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Not gonna lie, I had to look up transient torque. But no, that ain’t what broke this shaft. First it’s only a 2 hp motor and it’s vfd run. The tension on this thing was extreme. Not sure how clear it...

This was the result of belt tension being too tight after only a few days.866871866873

Carrier has a mass damper kit for this and another similar issue that caused a harmonic vibration that in the line set. It’s a piece of rubber shaped like pipe insulation that gets zip tied to the...

When replacing a condensor fan motor I usually replace the fan blade too. However if you need to reuse the fan blade, the easiest way too remove it is to cut the motor shaft sand it clean and then...

comfort zone II is obsolete and you likely wont be able to find even standard replacement stats. Time to update the entire zone system. I usually recommend Honeywell zone kit and vision pro 8000...

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This is an oem motor, shows a 5/370 cap but also says 7.5/370 required on some units.

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On a unit that is being replaced no less :LOL:

We are not the problem, the vast majority of professionals here in the US are very careful to recover refrigerant and do things the right way. We’ve come a long way from being able to light rivers on...

An old 3 ton r22 system held 3 pounds of refrigerant and lets say it had a catastrophic leak twice in a 20 year lifespan. That system will have leaked 6 pounds of r22. Then its replaced with an r410a...

Most mini splits require at least 10ft lineset length and have a length that you need to add charge to it. That does give them some flexibility on the amount of refrigerant in them but it also means...

What’s a sure fue way to tell the difference between low indoor return temp and low charge?= Measure the return temp, look at all the symptoms and measurements. Some call it big picture diagnosis. ...

CLR and steel wool will remove the rust and clean up the paint without destroying the patina then you can clear coat it to preserve.

There was a change to the software on some furnaces that put a longer delay on the trip for code 31, there is a bulletin for it on partners look for tic2017-0001. I'm pretty sure it covers all the...

I guess this is my shame, I was helping this guy program this replacement drive. After it was all programmed it showed error 2021. That indicated it was missing the input on DI-4. Turns out it’s the...

This was a tough one to find. Carrier has 2 main vfds, acs320 and acs550. This is a picture of an acs550 that is the replacement drive that according to the parts system is the correct drive for this...

I often find low voltage shorts where the wires pass the corner of the blower assembly on the way to the economiser section.

The service bulletin talks about switching the thermostat to electric heat and that does the same thing giving a "w" and "g" call.

I’ve also run into issues with carriers vfd on their smaller rtus. The one building we knew was having incoming power problems and the vfd would lock out on some fault (I say some fault because...

Been in homes that looked like that, and worse.

Selling my Imanifold kit. Everything works great, I could use the money more then this. $800.00 or best offer.805919805920805921

Never saw the icemaker on the ac line, but I have seen the icemaker on a boiler pipe.

This video is aimed at the "sales techs" because the smart chip is supposed to be only available from a contractor.

At least he was kind enough to mark it for you

Don't see why not, but pure ar is for mig welding aluminum. Co2 is cheaper and works great for mig. As for the purging the line sets, ar is a dry noble gas so it should work fine as long as you...

There's a whole section just for jokes. A lot of techs come here to learn and better themselves and the whole trade.

What about the other side, one downside was listed. Compressor will run with a bad capacitor. Does anyone know of any other problems that can come from using a hard start?

Is it really that hard to get an empty recovery tank? Don't expect you to ride around with ine always on the van, but you didn't have the coil in the van either. Like the man said " this shouldn't be...

Why not just use a clean recovery tank, pump the charge out do your work and then put it right back in.

Most of the times I see a run capacitor blown, theres no start capacitor. Check starting amp draw, put a 521 kit on and check it again. Ive seen them go from pulling 90 to 100 amps on startup to...

I've read this engineering study because the company I work for wants to sell these. They say 35% of the market has 80% furnaces with degraded temp sensors for fan control. Theres no way thats...

Just for you hurtinhvac heres a couple pics i took during my last trip to St Louis.467661467671467681

I think lennox makes ducane, so I guess you could call that an inside out lennox. Thankfully the majority of hackery I come across is new customers on no heat calls.

Stack temp alone is not enough to tell if it's over fired we need the rest of the combustion analysis.

Sorry about all the sideways pics, my android phone never did this. I'm alo not very computer savy maybe one of the moderators can help me out.

467361467461467451467441467431467421467411467381467371this one is sideways, the drip leg is upside down467471

humidistat above the humidifier on the supply467261
that arrow is only a suggestion anyways right?467331
just put them zone dampers anywhere467321
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"but won't it recirculate?"467301
"naw...

10.5 on lp seems high, those covers on the heat exchanger like to hide cracks. Last one of those I saw had 19 cracks, pull the heat exchanger and you will find them.467221467231467241467251

That's the best example of "eh, close enough" I've ever seen.

Triangle tube boiler has a stainless steel heat exchanger, W-M is aluminum. That's one major difference. The most significant difference though will be your familiarity with the TT boiler and its...

Potheads are lazy, that looks more like the drug of choice is crystal meth.

1/4 " thick steel, same heat exchanger for gas, oil, or coal. Yeah those old trucks last forever as long as you can stand the fuel mileage.

Maybe in your climate, its a very different story when the design temp is -10*.

Good point, I always hated when people say "they don't make em like they used to" and now I see how my post sounds exactly like that. The only thing I like about that furnace is the way the front...

Why can't furnace manufacturers put a nice easily removable door for inspecting the heat exchanger like that. 43 years old and that one is probably fine, today I found a badly cracked heat exchanger...

The info I have says the first two numbers of the s/n are the year of manufacture. Unless there's a cp in front of the s/n. There's a recall on williamsons too, here's a link....

Judging by the expansion tank support and the missing switch plate, the drip leg is the least of the hacks there.

Electric wh is cheaper for the realtor to install when building the house, less gas piping and less venting. They aren't living there so they don't care about efficiency, the really cheap furnaces...

Your sposed to jam a rock in the crankcase heater to take up the slack.

Looks like the temp sensor in the flue for proving flame, those are no very safe. The only way I would work on that is if it were updated to a modern oil burner head.