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Induced Draft Blower Not Blowing- 3 Blinks on LED

I have an Amana Gas Fired Furnace Model CCA24FCC. It recently started blowing cold air out of the vent registers in the house and would then shut off after a call for heat at the thermostat with the setting on Auto. In the ON setting the circulator fan just blows ambient temp air. Upon further investigation I found I have a blinking LED. It blinks three times. The manual says- pressure switch circuit not closed. That is the case because the induced draft blower is not spinning. When a call for heat occurs this fan should spin. The pressure switch is functioning- with the furnace off or not operational the switch has no continuity across its terminals. When I pull a slight vacuum on the switch, I can hear it move and then my ohmeter has continuity across it. The problem is the draft motor wont run. When the furnace is switched on or a call for heat occurs, I do not have any voltage at the induced draft blower motor terminals nor do I have voltage at the control unit terminals. Am I on the right track to replacing the control unit? By the way, I had skipped replacing my filters for a few months and they were really dirty when I replaced them today while diagnosing the furnace.

Posted by Anonymous on

  • Anonymous Dec 03, 2009

    Thanks for the help. I installed the new control board last night and now it is warm and toasty in the house....

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Your doing well just right. When the call for heat is on the draft motor gets a call from the board to come on. When this happens if no voltage is present at the motor then you ahve abad baord. Replace it.

Posted on Nov 28, 2009

Testimonial: "Very professional with positive feedback. Thanks for the help! "

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Combustion blower motor runs all the time


I'm assuming what you call a combustion motor is actually the idm(induced draft motor) which is the 1st action in a gas fired furnace, clearing any residual fuel from heat exchanger then forcing the flue gas to the outdoors. This IDM is controlled, normally, by the furnace control board(circuit board). May need a new board.

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I have a Payne furnance, yesterday it stop giving up heat but give out only cold air. The led sensor light blinks 3 times slow pause in between and fast 3 times after. What do I need to fix this furnance...


Hello, it sounds like the pressure switch is not closing on your furnace and remaining open, reasons for this could be a blocked flue pipe, the tubing going from the inducer motor to pressure switch could be blocked, loose, or have condensation in it, or the switch itself is bad. U can check the tubing by taking it off blowing some air through it and making sure no condensation is in the tubing, then reinstall it. If everything checks out good then the pressure switch is bad and must be replaced.

Mar 02, 2011 | Heating & Cooling

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Goodman 95 %furnace keeps saying low pressure is stuck. changed out low pressure switch and high pressure switch and still have same problem.


That thang might be sensing a lazy flame. In other words the flames took too long in the board's opinion to quit sensing the flame. Yall probably need to do pressure tap on the gas valve.
Here is a realistic look at goodman fault codes and what to check fer and I am assuming you are not a tech and don't know this already and am hoping it helps:


Read one LED flash that stays on continuously to mean your furnace has no signal coming from the thermostat and will not operate. Turn the power off and check the thermostat for improper settings or connections.

Interpret one LED flash that blinks on and off to mean your furnace has locked out because it could not ignite after three tries, and must be reset. Interrupt power to your furnace for 20 seconds or lower the thermostat so your furnace does not try to heat, then reset the thermostat to the previous setting. After one hour of lockout, your furnace will automatically reset itself and try to operate as usual.

Decipher two LED flashes to mean the draft blower is not working, or your furnace has a short in the pressure switch circuit. Turn off the furnace power and repair a short or replace the pressure switch.


Read three LED flashes to mean your furnace has an open pressure switch circuit or it has an induced draft blower operating. Check the pressure switch hose of your furnace for blocks or an improper connection. Also, look for blockages in the flue, and tighten any loose wiring.

Translate four LED flashes to mean your furnace has a primary limit circuit open, possibly from loose wiring or blocked filters. Check and clean filters, tighten wiring and check the flue for blockages.

Interpret five LED flashes to mean your furnace senses a flame without a call for heat. This could be from a gas valve closing slowly or a burner flame lingering.



Read seven LED flashes as a warning of a low flame sense microamp signal. This could happen with a coated flame sensor or a lazy flame from poor gas pressure. Turn off the power and adjust the gas pressure according to the information on the rating plate.



See eight LED flashes as meaning an igniter circuit problem due to a bad igniter or an igniter connected improperly. Replace the bad igniter or check the ground wiring, making necessary corrections.



Decipher nine LED flashes to mean the high-stage pressure switch circuit will not close during a high-stage-induced draft blower operation. Your furnace may have a pinched or blocked pressure switch hose, a blocked flue or loose wiring.

Read continuous flashing on the LED to mean your furnace has a reversed polarity of 115 volts. Turn off the power and correct the wiring polarity after reviewing the wiring diagram.

Now here is how it should all go down:



Bottom dollar: it all goes back to type of gas, the initial setup, the pressure tap. and how it is wired up to begin with.
This will give you an idea where to start I hope.

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

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1 Answer

My central heating is on lockout and the burner is with red light


A sampling of various codes on a furnace

Read one LED flash that stays on continuously to mean your furnace has no signal coming from the thermostat and will not operate. Turn the power off and check the thermostat for improper settings or connections.

Interpret one LED flash that blinks on and off to mean your furnace has locked out because it could not ignite after three tries, and must be reset. Interrupt power to your furnace for 20 seconds or lower the thermostat so your furnace does not try to heat, then reset the thermostat to the previous setting. After one hour of lockout, your furnace will automatically reset itself and try to operate as usual.

Decipher two LED flashes to mean the draft blower is not working, or your furnace has a short in the pressure switch circuit. Turn off the furnace power and repair a short or replace the pressure switch.


Read three LED flashes to mean your furnace has an open pressure switch circuit or it has an induced draft blower operating. Check the pressure switch hose of your furnace for blocks or an improper connection. Also, look for blockages in the flue, and tighten any loose wiring.

Translate four LED flashes to mean your furnace has a primary limit circuit open, possibly from loose wiring or blocked filters. Check and clean filters, tighten wiring and check the flue for blockages.

Interpret five LED flashes to mean your Goodman furnace senses a flame without a call for heat. This could be from a gas valve closing slowly or a burner flame lingering.



Read seven LED flashes as a warning of a low flame sense microamp signal. This could happen with a coated flame sensor or a lazy flame from poor gas pressure. Turn off the power and adjust the gas pressure according to the information on the rating plate.



See eight LED flashes as meaning an igniter circuit problem due to a bad igniter or an igniter connected improperly. Replace the bad igniter or check the ground wiring, making necessary corrections.



Decipher nine LED flashes to mean the high-stage pressure switch circuit will not close during a high-stage-induced draft blower operation. Your furnace may have a pinched or blocked pressure switch hose, a blocked flue or loose wiring.

Read continuous flashing on the LED to mean your furnace has a reversed polarity of 115 volts. Turn off the power and correct the wiring polarity after reviewing the wiring diagram.

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

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1 Answer

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