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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?

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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

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

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