Question about Intertherm Air Conditioners

Open Question

Intertherm G4RK096C-16 Gas Furnace Fan not cutting in during heating cycle. If we wiggle the wires, fan cuts in. Some time ago during servicing, a variable speed control for the fan was installed. There is now a red wire going to the fan connector on the control panel and a blue wire with a spade tip is taped off. If we were to disconnect the variable speed control, which wire (red or blue) should be connected to the connector on the control panel?

Posted by on

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

Gigatech
  • 259 Answers

SOURCE: REPLACED 10KW FAN/HEAT SEQUENCER AND LOST TRACK OF WIRING

Could not find the E1Eh-020HA but found the E2 series


http://www.nordyne.com/Literature/707716c.pdf


http://www.nordyne.com/Literature/901a.pdf

Hope this helps. :]

Posted on Dec 13, 2007

  • 30 Answers

SOURCE: Is there an easy way

I have never heard of a variable speed Intertherm. If it has multiple wires it is likely just an adjustable fan where you can use a different lead for a different speed. Usually black is high blue is med. hi, red is low, ect. Check your wiring diagram on the furnace door. Why do you want to change the speed?

Posted on Nov 24, 2008

  • 85 Answers

SOURCE: I have a Carrier weathermaker

Go ahead, just turn off power to breaker box first, or you'll be cursing for at least 10 minutes...

Posted on Dec 04, 2008

james3751
  • 614 Answers

SOURCE: Intertherm furnace/AC, fan on the furnace won't shut off.

How old is the intertherm. The old ones have fan limit switch and sometimes they stick. The new ones have a fan baord or time delay relay. They go bad from moisture and they just go bad sometimes. It sounds like you just have a shorted relay. If you think you can replace it you can get a relay at any parts store. Need the model number of unit. If not just call a service tech for free estimate. Russ

Posted on Jul 24, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Nordyne furnace FEH017HA-04 the fan runs full force when the ac is on but half speed when the furnace kicks in


That is probably normal if it is electric heat to slow the air over the heating elements. Even some gas units do this. Check to see if the unit blower motor has wires for multiple speeds.

Oct 24, 2013 | Coleman Intertherm Nordyne Miller Furnace...

1 Answer

Heater kicks on and off after heating.


The blower may cycle on and off to cool the heat exchanger. The fan limit still senses the heat after the furnace shuts off and the limit goes up the same as when the furnace first starts. You could adjust the settings on the fan limit.

Dec 24, 2009 | Intertherm P3RA-048K Air Conditioner

1 Answer

Fan starts and quits several times


I will give you my best suggestions based on the information that was provided. It sounds like the blower motor is trying to come on several times unsuccessfully and then the flame is shutting off. If this is the case, here are my best guesses.
  1. If the blower motor has a run capacitor, the capacitor could be bad and the motor is trying to start but is pulling too many amps and tripping out on the internal thermal overload. You will need a multimeter that is capable of checking microfareds to determine if the capacitor is bad. Capacitors are usually marked....you will commonly see a marking of 5uf, 7.5uf, 10uf, etc... Sometimes all you need is a new capacitor. These are not very expensive.
  2. The blower motor itself may be bad.
  3. If there is a fan switch, it could be bad. A fan switch has a set of contacts that are normally open that will close when the switch heats up and send voltage to the blower motor. These will eventually wear out and act erratically if at all.
  4. The motor may not be getting the proper voltage, this too can cause the motor to pull too many amps.
  5. The most likely reason the flame is shutting off after the blower fails to come on is because the furnace is tripping on the high limit switch. This switch typically cuts the 24 volt power to the gas valve.
I hope this helps!

Oct 29, 2009 | Goodman CKL24AR24 Air Conditioner

1 Answer

Intertherm furnace model MGHA070AAFC-01 cuts on and off


I assume this is a gas furnace? If so its most likely your fan switch. This is set to come on after the "Chill" is gone on the furnace and go off a few moments after the flame cuts off. there are several different kinds but you will find it if you trace the wiring from the fan motor (usually the colored wire red, blue, or yellow and NOT the black or white or brown) goes to it. If the colors are hard to see use a good lite and some alcohol to clean them up some.

Hope this helps and please rate me accordingly Good Luck.

Mar 11, 2009 | Intertherm P3RA-048K Air Conditioner

1 Answer

Fan cuts on and off repeatedly when heater is on


either the circuit board or the relay that controls the fan in heating is dropping the fan out. it probably uses a different blower speed for cooling than for heating.. you'll need a meter to check if it is losing power.

Please rate this it matters to fixya.

Jan 15, 2009 | Intertherm P3RA-048K Air Conditioner

1 Answer

Ruud air to air heatpump intertherm propane furnace honeywell th5220d non programable thermostate.fan on furnace will not turn off in aux.mode even though the furnace heat kicks on and off. thank you for...


Make sure fan relay is wired correctly (G) wire. Ensure the fan on therm is not on, it should be on Auto or off.

If your furnace is short cycling because it has to keep heating your home, the delay in the control board may be staying on to compensate for the exchangers getting hot. If it heats normally, then put your attention to your thermostat.

Set the heating system on aux heat only. Fan should not be on, if it does stay on after a heating cycle, see if the furnace is heating normally, and reaching temp as desired before the heat comes off. Then check the therm wiring, pull the face of the therm, disconnect green wire (fan) and try the heating again.

Dec 06, 2008 | Intertherm Air Conditioners

1 Answer

Moter will not cut off


is the thermostat set on fan on? Be sure the thermostat fan switch is all the way in the auto position..If you have a circuit board with a g terminal that is a gas furnace. Turn power off remove and isolate the green wire then turn power on. Let me know if it still runs. If it does not the circuit board is the most reasonable problem

Nov 14, 2008 | Intertherm P3RA-048K Air Conditioner

1 Answer

Elec. intertherm FURNACE


It would help if I knew what type of system you have, lets start with the thermostat. If you disconnect the wires to it, does the heat turn off? I have seen thermostat wires pinched inside the wall, thus bypassing the thermostat controls altogether and it would run constantly. If you send a reply, tell the type. Wall furnace, central unit, heat & cool, gas, electric or heat pump. If you dont know tell me how many wires you have at the thermostat and the colors. You should know this, as you have changed it.

Jan 05, 2008 | Air Conditioners

Not finding what you are looking for?
Air Conditioners Logo

Related Topics:

74 people viewed this question

Ask a Question

Usually answered in minutes!

Top Intertherm Air Conditioners Experts

gbob59

Level 3 Expert

2963 Answers

MightyMikeJr

Level 3 Expert

347 Answers

Brad Brown

Level 3 Expert

13561 Answers

Are you an Intertherm Air Conditioner Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...