Home Maintenance Series – Think Your AC Won’t Make it Through the Summer? We’ve Got the Fixes.

HVAC system maintenance is inexpensive compared to what you might have to spend if your system deteriorates. This article by Douglas  Trattner has good advice for the summer to come.

Is your AC making ominous noises? Maybe it sounds fine but isn’t cooling. Here’s a list of common air conditioning warning signs and their likely causes and fixes.

“Let comfort be your guide,” says Tom Hutchinson of Hutchinson Plumbing Heating Cooling. Air conditioning is all about comfort, so the simplest way to evaluate your system is to ask: Am I comfortable?

Air conditioning and HVAC units don’t last forever — 12 years is an average lifespan — and the moment they fail is usually when you need them the most. The good news is that not every system malfunction spells total doom. Many nuisances are so cheap and easy to fix, you’ll kick yourself for not doing them sooner.

Warning sign #1: My air conditioning won’t turn on

Possible cause: Often, the most likely culprit is the easiest to remedy: the thermostat isn’t set correctly, or power isn’t reaching the AC unit.

The fix: Check to see that the thermostat is set to AC or “cool,” that the temperature setting is correct, and that the battery is fresh. Second, check the circuit breaker: Could simply be a tripped fuse.

Cost: Free

Warning sign #2: I’m not as comfortable as I was last year

Possible cause: “Airflow is paramount to comfort,” notes Hutchinson. If you aren’t comfortable, the problem usually can be traced to issues with airflow.

The fix: Change the filter. (You should do this as part of regular HVAC maintenance anyway.) Depending on the quality of the filter, the amount of people living in the house, and if there are pets, the filter should be changed every 30-90 days.

Outdoors, make sure there’s at least 24 inches of clearance on the sides and 5 feet on top of the unit. Also, check to make sure there are no obstructions to the home’s cold air returns and registers.

Cost:
$5 to $20, depending on filter.

Warning sign #3: My utility bills are abnormally high

Possible cause: A spike in operating costs typically signals inefficient operation. After a dirty filter (warning sign #3), the most likely culprit is a choked condensing coil. Located within the outdoor unit, the coil has countless cooling fins — much like a car radiator — that can accumulate dust and debris.

The fix: Call out a pro for a spring tune-up.

Cost: $75 to $150

Warning sign #4: Weird noises during startup and operation

Possible cause: Rattling, buzzing, or ticking? The good news is that the cause might be little more than a loose screw. The bad news is that it could be caused by a bum blower motor (indoors) or bent fan blade (outdoors).

The fix: If you’re lucky, a simple tightening here and lubricating there will fix the problem. If not, you might require a new fan motor or fan blade.

Cost:
$75 for an inspection and tune-up; $750 for a new motor.

Warning sign #5: The AC shuts off before or long after I’m comfortable

Possible cause: Improper placement of the thermostat can wreak havoc on one’s comfort. The unit might be in direct sun, too close to a register, or near a hot oven. Also, a remodel might have you spending more time where the thermostat is not.

The fix:
Relocate the thermostat.

Cost: Free if you’re handy (and plan on reusing the same unit), up to $150 for a new programmable unit and somebody to install it.

Warning sign #6: There’s a puddle of water next to my furnace

Possible cause: During normal operation, the system generates moisture in the form of condensate. That water collects in a pan and flows out a line either into a floor drain or sump basin. An accumulation of water signals a blockage or disconnection of the tube.

The fix: Inspect the tube for crimps, clogs, and disconnections. Also, if the water flows into a sump basin, ensure that the sump pump is in good working order.

Cost: Free to clean out blockage; $20 to replace line; $50 for new sump pump.

Warning sign #7: The air coming out of the registers doesn’t feel as cold as it used to

Possible cause: The refrigerant lines aren’t insulated.

The fix: The outdoor unit is connected to the indoor system by two copper refrigerant lines, which should be covered with an insulating sleeve. Make sure that it is. Also, the system may need its refrigerant re-charged.

Cost:
$5 for insulation and up to $150 for a system re-charge.

Warning sign #8: My AC unit refuses to kick on at all

Possible cause:
Burnt-out compressor

The fix: If the compressor fails, the unit won’t run. The only fix for this is a costly replacement of the equipment.

Cost:
$600 to $1,000. It might be wise to replace your air conditioner if it’s more than 8 years old.

About gvenice

I have over 25 years of electrical engineering and business management experience. I previously owned and managed a multi million dollar engineering firm. My work took me all over the globe, managing the construction of manufacturing plants where I built a reputation of providing superior service, getting projects done on time and within or under budget. My dedication to the fine details and logical approach to accomplishing tasks provide a huge benefit to my Real Estate clients. After selling my business and retiring to this area, I found a new passion in the Real Estate business and I bring to this business the same level of professional skill and conduct that has made mr successful in the past. My global exposure and extensive travel are also an asset when dealing with a customer base that is located worldwide. An avid boater, I have a thourough understanding of the waterways of East Tennessee and the intricacies involved in dealing with the TVA and the Army Corps of Engineers.
This entry was posted in East Tennessee, Energy Efficiency, Home Buyers Series, Home Maintenance Series, Home Outdoors Series, Home Owners, Home Safety Series and tagged , , , , , . Bookmark the permalink.

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