You know what i hate?

[3Berries]

If it's the duct work it would happen just as the fan comes on. If that's not the case then you may have some sort of mini expolsion going on when it's trying to light.

You really need to watch it as it tries to fire up. Usually there is a led on the control board that flashes a code or shows what stage things are in on the start cycle. You'll have to look in the manual for the furnace to interpret what it's showing.

The usual starting sequence is the exhaust dampener opening and a fan coming on to purge any fumes out of the combustion chamber and exhaust, then a gas solenoid will open along with the igniter. Once the flame is established then it runs off the thermostat. There's also some sort of optical eye or other sensor that see the flames to keep it all running.

[Puglover1]

3Berries Will delaying calling someone be detrimental? Like burn out something else? This morning as it was waiting to fire up seemed like I heard some air noise as I passed the basement door. Also, little warmer today, didn't take long later ... it seems to take longest when it's coldest outside. Does that make sense? Is this a definite HVAC tech call, or a handyman that might be cheaper? Not as cold today, maybe they're not as busy as the two weeks in December. TY!

[SoOrbudgal]

No this was door to door salesman for a roofing company. I guess i need to put up sign on my gate. I investegated the company

[3Berries]

The loud boom maybe be the ductwork popping? And the power vent sensor is an air flow sensor that may get the small air tube clogged with dust or pug hair!

[Rwise]

My floor furnace acted that way, it was a loose connection on a thermal sensor, I just bent the spade terminal so it would be tighter. So far thats fixed it. good luck Puglover1

[Puglover1]

3Berries Thanks! Sometimes when it gets very cold outside I hear this big loud boom. I can't imagine deck boards sounding that loud for whatever reason. Does that sound like a furnace thing?

[3Berries]

Puglover1 It probably is the power exhaust vent opening not making the switch or failed sparker/igniter

[Puglover1]

You mean spam calls? OMG, thank goodness for the block option on my phone. I wish 1/4 were people I know, friends calling.

[Puglover1]

golfnrl I hate it too. alltatup Gen Z'ers are more into voting, protesting ... reminds me of 'Nam. My nephew: b.1975, Gen X? Many are Gamers glued to the screen, rarely out in social places, i.e. bars, concerts, etc., don't care much about voting or politics except to complain about things they don't know much about, very cynical. Boomers kill me: from Frank Sinatra to Buddy Holly to The Beatles, in one lump. We are not all the same. 1955 here. I can associate with 75-80 year olds and late 20 to 30's, the same as people my own age. Age means little to me, it's the person, regardless of their age. Did they even tag generations before the Boomers? It's nice to hear of younger people I know who are in the trades: electricians, plumbing ... They have nice homes, family oriented, mom can stay home to raise the kids if she wants. Like when we were young.

[Puglover1]

I loved Wild Irish Rose and MD2020.

[Puglover1]

Here on I-80 just west of where it intersects with I-39 there was a two-year road job. When the west was opened up I was like halleluiah, then they started on the east, another year. One narrow interstate lane, including a bridge and curves. Didn't scare me, I was so used to it, the semis made holes fast, I knew where to swerve. As soon as it opened to two lanes I hammered the pedal to get ahead of the uninformed vehicles and semis. It was a messy and crumby road for two years, the route to the dispo and vet. I hate that they start those merge signs two exits early. From my house it's 2 minutes to the on-ramp, there are three exits in the first 5 miles, including the shopping zone exit - WalMart/Home Depot/Menards/Kohls/Auto dealerships/Mall/Motels/chain restaurants - an exit lane I like to avoid.

[Puglover1]

My furnace has a needle-in-a-haystack issue, for maybe 8-10 years. The other morning thermostat was set at 69, temp was 65, furnace was waiting for the ignition to happen, my cat was laying on the register waiting for it too. I'm going to ask the guy who fixed an electronic issue on my AC unit outside his opinion, if it'll fry it. Everytime a technician could get here it finally fired up before they got here, after two hours sometimes. good luck!

[Blowdout2269]

Done did that once already this winter!

[3Berries]

Road construction on the Interstate. It's seems perpetual on what little bit I use of it. I see now they have signs up telling people to use both lanes instead of lining up for miles with an empty lane next to every one or the idiots driving down the middle blocking traffic. And signs at the merge point to tell every one to alternate and be nice. Driver education on the roll.....

[golfnrl]

Your points make sense. I certainly don't have your perspective. My experience is in a profession that requires a lot of mechanical skills and common sense. I see young men and women ill equipped mostly because they are ignorant and haven't been taught, shown, or have any experience with basic tools. Or know left from right so to speak. I suppose I could ask the google machine but what was the generation before the Baby Boomers called? And the one before that? And the one before that? I've been around since 1958. I've noticed more and more references to this group generalization as a way to shape group think. And I hate it. You may be correct, but I still hate it cause it aint right.