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WE live in ND and have an Amana furnace that is 30 years old. We also have a Central air unt. OUr central air unit started coming on today when our furnace kicks on. Can you tell me why, it was 24 deegrees here today.

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  • 334 Answers

That would only really happen due to one of two things.

A bad thermostat.

A stuck relay. If the relay to the AC is stuck closed then it would come on whenever power goes through to the furnace.
This would be rare because very few units had that type of setup.

You can verify the T-stat by removinf the tsat from the wall. disconnect the red, white and yellow wires. Touch red to white.

If the heat comes on and the AC stays off, then your Tsat is bad.

Posted on Jan 17, 2009

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How a Central Air Conditioning System Works
amn_howac.jpg


Facts:
  • The typical central air conditioning system is a split system, with an outdoor air conditioning, or "compressor bearing unit" and an indoor coil, which is usually installed on top of the furnace in the home.
  • Using electricity as its power source, the compressor pumps refrigerant through the system to gather heat and moisture from indoors and remove it from the home.
  • Heat and moisture are removed from the home when warm air from inside the home is blown over the cooled indoor coil. The heat in the air transfers to the coil, thereby "cooling" the air.
  • The heat that has transferred to the coil is then "pumped" to the exterior of the home, while the cooled air is pumped back inside, helping to maintain a comfortable indoor temperature.
  • Central air conditioning can also be provided through a package unit or a heat pump.

Benefits:
  • Indoor comfort during warm weather - Central air conditioning helps keep your home cool and reduces humidity levels.
  • Cleaner air - As your central air conditioning system draws air out of various rooms in the house through return air ducts, the air is pulled through an air filter, which removes airborne particles such as dust and lint. Sophisticated filters may remove microscopic pollutants, as well. The filtered air is then routed to air supply ductwork that carries it back to rooms.
  • Quieter operation - Because the compressor bearing unit is located outside the home, the indoor noise level from its operation is much lower than that of a free-standing air conditioning unit.





















ed.

Sep 10, 2008 | Amana Heating & Cooling

1 Answer

Hello We have a Trane central air


Bad thermostat, improper wiring or bad circuit board in furnace. Turn off the disconnect outside.

Dec 30, 2009 | Heating & Cooling

1 Answer

My Amana (distinctions) central heat and air unit -loud noise


If this s an Oklahoma Tulsa area call. KOOL BREEZES 918 6878813 for a diagnostic check.

Dec 05, 2009 | Heating & Cooling

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Central air conditioner won't stay running


Sounds like it cycles on either head pressure or low pressure. If you have a Carrier unit it has both controls. Is your outside fan running. Is your condensor dirty. A unit that old needs to checked bby a service tech. Remember freon does just go away. If he puts gas in your unit there is leak. HINT Ask for free estimate on repair before it is fixed. That way you know the cost up front. Rus

Jun 25, 2009 | Heating & Cooling

1 Answer

Problem with amana central air conditioner saftey switch


The switch he jumped out was the high pressure cut out switch which tripped because you left the cover on. Sounds as though it did it's job and he cut it out to sell you another. Yes it is important to have as it protects the compressor.

May 05, 2009 | Amana PTC153B35AJ Air Conditioner

1 Answer

Amana Air Command 80, 20 years old. Electronic ignition. Furnace does not start. Good power to furnace. Themostat properly set. Where do I start looking? Bob


Hello Bob,
Welcome to fixya,

You said, Amana Air Command 80, 20 years old.
Electronic ignition.
Furnace does not start.
Good power to furnace.
Thermostat properly set.
Where do I start looking?

Sounds like you possibly have one or more bad jets if the unit is a gas furnace!
Let me know how it goes.
Huuum

WOW, listen to this story!
I understand you are looking for the solution to fix your furnace your self.
But I want to tell you my story about my smart wife and our furnace.
When we moved into this house the furnace was 20 years old and she suggested that we put a new one that it will save us money.
I laughed at her and replied if it's not broken why fix it!
Six years later it finally broke down and I replaced the whole furnace and central air unit with a new one.
Our utility bill went down $100 dollars a month!
That's $7200. that I lost over 6 years due to not respecting my wife's power of reasoning!
If you can afford it or can get financing replace any unit 20 years old and it will pay for it self.
Can you imaging $1200. a year for 20 years is $24,000 dollars I'm saving with a new and efficient unit.
Do the math!!!!!!!!!

Thank You,
Huuum, Hope I gave you some good fatherly advice.
Please remember to leave a rating


Oct 12, 2008 | Amana Heating & Cooling

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