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I have central air, I'm receiving air on the first floor of my 2 story twin which are all base board vents. but I'm not receiving air on 2nd floor, which all are ceiling vents.

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Hi,

I would say that the floors are individually selectable, and maybe the control is not set for the top floor to come on. If it is, then most likely the fan unit is not working and should be tested.
First check the fan motor with the power off, then check the supply with the power on. ***** DANGER OF SHOCK ******
Only do this test if competent and have the correct tools and training.

Posted on Jun 28, 2008

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Posted on Jan 02, 2017

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I have a AMH95 gas fired furnace. there are 2 drain tubes on the back of furnance that drain water when the central air is running. One tube runs to a tube that runs to a floor drain and the other just...


Hello RR,there are 2 tubes one is the PRIMARY drain & the other is secondary drain.If the primary drain becomes CLOGED or slows down the 2nd drain leaks.Its time to clean out the primary drain tube.Find the end or disconnect it & blow/flush it out to clear it.

Aug 09, 2010 | Heating & Cooling

Tip

Keeping your whole home cool with central air.


Sometimes it is difficult to keep your home cool in the hot summer months. Also, some areas of your home may still be hot where other areas are too cool. Try this method to keep your home cool evenly throughout. Before you get started make sure your furnace filter is new. This will allow for maximum air flow.

If your living space is a single floor plan:

  1. Turn the air conditioning on
  2. Switch the furnace fan from auto to on.
  3. Measure the temperature in each room.
  4. Close the vents by about half in the cooler rooms
  5. This will force more cool air into the warmer rooms.
  6. Keep adjusting the vents until all the rooms have the same temp.

If your living space is on more than one level:

  1. Turn on the air conditioning.
  2. Switch the furnace fan from auto to on.
  3. On the lowest level of the house close half of the vents that are the closest to the stairs.
  4. This will force more cool air to the top floor where it is usually hotter.
  5. Cool air will sink from the upper floors which will keep the area near the stairs cool.
  6. Measure the temperature in all the rooms.
  7. Keep adjusting the vents until you have a nice even temperature throughout the house.
I found that leaving the furnace fan on all the time will keep your home evenly cool and comfortable. You may have to replace your furnace filter once a month due to the increased air flow. It will be well worth it in a cooler, more comfortable, and more energy efficient home.

Take Care,

Eric

on Aug 09, 2010 | Heating & Cooling

2 Answers

I'm looking to purchase a Rudd 2 stage model, 16 SEER, 5 ton along with a 100000 BTU 95% furnace. I have a two story home and will only be using the 1 AC. Will the Rudd cool both floors?


Assuming that there are ducts ran upstairs and downstairs, it all depends on the square footage of the living spaces, i.e. bedrooms, living room, dining room, etc. You need an average of 1 cfm per sq ft. For every 1 ton of air, you have an average of 400cfms. So your 5 ton unit will cool/heat 2000 sq ft. A 16 seer unit with a 95% furnace is a nice buy and you will notice the difference for sure. Hope this helps!

Aug 03, 2010 | Ruud Central System Air Conditioner

1 Answer

The hot air won't circulate to upperstairs


2 possible causes. 1 there is a blockage in the ventilation system (possible collasped ductwork) or 2 the fan motor is going out. The motor could be going out due to the winding swelling as the motor is run heating the winding causing the windings to swell slowing the motors rpms.

Dave

Feb 22, 2010 | Bryant 463AAC005BA Air Conditioner

1 Answer

Turned on a/c unit no air blowing from vents. unit is on out side runing


2 things could be the problem 1 The blower motor capacitor has one out. This is a small oval or round piece that the wiring to the blower motor is attached if this is out the blower motor will not work. 2nd. the blower motor itself has burnt out. Replace the capacitor and the motor together should you have to change out the motor. Good luck hope this helps

Dave

Sep 04, 2009 | Ruud Central System Air Conditioner

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Unit leaking


leakage from my central air unit from drain pan, please help

Apr 29, 2009 | Whirlwind FH-778 Air Conditioner

1 Answer

Not enough air flow coming from the vents on the second floor.


If you feel like increasing your blower motor speed you can do this. Go to the air handler take the cover off to expose the blower motor. You will see a circuit board that has the blower motor wires going to it. Using your flash light look at the board and locate the terminals that read Cool Heat Park ... Now the Cool terminal should have black colored wire going to that one. Now locate the Heat terminal if it has red going to it and maybe blue sitting on the park terminal then swap the two around, blue is like med speed on the blower. Where Red is low speed. This will increase the blower about 50 rpms. You can even read your blower motor and get the speeds more detailed. You have a big house your unit is I bet a 4 ton A/C and 125,000 btu furnace. Probably has 1600 rpm motor. This is one solution. You have a up flow model and when you open the furnace cabinet up you will be able to see the specs. on the furnace. Let me know how that goes ken here in Kansas

Jan 13, 2009 | Ruud Central System Air Conditioner

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