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I have a nordyne furnace unsure of year model m1mb077aba burners ignite but wont stay lit rainy and windy out and inducer isn't the best what could be problem

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Posted on Jan 02, 2017

JetJedi221
  • 25 Answers

SOURCE: The furnace burners won't stay lit

Could be a couple things. First and easiest is to check your intake combustion air supply. If it is blocked by anything or just not enough flow, it will put out the flame. Next would be the flame sensor, usually a temperature probe near the flame front. If it's not reading an increase in temp within a pre-programmed time, it will kill the flame. It can be checked with a multimeter.

Good luck!

Posted on Jan 25, 2008

  • 189 Answers

SOURCE: Burner flame going out on windy days on Coleman Evcon LP furnace

This sounds like a bad heat exchanger. It is possible that you do not see the crack because the crack is closed when the heat exchanger is cold (or room temp). Allow the furnace to heat up, this will allow the expansion of the crack. Turn the power off and examine the heat exchanger while it is still hot.

Posted on Apr 10, 2009

  • 4 Answers

SOURCE: I have an induced draft motor fault on model

is fan working? if so check the small tube from fan to pressure switch this sometimes will be lose. if fan is working and tube is connected you can check to make sure switch is good by disconnecting hose from fan housing ,start unit **** on hose & hold end so it keeps a vacuum. if everything works than you need to replace fan motor & housing

Posted on Oct 20, 2009

  • 26 Answers

SOURCE: goodman furnace, inducer blower comes on, but

In the burner compartment opposite of the ignitor is the flame sensor. seems to be dirty. one screw holds it in. Remove and clean with a wire brush.

Posted on Nov 21, 2009

  • 1033 Answers

SOURCE: Janitrol GUPS075-3 Furnace burners will not stay lit

The first thing I would do is make sure the flame sensor is clean, this is a metal rod immersed in the burner flame on the opposite side of the igniter. If too much oxidation builds up on it, it will not allow the burner to stay lit. To clean, just turn off furnace and remove flame sensor and clean with steel wool and then reinstall. If this does not solve the problem there may be a problem with the gas valve.

Posted on Nov 08, 2012

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Sound like the spark igniter, if it stops after the burner(s) is/are lit your OK.

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Troubleshoot an ignition problem on a Lennox gas furnace ...

? 2:44
https://www.youtube.com/watch?v=yXIxgzwMkPs
Nov 17, 2012 - Uploaded by grayfurnaceman
This furnace should light its pilot with a spark then the pilot proves its on ... Troubleshoot an ignition problem on a Lennox gasfurnace .... Pilot and no inducer but is the same model as that great video! ... You probably have dirty burners. ... How do you know spark module is not sending 24 volts to mv and pv ...

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Janitrol GUPS075-3 Furnace burners will not stay lit


The first thing I would do is make sure the flame sensor is clean, this is a metal rod immersed in the burner flame on the opposite side of the igniter. If too much oxidation builds up on it, it will not allow the burner to stay lit. To clean, just turn off furnace and remove flame sensor and clean with steel wool and then reinstall. If this does not solve the problem there may be a problem with the gas valve.

Nov 08, 2012 | Heating & Cooling

1 Answer

Our furnace keeps shutting down soon after burner ignites inducer motor stays running wont heat until reset switch behind inducer motor is pushed


Sometimes a "Flame Sensor" gets carboned up and does not detect that the furnace has ignited, so it shuts down the fuel source. Might try cleaning that if so equipped.

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Check the draft inducer air switch ( vacuum diaphragm switch) If the switch is opening when the burner starts, you might have a blockage on air piping coming into the furnace. Also prime the condensate trap on the condensate drain from the combustion fan. Also check the gas pressure, if your gas pressure is dropping, the gas pressure switch will shut it down. If it's too high the moment it comes on could raise the pressure in the furnace dropping out the combustion fan proving switch.

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Thats a safety.

The unit senses a failure to ignite, so it goes into safety mode keeping the blower running to prevent overheating and fires. And keeping the inducer motor running to prevent the same, as well as raw gas build up inside the unit.

The newer systems are "smarter" and can detect more specific problems and failures. The older ones simply know that the thing didn't light, so they bring on the fans for safety.


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In the burner compartment opposite of the ignitor is the flame sensor. seems to be dirty. one screw holds it in. Remove and clean with a wire brush.

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Burner flame going out on windy days on Coleman Evcon LP furnace


This sounds like a bad heat exchanger. It is possible that you do not see the crack because the crack is closed when the heat exchanger is cold (or room temp). Allow the furnace to heat up, this will allow the expansion of the crack. Turn the power off and examine the heat exchanger while it is still hot.

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sounds like the thermocouple that senses when the burner ignites is faulty. when the burner is first lit it looks for a signal from the thermocouple telling it that it has ignition. i have had some luck removing the part (furnace off) and sanding it clean. this is located in front of one of the burners..Good luck

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