAS BEEN REACHED AND THE HEAT PUMP CAN CONTINUE TO MAINTAIN IT.

Nov 28, 2007 | Heating & Cooling

1 Answer

Intertherm to Honeywell thermostat


Typically if you have a yellow wire in the "y" terminal blue is used as common or "c". As far as your jumper from rc to rh, that will depend upon what type of heat you have. If all of your heat and cooling come from your packaged unit outside, yes you will need the jumper. If this does not work maybe you have a bad breaker or transfomer.

Oct 12, 2007 | Intertherm P3RA-048K Air Conditioner

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