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Maybe this helps with the mystery of the cracked heat exchanger. When I got my goodman furnace I was a new homeowner and got a new goodman furnace. The old one was not an efficiency furnace and had broke down. Every couple years after that I would have to replace my inducer motor because the bearing would overheat. I had the same tech come out every 2 or 3 years for the replacement. After the third one, the furnace stopped operating a year later. I was actually experiencing these really bad headaches for a few weeks when the heating season started. The furnace quit one day and I had to call a different company to come and take a look because the old tech had passed away. The new tech said my heat exchanger was cracked and showed me the unit where a hole big enough to put my index finger through was on the first bend. He surmised my headaches might have been from carbon monoxide gas leaking into the house. He replaced the exchanger and I mentioned how many inducer motors I had gone through with burnt bearings. He then looked at my filter and asked if I had allergies. No. Well then why was I using this special hepa filter?? Because thats what the old homeowner used on the old furnace. The light bulb went off and he deduced the hepa filter was restricting air flow to the point the furnace was overheating, causing the inducer motor bearing to overheat and fail and reduced airflow also probably caused the heat exchanger to overheat and crack. On his recommendation I switched to a cheap air filter to increase air flow through the furnace and now 6 years later have not had the inducer fail. I just wonder why the old tech wouldnt ask "Hey this is the third unit I am installing in 7 years, maybe something is going on." It all came down to the type of air filter I was using.

I'm guessing that the furnace is oversized for that small house. As a result, the furnace short cycles during a call for heat and never gets a chance to burn off the moisture in the flu gases. The moisture in flu gases is acidic and will eat right through a heat exchanger. The next size smaller furnace would heat the house up more slowly, therefore burning off the moisture in the heat exchanger (increasing the lifespan of the heat exchanger). Excellent video showing how to troubleshoot and diagnose a cracked/rotted out heat exchanger. Keep up the good work and thanks for sharing.

A lot of repair people dont like the customer standing around. I just had a new furnace installed and i asked them if they cared if i stood out out the way and watched so I could learn a little. They said they didnt care. They did a great job.

Hwr hot water tank sometimes leaks gas, sounds like a wonderful place to be

As a current hvac student , seeing that massive rollout in a real life video 📹 was worth the price of admission alone . Appreciate the video . Thanks

Nice footage of that rollout. At this point convincing the customer to replace the furnace with the appropriate size equipment would be the best option.

I had one exactly like that. Gas pressure was set to high burned a hole right through the tubes.

Yikes that is some serious rollout.

I have basically the same unit. 15 years old and the induction fan stopped working. The motor would hum but the bearings were gone, so no fan. Replaced the Induction unit and still wouldn't fire. Replaced the vacuum safety switch and still wouldn't open the gas valve to light. Replaced the vac hose, nope. All of the sensors checked out. Pulled the vacuum hose from the air box and sucked on it, the furnace lit, AH HA!. Not enough vacuum. Pulled the front air box cover off and everything was clean, bright, and shiny. I had to pull the heat exchanger. Would not recommend this unless you are experienced working with electrical appliances, gas lines and sharp metal things that will cut you just by looking at them. Got it out and overall it looked 15 years old but intact. Next step was to remove the rear cover to the air box and pressure test all of the tubes. That's where the problem was. Pulling off the rear cover a significant pile of rust fell out. All surfaces were rusty. All tube ends were crumbling. The fire retardant gasket was 80% gone across the bottom of the pan. Looks like moisture was collecting across the bottom causing everything to deteriorate. There were no significant openings to allow blower air in to cause roll out, but it was enough of a leak to screw up vacuum pressure. Now another $1000.00 later, I have a new heat exchanger.

Scary when it rolled out. Wow. Good catch! Smart using the camera!

The Flame Roll Out was impressive. I recommend everyone have a CO Detector. It would be interesting to see what Manifold Pressure and Temperature Rise was at. Thanks for the video.

I always make an appointment with my hvac guy around the middle of september to come out and service my furnace just incase there is any issues its done before cold weather. Last thing you want to do is wake up on a cold fall morning with no heat and someone cant get to you for a week because a hundred other people had the same issue that day. Last year he found a cracked heat exchanger on my coleman furnace. It was replaced by october and ready to go.

Don’t you just love when the homeowner stands there and watches every move? It’s as if they are going to fix it themselves next time. When the electrician or furnace guy comes, I show them where the work is, ask if they want coffee etc., and leave them ALONE. Their time is my money, if they are trying to respond to my dumb questions, it’s going to be that much longer they need to be there. Your response when she said she was going to “have a cigarette” was clear to me, you don’t mind being left alone lol. You do awesome work by the way.

Very common for a Goodman to blow holes like that in the heat exchanger. I knew it was the centre cell that was bad as it was the one blowing back once it started up. Unit is oversized, should be a 40K. Licensed Refrigeration Mechanic/ Heating Tech in Toronto, Canada

Give you props taking time to find crack considering size of roll out.

Change out the exchanger and charge her labor, should only take 2 hours if that. It has a 20 year warranty.

Goodman noise on fan start up and spillage will only be plugged condensing coil or bad primary seen it way too often, have seen some pretty big fractures in Goodman primaries

This excellent example of flame rolling out great video.

If I had a dollar for every Goodman dealer that says their furnaces aren't crap and if there's a problem it because of the install. This time it's actually true lol. Short cycling will do that! It should be a 40k

What's the purpose of having the coil in there but not hooked up? Might as well ditch the coil and get more air flow

I'm in the Mid Michigan area and have seen numerous of these heat exchangers fail. I have seen holes just like that one, but more commonly small holes on the sides of the bends of the tubes. Where all the ripples in the bend are at. Usually on the 2nd and 3rd turns in the primary!

People should always select service providers who have this kind of youtube content. It's honest and non-promotional. The scam artist rarely posts about how they came in, pretended to poke around and came up with "You need a new furnace" based on scare tactics and misinformation.

Watching it fully through most likely water from the unit short cycling. Heater is most likely over sized. That or inserts weren't removed on propane system and they can blow into the heat exchanger causing holes.

You did a great job on that one ( went the extra mile by using the camera from the A coil side of the furnace). I would have just ran a birthday candle down the cells with the blower on and called it done. Unit being only 9 years old I would think the heat exchanger is still under warranty. I was never a fan of those 2 stage furnaces. Probably caused it from condensation in low fire ( it's hard to set the temperature rise on those two-stage furnaces).

That's a huge hole more than likely the first turn in the heat exchanger, first they crack and then there's a chunk that breaks off. I used to install Amana heaters that had stainless steel heat exchangers guaranteed for life. Those days are over.

Fan kicked on and was blowing air though the hole in the heat exchanger causing the flame to roll out into the cabinet. Luckily the flame rollout switches shut that off.

Better replace the furnace with the correct size, or add ductwork. Didn’t anyone take gas pressure, temperature rise and duct static as a part of a normal fire off?

I instinctively reached for my eyebrows to see if they had been singed off after I saw that rollout...

Good Lord man,, the roll out by itself could heat 800 sq ft.. lol

This furnace was made in 2011 and this video is 3 years old, which means that the furnace did not even pass 10 10-year warranty on the heat exchanger! My Goodman furnace model # GM9S960603BN and as per the description it has a heavy-duty aluminized-steel tubular heat exchanger. My guess is that was not the case with this model?

1:13 The blue wire is cooked, get ready to see rollout.

I think Goodman had some production issues. My furnace had the same problem (Goodman, 2011 manufacture, hole in the heat exchanger). Some days are better than others.... Same location for the hole on mine. Good luck finding a replacement heat exchanger....discontinued item.

You can really see the cigarette glaze on that evaporater coil...

Where is the hot dogs and marshmallows LOL Houston we have a problem

Company i work for used to be a goodman dealer. If found quite a few like that. They always blow out right at the back of those bends

Why is the evaporator plumbed with PVC if there is no refrigerant lines connected to the coil?

Dang, that's a crazy roll out. Hope they got it replaced.

I just had one today similar to this but not near as much rollout as that one! It was cracked and had holes through the seams.

People blame the manufacturer of the furnace for it going bad but it was the guy who oversize it to begin with. Also the gas pressure was too high causing the heat exchanger to get too hot. This is what happens when you don't have trained HVAC professional doing regular service on heating and air equipment. 🤔

Why not you can get a heat exchanger for free and it only takes about an hour to install it or Goodman will give you a new furnace under the replacement program for a few hundred bucks.

At that age....11 yrs old, something is wrong in order for a unit that young to Crack. Airflow most likely. Improperly designed. Restricted ductwork etc.

What caused the hole issue too much heat? Seems to me like she was working hard

Customers: you're paying for the man's time and expertise...leave him alone!

Wow! That's some crack! Bobby and Whitney would love it! 😂 good find

Junk heat exchanger makes for junk furnace. Or is this one replaceable?

I'm amazed all the stuff you fix. Good thing she called you because a person should never smell anything...I hope she invested in a CO2 monitor.

Easy quick diagnosis. Could spot that one from here.

Ugh cracked heat exchangers

question did you red tag the furnace so as not to use?

Those damned Goodman doors !

This is a downflow furnace, correct?

Are you required to lock out the gas line going into the gas valve when you find a cracked heat exchanger ?

yells "inspection mirror, inspection mirror, inspection mirror" like Steve Balmer and throws chairs around :)) Microsoft years ago (developers, developers, developers) this should make the nerds lol

Nice job and video

I have a twenty-three-year-old Miller furnace for a double wide and it has a cracked heat exchange but the technicians are saying they need to replace it the whole furnace can't they just replaced the heat exchange?

I found those junk Goodman tubes busted open just like that on several occasions here in Southeast Ohio. I literally just changed one out a week ago and I’m getting ready to change another one next Monday

With a rollout that bad, there is no doubt there was a hole in that tube.

minute the blower comes on I knew what it was...

Just from experience I find Goodman heat exchangers are absolutely awful. I’ve found cracks on 5 year old systems before.

nice find! oversized furnace! great video and take care out there!

So propane burns hotter to damage the heat exchanger???

I’m no hvac guy by any means but shouldn’t these have a rollout switch that’s supposed to trip to shut down the furnace?

No swing joint? We change lots of high efficient carriers. Failed secondaries. They plug up because the epoxy costing on the secondary flakes off and the secondary rusts. Never seen this though! That’s junk!

Question… I don’t have a lot of money. My furnace has a rollout and I took out the heat exchanger and found a quarter size hole in the bend or elbow of one of the tubes. Will extreme heat jb weld fix and hold until winter is over and I have more time and money to replace it?????

Over fire LP and it will take out the heat exchanger in short order

Goodman warranties usually replace the whole furnace not the heat exchanger ,that's if it's within 10 years i believe

That is insane rollout :O

Damn that’s a nice one. Good find as always

Rollout! Rollout!

If you want your viewers to step up to the plate and help that 2 families without a furnace . I will donate.

That unit isn’t even that old There must be a airflow issue that caused the heat exchanger to fail ?

is that one of those gmhs that can't be locked on low fire? gmv would be worth saving.

That can happen when customers don't change their air filters.

Watch that beard! I saw a roll out like that once. Had just enough room to get between a fridge and the furnace! Talk about ass over tea kettle. Couldn't get out of there fast enough.

Better to replace furnace

I love when they smell gas and do nothing. Like it's normal

Why does this happen more often on the ones that are running on propane?

You should do a replacement heat exchanger it’s still under warranty

Man I want that tool bag!

It get very obvious when the flames comes out

"I know sometimes our hot water heater will leak gas, so..." me: "Ok. Go ahead outside to smoke yer cigerette."

That was terrifying 😳

I don’t envy you on this call. Whoever designed this house with this “postage stamp” size area for a hot water heater & a furnace needs to have his business license revoked.

Probably oversized and has high static pressure.

Thanks

Shouldn’t the coil be in the supply and not the return? If it’s in the return won’t the cold air eventually crack the heat exchanger? Thanks

“Yeah yeah yeah”.... I’m trying to get into this sob right now🤪

very scary rollout the wires have the insulation burned the rollout switches should of tripped as 9 out of 10 she needs an entire new furnace as most likely replacing the heat exchanger is not advisable if its out of warranty.

holy shit.

Holy 💩 !!!!!!

Great work!

On oil fired warm air draft test can ck for cracked heat exchanger, can it be done on gas fired?

Yikes you got a hole in the heat exchanger

Gaper 🤘⚡️🤘

That was scary that could burn the house down

Should be under warranty yet?

to me the flame sounded funny, before indoor blower. but it's so hard to tell via video, even live stream at 1080P or 4K. the visual and sound of being there just isn't the same and heaven forbid the folks have visual/hearing impairments. thinks back to dear blind old great grandma, she asked for a refill of her water cup, I poured it nearly full to the top and started to hand it to her, about then my brain said hey idiot, she cannot see and will spill it all over, about then I said whoops it's very full to the top. she didn't spill any, but said she would have because they only give them half cup full at most ( that was about 30 years ago as a kid)

Great Camera

Hot water tank sometimes leaks gas; ehhh no big deal sounds pretty normal to me. Lol