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Max Sr & Paul Schoenwalder Plumbing, Heating and Air Conditioning, A Corp. Blog

3 Common AC Problems, Symptoms, and Their Repairs


When a homeowner with a malfunctioning air conditioner wants to know what’s going on, nine times out of ten, they’re probably going to search online for it. Turning to the internet for help is common and hey, that’s probably how you ended up here. 

Homeowners turn to the Internet for several reasons. First, they want to know if it’s something they might be able to fix on their own. Two, they want to know if it’s something they did out of neglect. And three, they want to get an idea of what’s wrong and how much it’ll cost to fix it. 

It’s great to be a proactive homeowner and to try and understand what’s wrong with your system. However, we hope you’ll leave the necessary air conditioning service in Union to the pros if you realize the “fix” isn’t something as simple as changing the air filter.

Let’s go over the answers to the questions that brought you here. Here are 3 common AC issues and the problem, their symptoms, and the likely repair.

Strange Noises

  • The symptoms: Strange sounds that are audibly noticeable and bothersome. These can include hissing, bubbling, banging, screeching, metal-on-metal, or any sound that is loud and unusual.
  • The likely culprit: When refrigerant is leaking from the system, it’ll produce a hissing or bubbling sound. Banging, screeching, and grinding usually mean there’s a loose screw or a lack of lubrication between moving parts. 
  • The possible fix: For leaks, we’ll pinpoint the source of the leak and seal it, then refill the refrigerant. For a loose component, worn-down parts, or a lack of lubrication, we’ll hopefully only need to tighten some screws and add some lubricant. A parts replacement is possible depending on what it is.

Lukewarm/Hot Air

  • The symptoms: Your AC is running but your home’s temperature isn’t budging in the slightest. When you check the vents, you notice the air is lukewarm or downright hot.
  • The likely culprit: A refrigerant leak, a clogged air filter, or a malfunctioning compressor.
  • The possible fix: If it’s because the filter is clogged, replacing it with a clean one should remedy the issue. If it’s the compressor, be forewarned that this is a major, costly component and you’re potentially facing an expensive repair. 

Leaking Condensate Line

  • The symptoms: There’s water pooling around the base of your AC. Your AC might not turn on at all because the sensor has been notified that there’s a problem with draining.
  • The likely culprit: The condensate line drains the moisture that your AC collects. Sometimes, it can become clogged with dirt, dust, and mold. When it can’t drain, water collects and overflows.
  • The possible fix: Try pouring a cup of plain white vinegar into the condensate line to see if that removes the clog. 

No matter what the issue is, you can count on us for prompt and professional repairs. Our technicians are experienced with all makes and models of central air conditioners and ready to provide the level of service you deserve.

Established in 1912, Max Sr & Paul Schoenwalder Plumbing, Heating and Air Conditioning, A Corp. is your trusted resource for reliable AC repairs. Reach out to us today.

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