{"id":1509,"date":"2026-04-03T00:12:26","date_gmt":"2026-04-02T16:12:26","guid":{"rendered":"http:\/\/www.ground-mat.com\/blog\/?p=1509"},"modified":"2026-04-03T00:12:26","modified_gmt":"2026-04-02T16:12:26","slug":"how-to-troubleshoot-common-problems-of-the-shrink-film-packing-machine-g118-41fc-a2ad15","status":"publish","type":"post","link":"http:\/\/www.ground-mat.com\/blog\/2026\/04\/03\/how-to-troubleshoot-common-problems-of-the-shrink-film-packing-machine-g118-41fc-a2ad15\/","title":{"rendered":"How to troubleshoot common problems of the Shrink Film Packing Machine &#8211; G118?"},"content":{"rendered":"<p>As a supplier of the Shrink Film Packing Machine &#8211; G118, I understand that users may encounter various common problems during the operation of this machine. In this blog, I will share some practical troubleshooting methods to help you quickly resolve these issues and ensure the normal operation of the machine. <a href=\"https:\/\/www.tjrslspackingmachine.com\/pcking-machine\/heat-shrink-packaging-machine\/shrink-film-packing-machine-g118\/\">Shrink Film Packing Machine-G118<\/a><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.tjrslspackingmachine.com\/uploads\/41962\/small\/auto-shrink-film-packaging-machine40058.png\"><\/p>\n<h3>1. Film Feeding Problems<\/h3>\n<h4>1.1 Film Jamming<\/h4>\n<ul>\n<li><strong>Cause Analysis<\/strong>:\n<ul>\n<li>The film may be too thick or of poor quality, causing it to get stuck in the feeding mechanism.<\/li>\n<li>There could be foreign objects in the film path, such as dust, debris, or small pieces of film left from previous operations.<\/li>\n<li>Incorrect film tension adjustment can also lead to jamming. If the tension is too high, the film may break or get stuck; if it is too low, the film may wrinkle and jam.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Troubleshooting Steps<\/strong>:\n<ul>\n<li>First, stop the machine immediately to prevent further damage.<\/li>\n<li>Check the film quality. If the film is too thick or has defects, replace it with a suitable film.<\/li>\n<li>Inspect the film path for foreign objects. Use a clean brush or compressed air to remove any debris.<\/li>\n<li>Adjust the film tension. Most G118 machines have a tension adjustment knob. Turn it clockwise to increase the tension and counter &#8211; clockwise to decrease it. Make small adjustments and test the machine after each adjustment.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>1.2 Film Not Feeding<\/h4>\n<ul>\n<li><strong>Cause Analysis<\/strong>:\n<ul>\n<li>The film roll may not be properly installed. If the film roll is not centered or is installed in the wrong direction, it will not feed correctly.<\/li>\n<li>The feeding motor may be malfunctioning. This could be due to a loose connection, a blown fuse, or a damaged motor.<\/li>\n<li>The sensors that detect the film position may be dirty or misaligned, preventing the machine from recognizing the film and starting the feeding process.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Troubleshooting Steps<\/strong>:\n<ul>\n<li>Check the film roll installation. Make sure it is centered on the spindle and is installed in the correct direction.<\/li>\n<li>Inspect the feeding motor. Check the electrical connections to ensure they are tight. If the fuse is blown, replace it with a fuse of the correct rating. If the motor is damaged, it may need to be replaced.<\/li>\n<li>Clean the film sensors with a soft, dry cloth. If they are misaligned, adjust them according to the machine&#8217;s manual.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>2. Sealing Problems<\/h3>\n<h4>2.1 Poor Sealing Quality<\/h4>\n<ul>\n<li><strong>Cause Analysis<\/strong>:\n<ul>\n<li>The sealing temperature may be too low or too high. If the temperature is too low, the film will not seal properly; if it is too high, the film may melt or burn.<\/li>\n<li>The sealing pressure may be insufficient. This can cause the film to separate after sealing.<\/li>\n<li>The sealing bar may be dirty or worn. A dirty sealing bar can prevent proper heat transfer, and a worn sealing bar may not apply even pressure.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Troubleshooting Steps<\/strong>:\n<ul>\n<li>Adjust the sealing temperature. Refer to the machine&#8217;s manual for the recommended temperature range for the specific film you are using. Make small adjustments and test the sealing quality after each adjustment.<\/li>\n<li>Check the sealing pressure. Most G118 machines have a pressure adjustment mechanism. Increase the pressure gradually until the sealing quality improves.<\/li>\n<li>Clean the sealing bar with a non &#8211; abrasive cleaner. If the sealing bar is worn, it may need to be replaced.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>2.2 Sealing Bar Not Heating<\/h4>\n<ul>\n<li><strong>Cause Analysis<\/strong>:\n<ul>\n<li>The heating element in the sealing bar may be damaged. This can be due to overheating, short &#8211; circuits, or normal wear and tear.<\/li>\n<li>The temperature controller may be malfunctioning. It may not be sending the correct signals to the heating element.<\/li>\n<li>There could be a problem with the electrical connections to the sealing bar. Loose or corroded connections can prevent the heating element from receiving power.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Troubleshooting Steps<\/strong>:\n<ul>\n<li>Check the heating element. Use a multimeter to test its resistance. If the resistance is outside the normal range, the heating element needs to be replaced.<\/li>\n<li>Inspect the temperature controller. Check for any error messages or abnormal readings. If necessary, reset the controller or replace it.<\/li>\n<li>Examine the electrical connections to the sealing bar. Tighten any loose connections and clean any corroded terminals.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>3. Shrinkage Problems<\/h3>\n<h4>3.1 Uneven Shrinkage<\/h4>\n<ul>\n<li><strong>Cause Analysis<\/strong>:\n<ul>\n<li>The heat distribution in the shrink tunnel may be uneven. This can be due to blocked air vents, a malfunctioning fan, or improper positioning of the product in the tunnel.<\/li>\n<li>The film may not be of uniform thickness. Thicker areas of the film will shrink less than thinner areas.<\/li>\n<li>The speed of the conveyor belt may be too fast or too slow. If the speed is too fast, the film may not have enough time to shrink properly; if it is too slow, the film may over &#8211; shrink.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Troubleshooting Steps<\/strong>:\n<ul>\n<li>Check the air vents in the shrink tunnel. Make sure they are not blocked by debris. Clean the vents if necessary.<\/li>\n<li>Inspect the fan in the shrink tunnel. Ensure it is working properly and is providing adequate air circulation.<\/li>\n<li>Check the film quality. If the film has thickness variations, replace it with a more uniform film.<\/li>\n<li>Adjust the conveyor belt speed. Refer to the machine&#8217;s manual for the recommended speed range for the specific film and product.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>3.2 Over &#8211; Shrinkage or Under &#8211; Shrinkage<\/h4>\n<ul>\n<li><strong>Cause Analysis<\/strong>:\n<ul>\n<li>The temperature in the shrink tunnel may be too high or too low. High temperatures can cause over &#8211; shrinkage, while low temperatures can result in under &#8211; shrinkage.<\/li>\n<li>The dwell time in the shrink tunnel may be too long or too short. If the product stays in the tunnel for too long, it will over &#8211; shrink; if it stays for too short a time, it will under &#8211; shrink.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Troubleshooting Steps<\/strong>:\n<ul>\n<li>Adjust the temperature in the shrink tunnel. Refer to the machine&#8217;s manual for the recommended temperature range for the specific film and product.<\/li>\n<li>Adjust the dwell time. This can usually be done by adjusting the conveyor belt speed or the length of the shrink tunnel.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>4. Electrical Problems<\/h3>\n<h4>4.1 Machine Not Starting<\/h4>\n<ul>\n<li><strong>Cause Analysis<\/strong>:\n<ul>\n<li>The power supply may be interrupted. This could be due to a tripped circuit breaker, a blown fuse, or a problem with the electrical outlet.<\/li>\n<li>The control panel may be malfunctioning. There could be a software issue or a hardware failure.<\/li>\n<li>The safety interlocks may be engaged. These interlocks are designed to prevent the machine from starting if certain conditions are not met, such as the door being open.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Troubleshooting Steps<\/strong>:\n<ul>\n<li>Check the power supply. Make sure the circuit breaker is not tripped and the fuse is not blown. Test the electrical outlet with another device to ensure it is working.<\/li>\n<li>If the control panel is not working, try resetting it. Refer to the machine&#8217;s manual for the reset procedure. If the problem persists, it may be a hardware issue, and professional repair may be required.<\/li>\n<li>Check the safety interlocks. Make sure all doors and guards are closed properly.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h4>4.2 Electrical Short &#8211; Circuits<\/h4>\n<ul>\n<li><strong>Cause Analysis<\/strong>:\n<ul>\n<li>There may be exposed wires or loose connections in the electrical system. This can cause a short &#8211; circuit and potentially damage the machine.<\/li>\n<li>Moisture or water may have entered the electrical components. This can cause corrosion and short &#8211; circuits.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Troubleshooting Steps<\/strong>:\n<ul>\n<li>Inspect the electrical system for exposed wires or loose connections. Tighten any loose connections and repair or replace any damaged wires.<\/li>\n<li>If moisture is suspected, dry the electrical components thoroughly. If the damage is severe, it may be necessary to replace the affected components.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<h3>Conclusion<\/h3>\n<p><img decoding=\"async\" src=\"https:\/\/www.tjrslspackingmachine.com\/uploads\/41962\/small\/plastic-cutting-and-sealing-machine3706c.jpg\"><\/p>\n<p>By following these troubleshooting methods, you can effectively resolve most common problems of the Shrink Film Packing Machine &#8211; G118. However, if you encounter a problem that you cannot solve, do not hesitate to contact us. Our professional technical support team is always ready to assist you.<\/p>\n<p><a href=\"https:\/\/www.tjrslspackingmachine.com\/pcking-machine\/labeling-machine\/\">Labeling Machine<\/a> If you are interested in our Shrink Film Packing Machine &#8211; G118 or have any other questions about our products, please feel free to contact us for procurement and negotiation. We are committed to providing high &#8211; quality products and excellent after &#8211; sales service to meet your needs.<\/p>\n<h3>References<\/h3>\n<ul>\n<li>User Manual of Shrink Film Packing Machine &#8211; G118<\/li>\n<li>Technical documents related to shrink film packing technology<\/li>\n<\/ul>\n<hr>\n<p><a href=\"https:\/\/www.tjrslspackingmachine.com\/\">Sunrise (Tianjin) Packaging Machinery Co., Ltd.<\/a><br \/>We&#8217;re well-known as one of the leading shrink film packing machine-g118 manufacturers and suppliers in China. If you&#8217;re going to buy customized shrink film packing machine-g118 made in China, welcome to get more information from our factory.<br \/>Address: Factory No.7, Jingjun Industrial Park, No.6 Jingbin Avenue, Wuqing District, Tianjin City,China<br \/>E-mail: sunrisepacking@tjrsls.cn<br \/>WebSite: <a href=\"https:\/\/www.tjrslspackingmachine.com\/\">https:\/\/www.tjrslspackingmachine.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>As a supplier of the Shrink Film Packing Machine &#8211; G118, I understand that users may &hellip; <a title=\"How to troubleshoot common problems of the Shrink Film Packing Machine &#8211; G118?\" class=\"hm-read-more\" href=\"http:\/\/www.ground-mat.com\/blog\/2026\/04\/03\/how-to-troubleshoot-common-problems-of-the-shrink-film-packing-machine-g118-41fc-a2ad15\/\"><span class=\"screen-reader-text\">How to troubleshoot common problems of the Shrink Film Packing Machine &#8211; G118?<\/span>Read more<\/a><\/p>\n","protected":false},"author":553,"featured_media":1509,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1472],"class_list":["post-1509","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-shrink-film-packing-machine-g118-4043-a2d857"],"_links":{"self":[{"href":"http:\/\/www.ground-mat.com\/blog\/wp-json\/wp\/v2\/posts\/1509","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.ground-mat.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.ground-mat.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.ground-mat.com\/blog\/wp-json\/wp\/v2\/users\/553"}],"replies":[{"embeddable":true,"href":"http:\/\/www.ground-mat.com\/blog\/wp-json\/wp\/v2\/comments?post=1509"}],"version-history":[{"count":0,"href":"http:\/\/www.ground-mat.com\/blog\/wp-json\/wp\/v2\/posts\/1509\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.ground-mat.com\/blog\/wp-json\/wp\/v2\/posts\/1509"}],"wp:attachment":[{"href":"http:\/\/www.ground-mat.com\/blog\/wp-json\/wp\/v2\/media?parent=1509"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.ground-mat.com\/blog\/wp-json\/wp\/v2\/categories?post=1509"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.ground-mat.com\/blog\/wp-json\/wp\/v2\/tags?post=1509"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}