{"id":15940,"date":"2025-04-14T10:35:47","date_gmt":"2025-04-14T17:35:47","guid":{"rendered":"https:\/\/www.appliancepartspros.com\/b\/?p=15940"},"modified":"2026-07-14T11:22:31","modified_gmt":"2026-07-14T18:22:31","slug":"testing-the-thermistor-on-a-frigidaire-refrigerator-that-is-not-cooling","status":"publish","type":"post","link":"https:\/\/www.appliancepartspros.com\/b\/testing-the-thermistor-on-a-frigidaire-refrigerator-that-is-not-cooling\/","title":{"rendered":"Frigidaire refrigerator not cooling? Here&#8217;s how to test the thermistor"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>If your Frigidaire fridge isn\u2019t cooling and the compressor won\u2019t run, testing the thermistor is a great place to start, here\u2019s how to do it.<\/p>\n","protected":false},"author":3,"featured_media":16012,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Testing the thermistor on a Frigidaire refrigerator that is not cooling","_yoast_wpseo_title":"%%title%% %%page%%","_yoast_wpseo_metadesc":"If your Frigidaire fridge isn\u2019t cooling and the compressor won\u2019t run, testing the thermistor is a great place to start, here\u2019s how to do it.","_aviaLayoutBuilderCleanData":"[av_image src='https:\/\/www.appliancepartspros.com\/b\/wp-content\/uploads\/2025\/04\/Updated-blog-rectangle-82.jpg' attachment='16013' attachment_size='full' copyright='' caption='' styling='' align='center' font_size='' overlay_opacity='0.4' overlay_color='#000000' overlay_text_color='#ffffff' animation='no-animation' hover='' appearance='' link='' target='' title_attr='' alt_attr='' lazy_loading='disabled' id='' custom_class='' av_element_hidden_in_editor='0' av_uid='av-119bt2c' admin_preview_bg=''][\/av_image]\r\n\r\n[av_textblock size='' av-medium-font-size='' av-small-font-size='' av-mini-font-size='' font_color='' color='' id='' custom_class='' av_uid='av-m9d2547v' admin_preview_bg='']\r\n<span style=\"font-weight: 400;\">If your Frigidaire refrigerator isn't cooling and the compressor is not running, the problem may be with the thermistor. This part is responsible for measuring the temperature inside the refrigerator and communicating that information to the control board.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Before you call for a repair technician, you can quickly test the part yourself to determine if it's the source of the issue. By following the steps outlined in this guide, you'll have the knowledge to troubleshoot the problem and get your refrigerator back up and running.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">If you find out that you need any replacement parts for your appliance, you can enter your <\/span><a href=\"https:\/\/www.appliancepartspros.com\/b\/how-to-find-your-appliances-model-number\/\"><b>model number<\/b><\/a><span style=\"font-weight: 400;\"> at <\/span><a href=\"https:\/\/www.appliancepartspros.com\/\"><b>AppliancePartsPros.com<\/b><\/a><span style=\"font-weight: 400;\"> to order them. Most orders arrive in just two business days, and we have thousands of free guides to show you how to install your new parts.<\/span>\r\n\r\n<em><span style=\"font-weight: 400;\">The troubleshooting information provided in this article is based on model number FRS6LF7FS4 and may not apply to your specific appliance model. We recommend consulting your manufacturer's documentation or<\/span><a href=\"https:\/\/www.appliancepartspros.com\/repair-help\/\"> <b>contact us<\/b><\/a><span style=\"font-weight: 400;\"> with any questions.\u00a0<\/span><\/em>\r\n\r\n[lwptoc numeration=\"none\"]\r\n<p style=\"font-size:14.5px;margin:14px 0;font-family:system-ui,-apple-system,sans-serif\"><a href=\"#app-safety-notes\">Full safety notes below<\/a><\/p>\n\n<h2><span style=\"font-weight: 400;\">Tools and materials<\/span><\/h2>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">1\/4\" Nutdriver<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Multimeter<\/span><\/li>\r\n<\/ul>\r\n<em><span style=\"font-weight: 400;\">The specific tools required may vary depending on the model of your appliance and the type of fasteners used on it.\u00a0\u00a0<\/span><\/em>\r\n\r\n<b>Read more:\u00a0 <\/b><a href=\"https:\/\/www.appliancepartspros.com\/b\/how-to-replace-the-thermistor-in-a-frigidaire-fridge\/\"><b>How to replace the thermistor in a Frigidaire fridge<\/b><\/a>\r\n<h2><span style=\"font-weight: 400;\">Safety precautions<\/span><\/h2>\r\n<span style=\"font-weight: 400;\">When working on any appliance, remember to keep safety first. Here are some tips to keep in mind:\u00a0<\/span>\r\n<ul>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Always power off and unplug your appliance or switch off the circuit breaker before attempting any maintenance or replacement work. This keeps you safe by preventing any risk of injury from electric shock.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Wear insulated work gloves to protect your hands from sharp metal parts, pinching hazards and debris.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Take your time and don\u2019t rush while working to prevent accidents and personal injuries.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Work in a well-lit area so you can clearly see and access the interior parts.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Clear your workspace of clutter and other obstacles.\u00a0\u00a0<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Be gentle when handling or removing parts. Excessive force might damage the appliance or cause injury.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Wear safety glasses when working with chemicals, dust or cleaning large debris to prevent injury.\u00a0<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If the appliance has recently been used, give it plenty of time for any heating parts to cool down before working on it.\u00a0<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Take pictures or make a note of wiring terminals or other connections before disconnecting to prevent any problems with reassembly.<\/span><\/li>\r\n<\/ul>\r\n<b>Read more:\u00a0 <\/b><a href=\"https:\/\/www.appliancepartspros.com\/b\/refrigerator-section-in-frigidaire-fridge-not-cooling-a-troubleshooting-guide\/\"><b>Refrigerator section in Frigidaire fridge not cooling: A troubleshooting guide<\/b><\/a>\r\n<h2><span style=\"font-weight: 400;\">Testing process<\/span><\/h2>\r\n<h3><span style=\"font-weight: 400;\">Step 1: Access the control board<\/span><\/h3>\r\n<ol>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Remove the three 1\/4\" screws under the control panel. These will be recessed into the panel.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Take out the filter.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Remove the 1\/4\" screw on the right side behind where the filter is, at the back of the refrigerator at the top.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Take out the 1\/4\" screw under the cover at the back where the filter would be.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Remove the two 1\/4\" recessed screws on the left side corner of the control housing.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Drop the control housing down to access the control board.<\/span><\/li>\r\n<\/ol>\r\n<h3><span style=\"font-weight: 400;\">Step 2: Test the refrigerator thermistor<\/span><\/h3>\r\n<ol>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Set your multimeter to the resistance (\u03a9) setting, which looks like an upside-down horseshoe.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Disconnect the thermistor harness.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Place one multimeter lead into one side of the connector and the other lead on the other side.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">At room temperature, you should get a resistance reading of approximately 10K ohms.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If the resistance is significantly different from 10K ohms, the thermistor needs to be replaced.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">If the refrigerator thermistor checks out, test the freezer thermistor the same way.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Replace the freezer thermistor if the resistance is not within the expected range.<\/span><\/li>\r\n<\/ol>\r\n<h3><span style=\"font-weight: 400;\">Step 3: Reassembly<\/span><\/h3>\r\n<ol>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Lift the control housing and insert the 3 screws under the front.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Put one screw back in behind the filter housing.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Put the cover back over the water lines and insert the screw to hold it in place.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Insert the 2 screws back into the side panel of the control housing.<\/span><\/li>\r\n \t<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Plug the refrigerator back in or turn the breaker back on.<\/span><\/li>\r\n<\/ol>\r\n<b>Read more:\u00a0 <\/b><a href=\"https:\/\/www.appliancepartspros.com\/b\/refrigerator-not-cooling\/\"><b>Why Is My Refrigerator Not Cooling?<\/b><\/a>\r\n<h2><span style=\"font-weight: 400;\">Additional information<\/span><\/h2>\r\n<span style=\"font-weight: 400;\">Thank you for reading! We hope this guide helped you get your Frigidaire refrigerator working again. If you have any other appliance repair needs or projects, don\u2019t hesitate to explore our other troubleshooting guides and videos.\u00a0<\/span>\r\n\r\n<span style=\"font-weight: 400;\">If you need replacement parts or some extra help with ordering them, grab your model number and head over to <\/span><a href=\"https:\/\/www.appliancepartspros.com\/\"><b>AppliancePartsPros.com<\/b><\/a><span style=\"font-weight: 400;\">, where you can chat with a pro, <\/span><a href=\"https:\/\/www.appliancepartspros.com\/b\/\"><b>read our DIY blog<\/b><\/a><span style=\"font-weight: 400;\"> and more.<\/span>\r\n\r\n<span style=\"font-weight: 400;\">Don\u2019t forget to <\/span><a href=\"https:\/\/www.youtube.com\/@appliancepartspros\/videos\"><b>subscribe to us on YouTube<\/b><\/a><span style=\"font-weight: 400;\"> and follow us on <\/span><a href=\"http:\/\/facebook.com\/appliancepartspros\"><b>Facebook<\/b><\/a><span style=\"font-weight: 400;\">, <\/span><a href=\"https:\/\/twitter.com\/applpartspros\"><b>Twitter<\/b><\/a><span style=\"font-weight: 400;\"> and <\/span><a href=\"https:\/\/instagram.com\/appliancepartspros?igshid=OGQ5ZDc2ODk2ZA==\"><b>Instagram<\/b><\/a><span style=\"font-weight: 400;\">!<\/span>\n\n<div id=\"app-safety-notes\" style=\"border:1px solid #E6E6E6;border-radius:8px;overflow:hidden;margin:22px 0;font-family:system-ui,-apple-system,sans-serif\"><div style=\"background:#1C437C;color:#fff;padding:9px 16px;font-weight:700;font-size:15px\">\u26a1&nbsp;Electrical safety \u2014 before you start<\/div><ul style=\"margin:0;padding:14px 20px 14px 38px;font-size:15px;line-height:1.6;color:#1A1A1A;background:#fff\"><li style=\"margin:6px 0\"><b>Disconnect power<\/b> before you start \u2014 unplug it or switch off the breaker, and <b>confirm it's dead<\/b>.<\/li><li style=\"margin:6px 0\">Follow your <b>local electrical code<\/b>.<\/li><li style=\"margin:6px 0\">Anything involving <b>household wiring, outlets, or the breaker panel<\/b> itself is <b>licensed-electrician territory<\/b>.<\/li><\/ul><\/div>\n[\/av_textblock]\r\n\r\n[av_social_share title='Share this entry' buttons='' share_facebook='' share_twitter='' share_whatsapp='' share_pinterest='' share_reddit='' share_linkedin='' share_tumblr='' share_vk='' share_mail='' share_yelp='' yelp_link='https:\/\/www.yelp.com' style='' av-desktop-hide='' av-medium-hide='' av-small-hide='' av-mini-hide='' alb_description='' id='' custom_class='' av_uid='av-w9em1w']\r\n\r\n","_aviaLayoutBuilder_active":"active","footnotes":""},"categories":[84,11],"tags":[6697,6696,1429,6682,6658,6694,6698,6699,6693,6695],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\r\n<title>Frigidaire refrigerator not cooling? 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