Nordyne/Intertherm weak flame - furnace off?
Posted: Sat Jul 12, 2014 6:25 pm
I replaced my furnace back in 2009 with a Nordyne/Intertherm M1M B077A AW. It's A/C ready but I haven't gotten around to getting central air installed yet (although I wish I did - it's 35 C here today!)
I have this peculiar problem with the furnace. It's happened twice (once last year, and once just last week.)
In the middle of summer, the furnace fan kicks on. The thermostat is OFF. Like, no calls for heating or cooling. But the furnace started and the code was blinking weak flame. I was a little confused, the combustion chamber was not warm and when I looked through the investigation flap the burner wasn't lit at all. I reset the furnace by shutting it off (using the switch behind the furnace door) for a bit (maybe 10 minutes?) and turning it back on again.
I was outside no more than 10 minutes and I could hear the furnace running again. Again, no flame at all. I switched the furnace off and it's been off since then.
That day there was smoke in the air, someone in the neighbourhood must have been burning something or other and I did have all the windows open to my place.
When I turned the furnace on last fall (it did do this last summer as well) it worked normally.
Could outside smoke have triggered the furnace? Or perhaps is something worn out? I find that hard to believe, the furnace isn't quite 5 years old yet (will be in October.)
I have this peculiar problem with the furnace. It's happened twice (once last year, and once just last week.)
In the middle of summer, the furnace fan kicks on. The thermostat is OFF. Like, no calls for heating or cooling. But the furnace started and the code was blinking weak flame. I was a little confused, the combustion chamber was not warm and when I looked through the investigation flap the burner wasn't lit at all. I reset the furnace by shutting it off (using the switch behind the furnace door) for a bit (maybe 10 minutes?) and turning it back on again.
I was outside no more than 10 minutes and I could hear the furnace running again. Again, no flame at all. I switched the furnace off and it's been off since then.
That day there was smoke in the air, someone in the neighbourhood must have been burning something or other and I did have all the windows open to my place.
When I turned the furnace on last fall (it did do this last summer as well) it worked normally.
Could outside smoke have triggered the furnace? Or perhaps is something worn out? I find that hard to believe, the furnace isn't quite 5 years old yet (will be in October.)