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What is the explanation for Miller furnace flashing two times and will not run. Have replaced ignitor coil already. Fan runs though. Any suggestions besides calling technician (already in process)?

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  • 53 Answers

Two flashes usually mans lack of intake air

Posted on Dec 23, 2014

Testimonial: "After calling technician, we had to replace heater motor and fan wheel."

6 Suggested Answers

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Posted on Jan 02, 2017

Therinnaiguy
  • 1420 Answers

SOURCE: Goodman Furnace m/n GKS90453BKAC

A constant red light (not blinking) indicates that the thermostat is not calling for heat. Of course you know it is but just to be safe, jump out R and W on the board. If it continues to do the same as you indicated, replace the board.

Posted on Dec 05, 2007

  • 1 Answer

SOURCE: goodman gmp075-3 led blinks 5 times

I Also have the same and other problems with my furnace model # GDS80703AXBB. First the LED kept blinking 4 times and I too jumped the primary limit, that didn't kelp. After several attemps I moved the wires going to the circut board and everything starting working again. After a week It stopped working again, so I pulled the plug out of the circut board checked all wires for for a bad connection plugged it back in. Now the LED blinks 6 times again I move the wires. Then the LED blinks 3 times. Then the transformer burns out. I have burned out 2 transformers and I have ordered a new circut board.

Posted on Nov 15, 2008

Therinnaiguy
  • 1420 Answers

SOURCE: have to replace ignitor on coleman furnace every year

The voltage regulator on the control module is sending the wrong voltage to the ignitor or the ignitor is getting wet from condensation. That ignitor should last many years. Replace the control module.

Posted on Dec 04, 2008

  • 12 Answers

SOURCE: Furnace cuts out because of "low air flow", then starts again

try the furnace without the filter. if it stays running then find out what filter came with the furnace. if you have the owners manual. look for the simple things first. blockage, is the motor and fan runnin properly.. good luck

Posted on Apr 09, 2009

heatman101
  • 43501 Answers

SOURCE: Burner ignites and goes out (Goodman Gas-fired furnace)

Hi,
The problem you have is water in the exhaust pipe.
Check to see if the pipe has sagged anywhere or if there is a trap in the line.
If you hear gurgling then it is definetly water....
Some times can be hard to find, even a pipe 1/4 full will cause problems. They are very sensitive to flue problems.
Make sure that the flue pipe either runs back to the furnace or out to the outside, a continuos slope either way witha high spot in the middle.
Also check the bottom drain of the blower if it has one, have had them plug and trap water also..

I hope that this will help you to solve your problem!

Thanks for using Fixya!!

Heatman101

Posted on Dec 24, 2009

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You are correct. If the inducer motor is warm, but not running, it has seized up. If you replace this yourself, I also suggest that when you replace the inducer fan, check to make sure the secondary heat exchanger isn't clogged, or the condensate drain(s). If you have an HVAC contractor replace it, he should do this for you. It shouldn't run more than $350, to have it replaced and he can check for clogs (The price I'm quoting is for standard hours).

You can check this yourself by running the inducer fan without it being attached to the furnace, then attaching it to the furnace. If you notice a significant reduction in airflow, then you have a clogged secondary heat exchanger. I've run across this situation before on this particular model. The owner recenly replaced the inducer motor, but couldn't figure out why he was still having problems. I suspect the clogged heat exchanger contributed to the inducer motor to failing previously, and feel It would definitely be worth checking while you have the fan removed to help eliminate any future problems that could result from this, including heat exchanger failure. The manufacturer of this unit actually recommends you clean the secondary heat exchanger every year, but this is overkill if your furnace was installed and set up properly. I'd recommend doing it every 10 years and you're at that mark now. Instructions on how to do this are in the manual for this unit if you have it. Otherwise, e-mail me at wheels38_97@yahoo.com and I can send you a copy.

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try the furnace without the filter. if it stays running then find out what filter came with the furnace. if you have the owners manual. look for the simple things first. blockage, is the motor and fan runnin properly.. good luck

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