Your Full-Service HVAC & Plumbing Company
Air One Keeping Your Family Happy & Comfortable
Picture of HVAC system

When Your AC Needs Professional Attention

It’s the middle of summer, and the last thing you want is your air conditioner to break down. It’s hard to tell if your air conditioning unit is healthy, and it’s even harder to know if it needs professional attention. Below you’ll find the comprehensive guide on diagnosing your air conditioning unit, so you can determine when its time to call a professional.

Check Condensor Coils

The condenser coils in your air conditioning unit work in tandem with the evaporator coils to remove heat from your home. If they are not properly maintained, your air conditioner cannot properly cool your home, and it will become extremely inefficient.

Check if your condenser coil is dirty by inspecting the small exposed copper pipe connecting the inside unit to the outside unit. If the pipe is extremely hot, the coils are dirty, and you have your answer--call a professional AC technician.


By now, you are most likely used to the white noise that your air conditioning unit produces when it’s on and running. So, when something is wrong within the mechanics of your AC, you will hear it. If you hear squeaking sounds, grinding, rattling, or hissing, your air conditioner’s motor may be malfunctioning. You will need to schedule an appointment with a professional AC specialist to repair your AC’s motor. This will stop the noise coming from your AC and increase its efficiency.


If you begin to notice a slight burning smell coming from your air vents, your air conditioning unit is giving you a very clear sign that professional attention is required. A burning odor indicates that your motor is beginning to overheat. This is an emergent situation, as your motor is in jeopardy of a full melt-down. If not addressed by a professional immediately, your air conditioner will need replacing. Call a licensed professional immediately to assess your unit, and determine the best course of action for maintenance or repairs.


Yes, it is possible for your AC unit to freeze over in the middle of summer. This can happen if you have a blockage in the drainage system or low levels of refrigerant in your air conditioning unit.

Your HVAC unit uses your drain lines to dispose of the moisture collected by your evaporator coils. If these drain lines become clogged, back-ups occur that will freeze the coils over your entire AC unit. Frozen coils are extremely detrimental to your entire air conditioning system.

Running your AC while the coils are frozen is a sure-fire way to permanently damage your compressor, which is the most expensive AC repair there is. So, if you notice your unit forming ice, immediately shut off your AC and call a licensed professional.


You will notice a hard-start when your AC turns on an off, multiple times, during its cooling cycle. Hard-starts put immense strain on the compressor, consequently increasing your energy bill.

There are several potential reasons your unit is experiencing these hard-starts. The most common problem results from failing capacitors. Capacitors are electronic devices that store and supply electricity to the motor. Without working capacitors, your air conditioner will have a hard time starting a cooling cycle. In severe cases, your AC will not start at all. Additional reasons your AC has trouble sustaining an entire cooling cyle may include issues with the motor, or the compressor. Call a professional to diagnose the source of your hard-starts.

The NATE-certified professionals at Air One Heating & A/C, Inc. have your back. You can count on us to get your AC job done right. If you are in need of repairs, contact us by filling out a form or giving us a call at (909) 505-2471.