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} .budds-legacy-blog .lb-prose th { background: var(--lb-navy); padding: 11px 14px; color: var(--lb-white); font-weight: 700; text-align: left; } .budds-legacy-blog .lb-prose td { border: 1px solid var(--lb-grey-md); padding: 11px 14px; vertical-align: top; } .budds-legacy-blog .lb-prose tbody tr:nth-child(even) { background: var(--lb-grey-lt); } @media (max-width: 768px) { .budds-legacy-blog .lb-layout { grid-template-columns: 1fr; padding: 48px 20px; } .budds-legacy-blog .lb-sidebar { display: none; } } @media (max-width: 640px) { .budds-legacy-blog .lb-hero { padding: 140px 20px 80px; } .budds-legacy-blog .lb-hero h1 { font-size: 30px; } } @media (prefers-reduced-motion: reduce) { .budds-legacy-blog .lb-toc nav a, .budds-legacy-blog .lb-service-card a, .budds-legacy-blog .lb-cta__button { transition: none; } } </style> <div class="budds-legacy-blog"> <section class="lb-hero"> <img class="lb-hero__img" src="https://cdn.prod.website-files.com/6514fbcb26dcd604df81bfe0/686d809f272e8a1b5dc211fe_4.png" alt="" aria-hidden="true"> <div class="lb-hero__content"> <span class="lb-eyebrow">Air Conditioning</span> <h1>AC Running but Not Cooling? Here's What Could Be Causing It</h1> <p class="lb-hero__meta">July 8, 2025 &nbsp;&middot;&nbsp; 3 min read &nbsp;&middot;&nbsp; Richwell Amaro</p> </div> </section> <section class="lb-outer"> <div class="lb-layout"> <main class="lb-prose"> <!-- SOURCE_BODY_START --> <p id="">At the Jersey Shore, your air conditioning system works overtime in the summer—especially in rental properties and second homes. When your AC is running but still not cooling the house, it can feel like you're wasting energy and money with no relief. The good news: there are a few common reasons behind this issue, and most are fixable with the right care.</p><h3 id=""><strong id="">1. Clogged or Dirty Air Filters</strong></h3><p id="">Filters can become clogged with sand, dust, and debris faster than normal in coastal homes. A dirty filter restricts airflow and forces your system to work harder, often with poor results. It can also lead to frozen coils and system inefficiency.</p><p id=""><strong id="">Fix:</strong> Check and replace your filter every 1-3 months. In homes near the water, it's smart to check even more frequently during peak summer.</p><figure class="w-richtext-figure-type-image w-richtext-align-center" data-rt-type="image" data-rt-align="center"><div><img alt="A clogged air conditioning filter." src="https://cdn.prod.website-files.com/6514fbcb26dcd604df81bfe0/686d80ec272e8a1b5dc24422_1.png" loading="lazy"></div><figcaption>Filters can become clogged with sand, dust, and debris faster than normal in coastal homes.</figcaption></figure><h3 id=""><strong id="">2. Frozen Evaporator Coils</strong></h3><p id="">Low airflow from blocked filters or ductwork can cause the evaporator coils to freeze over. A frozen coil can't absorb heat properly, which means your system will run without cooling the air.</p><p id=""><strong id="">Fix:</strong> Turn off the system to allow coils to thaw. If freezing recurs, it could indicate a deeper airflow or refrigerant issue that needs professional attention.</p><h3 id=""><strong id="">3. Outdoor Unit Issues</strong></h3><p id="">The condenser unit outside your home plays a critical role in releasing heat from your system. At the shore, sand, yard debris, or objects stored near the unit can restrict airflow. Corrosion from salt air can also wear on the components.</p><p id=""><strong id="">Fix:</strong> Keep the area around the condenser clear, and rinse off salt buildup periodically. A technician should also inspect the unit annually for corrosion and wear.</p><figure class="w-richtext-figure-type-image w-richtext-align-center" data-rt-type="image" data-rt-align="center"><div><img alt="__wf_reserved_inherit" src="https://cdn.prod.website-files.com/6514fbcb26dcd604df81bfe0/686d81122f7def3af7eda04c_3.png" loading="lazy"></div><figcaption>Sand, yard debris, or even objects stored near the unit outside can restrict airflow. </figcaption></figure><h3 id=""><strong id="">4. Low Refrigerant or a Leak</strong></h3><p id="">If your system is low on refrigerant, it won’t be able to effectively cool your home, even if it’s running constantly. Refrigerant levels don’t drop naturally—so if they’re low, there’s likely a leak.</p><p id=""><strong id="">Fix:</strong> You’ll need a licensed HVAC technician to inspect the system, locate any leaks, and recharge the refrigerant to proper levels.</p><h3 id=""><strong id="">5. Thermostat and Sensor Problems</strong></h3><p id="">Sometimes the issue isn’t with the system itself, but with the device controlling it. Misplaced thermostats, sensor malfunctions, or outdated controls can cause your AC to run at the wrong times—or never reach the correct temperature.</p><p id=""><strong id="">Fix:</strong> Make sure your thermostat is away from heat sources like windows or lamps. If it’s outdated, consider upgrading to a programmable or smart model for better control.</p><h2 id=""><strong id="">Why a Professional Check-Up Matters</strong></h2><p id="">If you're unsure what's wrong or don’t have time to troubleshoot, a professional inspection is the smartest move. <a id="" href="https://www.buddsplumbing.com/">Budd’s Plumbing &amp; HVAC</a> offers a comprehensive <strong id="">$149 A/C Check-Up</strong> designed for shore homeowners.</p><p id="">This service includes:</p><ul id=""><li id="">Full system inspection, including indoor and outdoor components<br><br></li><li id="">Filter check and replacement recommendation<br><br></li><li id="">Coil and condenser evaluation<br><br></li><li id="">Refrigerant level check<br><br></li><li id="">Thermostat and control settings review<br><br></li><li id="">Efficiency analysis<br><br></li><li id="">Drain line and electrical connection check<br><br></li><li id="">Recommendations for minor repairs before they become major problems<br><br></li></ul><p id="">It’s a proactive step that can save you money, prevent breakdowns, and extend the life of your system—especially in salt-heavy air and high-humidity conditions typical of Cape May and Atlantic County.</p><figure class="w-richtext-figure-type-image w-richtext-align-center" data-rt-type="image" data-rt-align="center"><div><img alt="__wf_reserved_inherit" src="https://cdn.prod.website-files.com/6514fbcb26dcd604df81bfe0/686d809f272e8a1b5dc211fe_4.png" loading="lazy"></div><figcaption>Not sure why your AC isn't cooling?&nbsp;Reach out to Budd's Plumbing to schedule a $149 A/C Check-Up</figcaption></figure><h2 id=""><strong id="">Your Local Experts for Coastal HVAC</strong></h2><p id="">The shore presents unique HVAC challenges. Whether you're a full-time resident or own a second home or rental property,<a id="" href="https://www.buddsplumbing.com/"> <strong id="">Budd’s Plumbing &amp; HVAC</strong></a> understands what your system needs to stay cool, efficient, and reliable.</p><p id="">Don’t wait until your system fails in the middle of a heatwave.<br> <strong id="">Call 609-465-3759</strong> to schedule your <strong id="">$149 A/C Check-Up</strong>, or visit<a id="" href="https://www.buddsplumbing.com/"> <strong id="">buddsplumbing.com</strong></a> to request service.</p> <!-- SOURCE_BODY_END --> </main> <aside class="lb-sidebar"> <div class="lb-toc"> <p class="lb-toc__label">In This Article</p> <nav aria-label="Article contents"></nav> </div> <div class="lb-service-card"> <h2>Need professional help?</h2> <p>We serve Cape May County and Atlantic County, NJ &mdash; licensed, local, and ready.</p> <a href="/contact-us">Request Service</a> </div> <div class="lb-phone-card"> <span>Call us directly</span> <a href="tel:+16094653759">(609) 465-3759</a> </div> </aside> </div> </section> <section class="lb-cta"> <div class="lb-cta__inner"> <h2>Schedule Your $149 A/C Check-Up</h2> <a class="lb-cta__button" href="/contact-us">Request Service</a> </div> </section> <section class="lb-footer-band"> <p>Faith &nbsp;&middot;&nbsp; Craftsmanship &nbsp;&middot;&nbsp; Accountability</p> <a href="tel:+16094653759">(609) 465-3759</a> </section> </div> <script> (function () { var roots = document.querySelectorAll('.budds-legacy-blog'); roots.forEach(function (root) { var headings = root.querySelectorAll('.lb-prose h2'); var nav = root.querySelector('.lb-toc nav'); if (!nav || !headings.length) return; function slugify(value) { return value.toLowerCase().replace(/[^a-z0-9]+/g, '-').replace(/^-|-$/g, ''); } var used = {}; headings.forEach(function (heading, index) { var base = 'lb-section-' + (slugify(heading.textContent) || (index + 1)); var id = base; var suffix = 2; while (used[id]) { id = base + '-' + suffix; suffix += 1; } used[id] = true; heading.id = id; var link = document.createElement('a'); link.href = '#' + id; link.textContent = heading.textContent; nav.appendChild(link); }); var links = nav.querySelectorAll('a'); if (!links.length) return; links[0].classList.add('lb-toc-active'); if (!('IntersectionObserver' in window)) return; var observer = new IntersectionObserver(function (entries) { entries.forEach(function (entry) { if (!entry.isIntersecting) return; links.forEach(function (link) { link.classList.remove('lb-toc-active'); }); var active = nav.querySelector('a[href="#' + entry.target.id + '"]'); if (active) active.classList.add('lb-toc-active'); }); }, { rootMargin: '-20% 0px -70% 0px' }); headings.forEach(function (heading) { observer.observe(heading); }); }); }()); </script> <script type="application/ld+json">{"@context":"https://schema.org","@graph":[{"@type":"BlogPosting","headline":"AC Running but Not Cooling? 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