{"id":993,"date":"2025-07-07T11:00:00","date_gmt":"2025-07-07T15:00:00","guid":{"rendered":"https:\/\/www.regalplumbinginc.com\/blog\/?p=993"},"modified":"2025-07-11T13:53:58","modified_gmt":"2025-07-11T17:53:58","slug":"common-ac-problems-troubleshooting-tips-and-when-to-call-a-professional-hvac-technician","status":"publish","type":"post","link":"https:\/\/www.regalplumbinginc.com\/blog\/air-conditioning-service\/common-ac-problems-troubleshooting-tips-and-when-to-call-a-professional-hvac-technician\/","title":{"rendered":"Common AC Problems: Troubleshooting Tips and When to Call a Professional HVAC Technician"},"content":{"rendered":"\n<p>When your air conditioner starts acting up during the hot summer months, it can quickly turn from an inconvenience to a major problem if not addressed promptly. Many AC issues are common and can be diagnosed or even fixed by homeowners with some basic troubleshooting. <\/p>\n\n\n\n<p>However, other problems require the expertise of a professional HVAC technician to ensure your system is safe and fully functional. Here\u2019s a guide to common AC problems, simple DIY checks you can try, and clear signs it\u2019s time to call in a pro.<\/p>\n\n\n\n<!--more-->\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.regalplumbinginc.com\/blog\/wp-content\/uploads\/2025\/07\/Guide-to-common-AC-problems.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/www.regalplumbinginc.com\/blog\/wp-content\/uploads\/2025\/07\/Guide-to-common-AC-problems-1024x576.jpg\" alt=\"Guide to common AC problems\" class=\"wp-image-1003\" srcset=\"https:\/\/www.regalplumbinginc.com\/blog\/wp-content\/uploads\/2025\/07\/Guide-to-common-AC-problems-1024x576.jpg 1024w, https:\/\/www.regalplumbinginc.com\/blog\/wp-content\/uploads\/2025\/07\/Guide-to-common-AC-problems-300x169.jpg 300w, https:\/\/www.regalplumbinginc.com\/blog\/wp-content\/uploads\/2025\/07\/Guide-to-common-AC-problems-768x432.jpg 768w, https:\/\/www.regalplumbinginc.com\/blog\/wp-content\/uploads\/2025\/07\/Guide-to-common-AC-problems-1536x864.jpg 1536w, https:\/\/www.regalplumbinginc.com\/blog\/wp-content\/uploads\/2025\/07\/Guide-to-common-AC-problems.jpg 1920w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">1. AC Won\u2019t Turn On<\/h2>\n\n\n\n<p>DIY Troubleshooting Tips:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Check the thermostat batteries: <\/strong>Many thermostats are battery-powered. If your AC won\u2019t start, try replacing the batteries first.<\/li>\n\n\n\n<li><strong>Verify thermostat settings: <\/strong>Make sure your thermostat is set to \u201ccool\u201d and the temperature setting is lower than the room temperature.<\/li>\n\n\n\n<li><strong>Check the circuit breaker:<\/strong> A tripped breaker can cut power to your AC unit. Reset the breaker if necessary.<\/li>\n\n\n\n<li><strong>When to call a professional<\/strong>: If your AC still won\u2019t turn on after these checks, the issue could be a faulty capacitor, a broken compressor, or wiring problems\u2014all of which require professional diagnosis and repair.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">2. Poor Airflow or Weak Cooling<\/h2>\n\n\n\n<p>DIY Troubleshooting Tips:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Change or clean the air filter:<\/strong> A clogged filter restricts airflow and forces your AC to work harder, reducing cooling effectiveness. Replace the filter every 1-3 months during heavy use.<\/li>\n\n\n\n<li><strong>Inspect air vents:<\/strong> Ensure vents and registers are open and not blocked by furniture or curtains.<\/li>\n\n\n\n<li><strong>Clear debris from outdoor unit:<\/strong> Leaves, dirt, and debris can obstruct airflow around the outdoor condenser. Gently clean around the unit to improve efficiency.<\/li>\n\n\n\n<li><strong>When to call a professional:<\/strong> If changing the filter and clearing vents doesn\u2019t improve airflow or cooling, your system might have refrigerant leaks, a failing compressor, or ductwork issues that need professional attention.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">3. Strange Noises From the AC Unit<\/h2>\n\n\n\n<p>DIY Troubleshooting Tips:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Rattling or loose parts: <\/strong>Tighten any loose screws or panels you can safely access.<\/li>\n\n\n\n<li><strong>Clicking sounds<\/strong>: Occasional clicking during startup or shutdown is normal, but constant clicking could indicate relay or electrical issues.<\/li>\n\n\n\n<li><strong>When to call a professional:<\/strong> Grinding, screeching, or banging noises often mean mechanical problems such as a worn motor bearing, damaged fan blades, or compressor failure. Turn off the unit and schedule a service call immediately to avoid further damage.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">5. Water Leaks or Excess Moisture<\/h2>\n\n\n\n<p>DIY Troubleshooting Tips:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Check drain lines:<\/strong> Make sure condensate drain lines aren\u2019t clogged or disconnected. Clearing minor blockages with a wet\/dry vacuum may fix the issue.<\/li>\n\n\n\n<li><strong>Inspect for ice formation: <\/strong>Ice buildup on coils can cause leaks when it melts.<\/li>\n\n\n\n<li><strong>When to call a professional: <\/strong>Persistent leaks often require a professional to check refrigerant levels, clean coils, or fix drainage issues to prevent water damage to your home.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">When DIY Isn\u2019t Enough<\/h2>\n\n\n\n<p>Many small AC issues can be fixed with simple maintenance, but give us a call if you notice:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Persistent or worsening symptoms<\/li>\n\n\n\n<li>Strange or loud noises<\/li>\n\n\n\n<li>Water leaks that won\u2019t stop<\/li>\n\n\n\n<li>Electrical smells or sparks<\/li>\n\n\n\n<li>System not cooling despite basic checks<\/li>\n<\/ul>\n\n\n\n<p><span style=\"font-size: revert; color: initial;\">If your air conditioner is making strange noises, blowing warm air, or not turning on at all, it\u2019s time to call in a professional HVAC technician. Prompt service can prevent further damage, restore comfort quickly, and ensure your system runs safely and efficiently.<\/span><\/p>\n\n\n\n<p class=\"has-text-align-center\"><strong>Contact Regal Plumbing, Heating and AC to <\/strong><a href=\"https:\/\/www.regalplumbinginc.com\/contact\/send-a-message\"><strong>schedule an appointment<\/strong><\/a><strong> for AC services. Committed to Service, Committed to You, Since 1974.<\/strong><br><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Learn about common AC problems, simple DIY checks you can try, and clear signs it\u2019s time to call in a pro.<\/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":[13],"class_list":["post-993","post","type-post","status-publish","format-standard","hentry","category-air-conditioning-service","tag-air-conditioning"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.regalplumbinginc.com\/blog\/wp-json\/wp\/v2\/posts\/993","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.regalplumbinginc.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.regalplumbinginc.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.regalplumbinginc.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.regalplumbinginc.com\/blog\/wp-json\/wp\/v2\/comments?post=993"}],"version-history":[{"count":3,"href":"https:\/\/www.regalplumbinginc.com\/blog\/wp-json\/wp\/v2\/posts\/993\/revisions"}],"predecessor-version":[{"id":1005,"href":"https:\/\/www.regalplumbinginc.com\/blog\/wp-json\/wp\/v2\/posts\/993\/revisions\/1005"}],"wp:attachment":[{"href":"https:\/\/www.regalplumbinginc.com\/blog\/wp-json\/wp\/v2\/media?parent=993"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.regalplumbinginc.com\/blog\/wp-json\/wp\/v2\/categories?post=993"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.regalplumbinginc.com\/blog\/wp-json\/wp\/v2\/tags?post=993"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}