Central air conditioning problems
Read and Write Your Air Conditioner Problems

Central air conditioner problems

I hesitate to write the common central air conditioning problems homeowners had. I don’t know how homeowners will use this information.

Just to make this clear. This is for information only, it’s not meant to fix central air conditioner units. Now we’re done with that. Let’s get start.

Central air conditioning problems mainly fall into four situations: electrical problems, mechanical problems, refrigerant cycle problem, and air flow problem. If you have air flow problem, it will affect the refrigerant cycle and Ac components.

For example, homeowners will call us and said he needs an Ac Freon. We will always ask him basic question, like. Did you change the filter? Usually, it’s not the Freon, it’s the ac filters. He doesn’t know that air flow will affect the refrigerant.

Your central air conditioner units will have problem as it ages. We provide you the opportunity to submit your air conditioning problems here.

The lists below are just the tip of the iceberg. So, if you want to read more; you have to provide us the air conditioner problems.

Read This First:

On average we receive 14 or more questions a day and we can’t answer them all or post them online. It would just jam central air conditioning problems page with unanswered question.

If you’re really, really need an answer to your question. We ask that you help other homeowner first.

If you provide homeowners a review on your central air conditioner units, we’ll make sure your question is our first priority above all other question.

Pick the brand on the left and follow it guidelines. If we didn’t have a section for your brand, you can submit to any of the brand on the left.

Make sure you list the same name on the reviews and on this question page, so we know it your reviews. You only have to write one review and afterward you can ask many questions as you want.

Warning:

Submission Guidelines:

• Provide the serial and model number of the central ac unit.
• You’ll have to provide us a lot of details. You’ll need to tell us what you hear, smell, see or touch (If you’re not sure, don’t touch).

  Our answers are basis on the information you provide. So make sure your information is correct. If you provide us the wrong information, you’ll receive the wrong answers.

  Here is Do and Don’t

  For example:

  Do – I turn my central air conditioner units On and the condenser fan is running and I could also hear the compressor running, but I’m not getting any air inside my house.

  This is better!

  Provide us as much detail as you can. If you provide the wrong information, you will get the wrong answers.

  Don’t – My central air conditioner is not coming on, what wrong with it?

  We can’t determine your central air conditioning problems with that detail.

• No DIY or FIY Question

The links above is for central air conditioner problems only, if you have a general question. Here is the link:

Central Ac Unit Is Running, But The Condenser Wouldn’t Turn-Off

You turn the thermostat to off position, but the condenser unit still running. The problem could be:

There is power supply to the condenser units. A switch that supposed to be in the Normally – Open position is actually in the Normally – Close position.

There is Frost Buildup On The Suction Line (big copper line) Or Near The Compressor

You’re getting cold air, but the central air condition kept cycling On and Off. Your central ac units cycle On and Off due to low pressure. The problem could be you have dirty filters and the evaporator coils or the Ac Freon is low.

Central Air Conditioning Units Not Blowing Cold Air

If the central air conditioner unit is blowing air, but it not cold. The possible central air conditioning problems could be:

The condenser unit is not running, including the compressors.
1. Refrigerant leaks or not enough refrigerant.
2. Dirty condenser coils and the evaporator coils.
3. There could be something wrong with the metering device.

The Condenser Fan Is Running, But The Compressor Doesn’t

We know the compressor is not short to ground. If it is short, the condenser fan shouldn’t run. Here are the possible problems:

Some air conditioner compressor has hard start system that could be the problem.
1. Bad electrical connect to the compressor.
2. Internal safety switch within the compressor is open.
3. The compressor is lock up due to foreign object or liquid refrigerant.
4. Bad capacitor

Central Air Conditioner unit Is Running, But Not Enough Air

You have the outdoor units and the indoor units are running, but you’re not receiving enough air from the Ac system. The air is cold, but not enough to cool the house down.

The main device that supposed to move the air within the house is the indoor blower. The symptoms could be:

The blower’s blade is dirty.
1. Blockage within the duct.
2. Duct leaks.
3. Blower’s capacitor is damage.
4. Blower’s motor is bad.
5. Blower is on low speed.
6. Dirty filters.

The Central Air Condition Is Making Noise

If the central air conditioner unit is making sound and the sound is from indoor. The only electrical part that is large enough to make that sound is the blower motor.

The sound could be from the blade or foreign object is trap in the blowers.

The Indoor Blower Is Running For A Short Time, Then It Stops.

If the indoor blower motor is cycling on and off, the problem could be the capacitor is bad. The internal thermal overload is causing the motor to do that.

The Condensing Unit Is Not Running.

If the central air conditioning unit is not running and the condensing unit breaker tripped. You try to reset the breaker and it trips again.

The problem could be the condenser fan, compressor and other electrical is grounded.

The Central Air Conditioner Unit Is Running Constantly.

If the central air conditioner unit is running and never stop. The possible central air conditioning problems could be:

The ac filter, evaporator, condenser coil is dirty
1. Low on Ac Freon

One Room Is Warmer Than The Other.

If you have one bedroom is warmer than the other bedroom. The possible problem could be:

you had a lot of electronic that is producing heat on that specific room.
1. Ducts Leak.
2. The grille is closes.
3. Object is blocking the air flow.
4. Restriction within the duct.

These are the common central air conditioning problems homeowners might see within their central ac units. These are just random air conditioner problems; nothing special.

How do you avoid some of the air conditioner problem?

You can change the filter; clean the evaporator and the condensing coils to avoid unnecessary air conditioner problems. It’ll take extra pages to example why. But, it does help.

Got Central Air Conditioning Problems?
Do You Want Answers?

The basic central air conditioning troubleshooting guide is to look and listen. You will be our ear and eye. You will need to provide as much detail as possible.

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