{"id":1137,"date":"2023-04-17T11:00:00","date_gmt":"2023-04-17T15:00:00","guid":{"rendered":"https:\/\/www.kennihans.com\/blog\/?p=1137"},"modified":"2026-06-30T09:06:29","modified_gmt":"2026-06-30T13:06:29","slug":"5-signs-your-ac-needs-repair","status":"publish","type":"post","link":"https:\/\/www.kennihans.com\/blog\/air-conditioning-service\/5-signs-your-ac-needs-repair\/","title":{"rendered":"5 Signs Your AC Needs Repair"},"content":{"rendered":"
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Spring is here, and summer is not far behind. If you\u2019re wondering whether you need expert air conditioning repair<\/a>, it usually means finding and fixing problems in your home\u2019s HVAC<\/a> system, like weak cooling, bad odors, loud noises, excess dust, or age-related wear before your air conditioner stops keeping your home cool. During hot weather, losing cooling can disrupt daily life for Pittsburgh homeowners, so this residential air conditioning repair guidance is written specifically for homes in Pittsburgh, PA.<\/p>\n\n\n\n

The good news is, you can stay ahead of costly repair work by paying attention to the subtle signs that something is wrong. Below, you\u2019ll see the most common clues that your current system needs attention across different kinds of cooling equipment, including heat pumps, from lack of cooling and strange smells to unusual sounds, dust buildup, and the effect an older unit can have on performance. AC repairs<\/a> don’t just pop up overnight without any warning signs. The key is to know what to look for and to contact a real person at our fully licensed team as soon as you notice something is wrong so you can schedule AC repair or service right away with upfront pricing and financing options to help with repair cost.<\/p>\n\n\n\n\n\n\n\n

1. Lack of Cooling <\/h2>\n\n\n\n

If your AC is blowing out warm air, that’s a clear sign that it’s not working as it should. When you hold your hand up to any air vent in your house, the air from your central air system should feel cold. If you feel lukewarm air blowing out while your AC is on, you may have refrigerant issues, including refrigerant leaks, or something else is wrong with your AC. Leaks in or around the unit can also create water problems, and AC leaks can cause significant water damage if they are ignored.<\/p>\n\n\n\n

You want to check multiple air vents and not just one. It’s possible that you have weak airflow if only one air vent is blowing lukewarm air. This can indicate that something is wrong with your ductwork and cool air is not reaching one zone of your home. But if lukewarm air is coming out of all of your air vents, that means you have a bigger problem. Airflow restrictions can also cause poor cooling or a freeze-up, so that is something a professional should diagnose. A professional repair should identify the root cause, not just treat the symptom. Our certified technicians use a detailed inspection and systematic checks as part of our AC repair service to inspect your home’s air conditioning system, restore proper operation, identify issues affecting the cooling system, and make effective repairs to get the system cooling properly again.<\/p>\n\n\n\n

2. Bad Odors<\/h2>\n\n\n\n

Homes can smell bad for a variety of reasons. But if the air blowing out of your air vents is the cause, that means something is wrong inside your AC system. If the smell is musty, mold and mildew may be to blame. If it smells like something is burning, then you may have an electrical problem. Both of these issues pose hazards to your family and need to be addressed sooner rather than later. High humidity inside your home can also worsen mold growth and odors, making timely repair work essential.<\/p>\n\n\n\n

3. Loud Sounds<\/h2>\n\n\n\n

Your AC should never make strange noises or surprising sounds. Any sound that alarms you means that something is wrong. Urgent failures may need residential AC repair outside normal business hours, so if loud sounds or a sudden breakdown happen, schedule service for 24\/7 repair service and fast emergency response. Your AC may make a gentle humming sound and you may hear air blowing through the vents. Sometimes those vents may even rattle when temperatures are changing. But even these sounds can become a problem. If you hear any otherwise normal sounds that increase in loudness or frequency, you need to get the AC checked out. If the unit starts and stops too often, that is one of the common AC problems because short cycling wastes energy, wears down equipment faster, and is something our team addresses with prompt, professional service.<\/p>\n\n\n\n

4. Lots of Dust<\/h2>\n\n\n\n

If you’re having to wipe down surfaces in your home more frequently because they’re getting dusty, your AC is possibly to blame. You may be tempted to think that you’re bringing in more dirt from outdoors, but it’s actually your AC blowing out more particles through the air vents.<\/p>\n\n\n\n

Over time, dust and dirt can get into the system and begin to recirculate through the air. Dust buildup on coils can also block heat transfer, reducing efficiency and increasing the chance of a major repair. The good news is, the solution could be as simple as making sure you change the clogged air filter regularly. Regular maintenance across heating, plumbing, and other HVAC services<\/a> helps prevent this kind of buildup and reduces the chance of costly repairs. Maintenance-plan members may also receive exclusive discounts, adding extra value while helping prevent dust-related and other system issues.<\/p>\n\n\n\n

5. AC Age<\/h2>\n\n\n\n

You also need to take your air conditioner’s age and any signs of aging equipment into consideration. You can expect your AC to last for 10-15 years. With older equipment, repair can become less practical, and replacement is often worth considering if repair cost<\/strong> exceeds 50% of the unit\u2019s value. In Pittsburgh homes, especially historic properties, older ductwork can affect performance and repairs, so look for technicians familiar with older ductwork layouts in Pittsburgh. In the Pittsburgh area and across PA, prioritize contractors with NATE certification, and make sure anyone handling refrigerant holds EPA Section 608 certification. Before any residential service work, request proof of liability and workers’ compensation insurance. For season-long performance and customer satisfaction, repairs should use quality parts and proper installation practices, and typical dispatch fees in Pittsburgh range from $75 to $150. But once you hit that 10-year mark, there’s a greater chance that you will need repairs. During this period of time, you need to pay closer attention to unusual sounds, and potential problems with your air conditioner.<\/p>\n\n\n\n

Common AC Problems<\/strong><\/h2>\n\n\n\n

Common problems that require expert air conditioning repair include refrigerant leaks that reduce cooling efficiency, dust buildup on evaporator and condenser coils that block heat transfer, and short cycling where the AC turns on and off frequently, wasting energy and causing wear. AC leaks can cause significant water damage if not addressed promptly. Unusual noises such as squealing, grinding, or buzzing often indicate mechanical or electrical issues that need professional attention. Additionally, failing compressors, clogged drain lines, and faulty electrical components are frequent causes of system breakdowns. Technicians use systematic diagnostic approaches to identify root causes and ensure repairs address the underlying issues rather than just symptoms.<\/p>\n\n\n\n

When to Get Certified Technicians for Air Conditioning Repair?<\/strong><\/h2>\n\n\n\n

It\u2019s essential to hire certified technicians for any air conditioning repair to ensure your HVAC system is serviced safely and effectively. Look for technicians with NATE certification, which demonstrates advanced industry knowledge and skill. Anyone handling refrigerants must hold EPA Section 608 certification to comply with environmental regulations. Certified professionals are familiar with local challenges, including Pittsburgh\u2019s older ductwork layouts, and use quality parts with proper installation practices. Request proof of liability and workers’ compensation insurance before work begins to protect your property. Choosing certified experts helps you make an informed decision and ensures your HVAC system receives the best possible care for long-term comfort and reliability.<\/p>\n\n\n\n

Contact Kennihan Plumbing & Heating, Inc. today to schedule an appointment<\/a> with our professionals. We treat your home like it’s our grandma’s home.<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Learn about the subtle signs that something is wrong with your AC.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[70],"tags":[39],"class_list":["post-1137","post","type-post","status-publish","format-standard","hentry","category-air-conditioning-service","tag-ac-repair"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/posts\/1137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/comments?post=1137"}],"version-history":[{"count":3,"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/posts\/1137\/revisions"}],"predecessor-version":[{"id":1849,"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/posts\/1137\/revisions\/1849"}],"wp:attachment":[{"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/media?parent=1137"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/categories?post=1137"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kennihans.com\/blog\/wp-json\/wp\/v2\/tags?post=1137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}