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Questionable installation of a Goodman furnace.

We purchase a new condo, the furnace is a Goodman. Is it proper to have the outside air intake just hanging in the furnace room or does it need to be attached to the furnace?

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That seems to be the common practice. The low pressure created by the suction of the fan will draw air in from outside.

Posted on May 03, 2010


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I am new homeowner of 60+ small ranch 1,000 sq ft. Home has 2010 Goodman gas furnace set into existing ductwork previously used for coal/wood furnace. Blows hot air into 2 cold air returns. HVAC man...

Look closely at the ductwork; determine which is your returns and which is your supply, and also check for" old baffles "that may be diverting your supply air into a return.
On the outside of the duck work you will see a wingnut or some have small handles that indicate the placement of the baffle and in the direction it is facing (vertical) will mean it shut off (horizontal) will mean that it is letting air pass through. If they're working properly and not loose.
It sounds like they had the old furnaces Duck work is in a loop for part of the home to recirculate the air that was heated .
that would be my guess without looking at it .
I hope this helps you, look in the right direction it's definitely duck work that is causing your problem.
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I have 2goodmanGKS9 gas furnaces(propane) installed on 27 Dec 2009. Both units are working. One is in the basement adjacent to the rear outside wall. Lower unit heats about 1200 square feet. Lower...

well lets start with the 2" pvc pipe. that is a combustion air intake it does not put air into the room, i hope. this is a 90% furnace and they should have installed it that way. there should be 2 pipes to the outside the other is combustion gases. the dust problem maybe caused by the air return pulling the air to that room. the bedroom normaly does not get the trafic that the rest of the condo it would not have as much dust.

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I have a CH&A Goodman AC outside. My Fan and heat work properly. My A/C wont turn On or the Auto Fan. But works with heat. Can push the 24V copper connector to turn on the A/C but when i let go it...

You need to check to see if the voltage is coming to pull the contact in, if not then you will have to check for the voltage at the air handler/furnace on the main board for the voltage. If the voltage is at the contactor then the coil is bad and you need to purchase a new one. All the information is on the old one on the top or bottom. Hope this helps tim

Aug 29, 2010 | Goodman CKL49AR49 Air Conditioner

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It's a brand new unit but it blows air so hard and makes so much noise. Can the flow the adjusted down?

is the fan outside too noisy,if so there is no way to change the speed of this fan,the blower motor in the furnace can be adjusted,either by adjusting the centrifugal pulley on the motor shaft or electrically or installing a different squirrel cage fan on the furnace blower

Aug 22, 2010 | Goodman CLQ36AR49 Air Conditioner

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Intake vent needed?

The blower motor is only going to pull a certain amount of CFM for circulation air. There is some restriction of air flow that is created when the return air system is ducted causing the air flow to "slow down" a bit. The air going into the furnace firebox is probably moving at a faster rate than if the return air was ducted. It will work and you will get the same amount of heat (energy) released but the faster moving air will make it feel cooler. Also the unit might be undersized(BTU output) for the size of the cabin and amount of airflow the blower is creating. Adding a extra filter(double) might slow down the air flow a bit to create more warmth(feel) coming from the registers. Also if the furnace and air intake is pulling air from outside(garage,closet, or under house) then the colder air from outside going into the system will decrease the heat from the furnace. It is better to have a closed system (return air inside cabin). You might want to try adding a extra filter to slow the air flow down some or use some sheetmetal and square it from the intake to try and concentrate the incoming air a little better and see if that improves the warmth coming from the furnace.

Jun 16, 2010 | Goodman GMS90703BXA Heater

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Does the air intake pipe for a Goodman heater need to run outside

no both to go outside if you had fumes problem you would have fumes inside your house just example but the answer is no

Apr 10, 2010 | Goodman GMS90703BXA Heater

1 Answer

Hi I was told that if you buy a new goodman furnace on

True, because there is no installing contractor involved with the sale the manufacturer cannot be assured that the heater will be installed properly. Contact a local installer to see if they can sell you the equipment for a few dollars over their cost if you pay them to install it. It may be cheaper in the long run especially if you are purchasing a Goodman. If not, follow the installation instructions to the letter.

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My goodman gaspack has had two incidents of cracked heat exchangerS within 18 months apart. Could something be cAUSING THIS TO HAPPEN?

Things to watch for when your heat exchanger is cracking....
1.Always kee the filter clean
2.Make sure the return air vents are clean and clear of obstructions
3.Your furnace could be Oversized for your house thereby running too hot.
4.The furnace can be "Overfired" basically burniing more gas and running hotter than it's supposed to be
5.It's always best to have your furnace taking fresh air for combustion from outside...basically you should have 2 pipes on your furnace for Air Intake and the other for Exhaust
6.Sometimes some furnaces have a Bad Design and are prone to failure...Some Goodman have "Rings" basically large rivets that pop...this was a bad design however all the suggestions above should help but may not eliminate your problem

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I have outside Goodman-Janitrol furnace and air unit and

two things to try first to get you pointed in the right direction. First disconnect the R or RH wire from the T-Stat. If the furnace turns off (Stops firing w/ fan to turn offabout 90 sec. later) then you more than likely have a bad Thermistat. If it continues to run Pull the R wire from the Furnace circuit board. put door back on furnace if it stops you have a short in the wire. Still Running? Most likely a bad curcuit board. Hope this helps.

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