[{"@context":"https:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/homeinspectionsovercoffee.com\/what-we-look-for-and-what-we-dont-cooling-systems-testing-limitations-and-whats-in-scope\/#BlogPosting","mainEntityOfPage":"https:\/\/homeinspectionsovercoffee.com\/what-we-look-for-and-what-we-dont-cooling-systems-testing-limitations-and-whats-in-scope\/","headline":"What We Look For (And What We Don\u2019t): Cooling Systems \u2014 Testing, Limitations, and What\u2019s in Scope","name":"What We Look For (And What We Don\u2019t): Cooling Systems \u2014 Testing, Limitations, and What\u2019s in Scope","description":"What We Look For (And What We Don\u2019t): Cooling Systems \u2014 Testing, Limitations, and What\u2019s in Scope The first thing most people ask in summer: \u201cDoes the A\/C work?\u201d And fair enough\u2014if you're touring homes in July, that cool blast of air matters. So during the inspection, I absolutely test the cooling system. But here\u2019s the truth: I\u2019m not an HVAC tech. I\u2019m here to verify operation, not rebuild the compressor in your driveway. Cooling Systems I Commonly Inspect Here\u2019s what I\u2019m trained to inspect\u2014and how I approach it: Central air conditioning \u2013 I activate it using the thermostat (if weather permits), confirm the system runs, and check for cold airflow at supply vents. I also inspect the exterior condenser unit visually. Heat pumps (in cooling mode) \u2013 Same process as central A\/C. These may also serve as your heating system, depending on setup. Mini-split systems (ductless) \u2013 I test each head unit (wall-mounted unit) for operation and cool airflow. Wall A\/C units \u2013 Tested for operation and airflow, if accessible and plugged in. Swamp coolers \/ evaporative coolers \u2013 These are common in dry climates. I confirm they turn on and blow air, but I don\u2019t test pad condition, water flow, or drain systems. What I\u2019m Looking For\u2014And What I\u2019m Not \u2705 I\u2019m looking for: systems that activate with the thermostat, air that feels cool at vents, unusual noises, water discharge from condensate lines, and condenser unit condition. \u274c I\u2019m not looking to: measure refrigerant pressure, dismantle the unit, remove panels, verify SEER ratings, or confirm BTU performance. That\u2019s a job for an HVAC tech. Weather and Safety Limitations If it\u2019s cold outside, I won\u2019t run the A\/C. Why? Running cooling systems below ~60\u00b0F can damage the compressor. In that case, I\u2019ll note the limitation and recommend that the buyer test the system as soon as outdoor temperatures allow. How I Use Thermal Imaging to Verify Cooling I often use a thermal camera or laser thermometer to compare return and supply temperatures. This helps verify that the system is actually cooling\u2014not just making noise. A 15\u201320\u00b0F difference between return and supply is typically a good sign. About Swamp Coolers (Evaporative Coolers) If you're from a humid climate, you might not have seen one before. Evaporative coolers are common in dry regions. They work by blowing air across a wet pad to cool the space. They\u2019re not true A\/C\u2014they don\u2019t use refrigerant, and they struggle in humid conditions. I\u2019ll confirm operation if the unit is on and accessible, but I won\u2019t test water flow, pad condition, or duct routing. Those systems are quirky, and they require specific maintenance that\u2019s outside the scope of a general home inspection. FAQs: Cooling System Inspection Do you test the air conditioner? Yes\u2014if weather and access allow. I activate the system using normal controls and check for cool airflow from vents or wall units. Can you tell if the A\/C is low on refrigerant? No. That requires specialized gauges and training. If the system runs but doesn\u2019t cool properly, I\u2019ll recommend an HVAC evaluation. Why won\u2019t you test the A\/C when it\u2019s cold outside? Running an A\/C system in cold weather can damage the compressor. If it\u2019s below 60\u00b0F, I\u2019ll document the limitation and explain next steps. Do you test swamp coolers? I test basic function\u2014turning it on and verifying airflow. But I don\u2019t assess water distribution, pad condition, or deeper system mechanics. \u2192 Next up: Post 19: Ducts & Vents \u2014 The Forgotten System That Impacts Your Comfort \u2190 Previously: Post 17: Heating Systems \u2014 From Pilot Lights to Furnace Filters Curious what it\u2019s like to schedule your own home inspection with us?","datePublished":"2025-07-02","dateModified":"2025-07-02","author":{"@type":"Person","@id":"https:\/\/homeinspectionsovercoffee.com\/author\/curtis\/#Person","name":"Kloc Curtis","url":"https:\/\/homeinspectionsovercoffee.com\/author\/curtis\/","identifier":6,"description":"Curtis Kloc is a U.S. Navy veteran and seasoned entrepreneur with over two decades of experience in business development, inspections, and technical systems. He has built and sold multiple six- and seven-figure home inspection and environmental services companies, including HERO Inspections & Environmental and Elite Analysis. Curtis is the founder of Inspections Over Coffee, a nationally expanding franchise known for its white-glove service, inspector training systems, and streamlined operational workflows.\r\n\r\nWith deep roots in nuclear engineering from his time as a Machinist Mate and Engineering Laboratory Technician aboard two U.S. Navy aircraft carriers, Curtis brings unmatched precision and discipline to every business he runs. He is certified and licensed in home inspection, mold assessment, asbestos inspection, and environmental testing, and is a member of NACHI since 2006. Curtis now leads AI automation initiatives through Nexation.ai, helping businesses eliminate busywork and refocus on what matters most\u2014client relationships, growth, and results.","image":{"@type":"ImageObject","@id":"https:\/\/homeinspectionsovercoffee.com\/wp-content\/uploads\/2025\/06\/1630069397452.webp","url":"https:\/\/homeinspectionsovercoffee.com\/wp-content\/uploads\/2025\/06\/1630069397452.webp","height":96,"width":96}},"publisher":{"@type":"Person","name":"Curtis Kloc","image":{"@type":"ImageObject","@id":"https:\/\/homeinspectionsovercoffee.com\/wp-content\/uploads\/2024\/10\/site-logo.png","url":"https:\/\/homeinspectionsovercoffee.com\/wp-content\/uploads\/2024\/10\/site-logo.png","width":512,"height":512}},"image":{"@type":"ImageObject","@id":"https:\/\/homeinspectionsovercoffee.com\/wp-content\/uploads\/2025\/07\/home-inspection-blog-18.png","url":"https:\/\/homeinspectionsovercoffee.com\/wp-content\/uploads\/2025\/07\/home-inspection-blog-18.png","height":736,"width":1312},"url":"https:\/\/homeinspectionsovercoffee.com\/what-we-look-for-and-what-we-dont-cooling-systems-testing-limitations-and-whats-in-scope\/","about":["Uncategorized"],"wordCount":637,"articleBody":"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tWhat We Look For (And What We Don\u2019t): Cooling Systems \u2014 Testing, Limitations, and What\u2019s in ScopeThe first thing most people ask in summer: \u201cDoes the A\/C work?\u201d And fair enough\u2014if you're touring homes in July, that cool blast of air matters. So during the inspection, I absolutely test the cooling system. But here\u2019s the truth: I\u2019m not an HVAC tech. I\u2019m here to verify operation, not rebuild the compressor in your driveway.Cooling Systems I Commonly InspectHere\u2019s what I\u2019m trained to inspect\u2014and how I approach it:  Central air conditioning \u2013 I activate it using the thermostat (if weather permits), confirm the system runs, and check for cold airflow at supply vents. I also inspect the exterior condenser unit visually.  Heat pumps (in cooling mode) \u2013 Same process as central A\/C. These may also serve as your heating system, depending on setup.  Mini-split systems (ductless) \u2013 I test each head unit (wall-mounted unit) for operation and cool airflow.  Wall A\/C units \u2013 Tested for operation and airflow, if accessible and plugged in.  Swamp coolers \/ evaporative coolers \u2013 These are common in dry climates. I confirm they turn on and blow air, but I don\u2019t test pad condition, water flow, or drain systems.What I\u2019m Looking For\u2014And What I\u2019m Not  \u2705 I\u2019m looking for: systems that activate with the thermostat, air that feels cool at vents, unusual noises, water discharge from condensate lines, and condenser unit condition.  \u274c I\u2019m not looking to: measure refrigerant pressure, dismantle the unit, remove panels, verify SEER ratings, or confirm BTU performance. That\u2019s a job for an HVAC tech.Weather and Safety LimitationsIf it\u2019s cold outside, I won\u2019t run the A\/C. Why? Running cooling systems below ~60\u00b0F can damage the compressor. In that case, I\u2019ll note the limitation and recommend that the buyer test the system as soon as outdoor temperatures allow.How I Use Thermal Imaging to Verify CoolingI often use a thermal camera or laser thermometer to compare return and supply temperatures. This helps verify that the system is actually cooling\u2014not just making noise. A 15\u201320\u00b0F difference between return and supply is typically a good sign.About Swamp Coolers (Evaporative Coolers)If you're from a humid climate, you might not have seen one before. Evaporative coolers are common in dry regions. They work by blowing air across a wet pad to cool the space. They\u2019re not true A\/C\u2014they don\u2019t use refrigerant, and they struggle in humid conditions.I\u2019ll confirm operation if the unit is on and accessible, but I won\u2019t test water flow, pad condition, or duct routing. Those systems are quirky, and they require specific maintenance that\u2019s outside the scope of a general home inspection.FAQs: Cooling System InspectionDo you test the air conditioner?Yes\u2014if weather and access allow. I activate the system using normal controls and check for cool airflow from vents or wall units.Can you tell if the A\/C is low on refrigerant?No. That requires specialized gauges and training. If the system runs but doesn\u2019t cool properly, I\u2019ll recommend an HVAC evaluation.Why won\u2019t you test the A\/C when it\u2019s cold outside?Running an A\/C system in cold weather can damage the compressor. If it\u2019s below 60\u00b0F, I\u2019ll document the limitation and explain next steps.Do you test swamp coolers?I test basic function\u2014turning it on and verifying airflow. But I don\u2019t assess water distribution, pad condition, or deeper system mechanics.\u2192 Next up: Post 19: Ducts & Vents \u2014 The Forgotten System That Impacts Your Comfort\u2190 Previously: Post 17: Heating Systems \u2014 From Pilot Lights to Furnace FiltersCurious what it\u2019s like to schedule your own home inspection with us?\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t"},{"@context":"https:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"What We Look For (And What We Don\u2019t): Cooling Systems \u2014 Testing, Limitations, and What\u2019s in Scope","item":"https:\/\/homeinspectionsovercoffee.com\/what-we-look-for-and-what-we-dont-cooling-systems-testing-limitations-and-whats-in-scope\/#breadcrumbitem"}]}]