{"id":16173,"date":"2025-04-21T12:16:53","date_gmt":"2025-04-21T19:16:53","guid":{"rendered":"https:\/\/www.appliancepartspros.com\/b\/?p=16173"},"modified":"2026-07-14T11:23:55","modified_gmt":"2026-07-14T18:23:55","slug":"should-you-use-a-hard-start-kit-on-your-fridge","status":"publish","type":"post","link":"https:\/\/www.appliancepartspros.com\/b\/should-you-use-a-hard-start-kit-on-your-fridge\/","title":{"rendered":"Should You Use a Hard Start Kit on Your Fridge?"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"

Get the lowdown on hard start kits for fridges, what they do, how to install one, and when they\u2019re a smart solution.<\/p>\n","protected":false},"author":3,"featured_media":16297,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"refrigerator hard start kit","_yoast_wpseo_title":"%%title%% %%page%%","_yoast_wpseo_metadesc":"Get the lowdown on hard start kits for fridges, what they do, how to install one, and when they\u2019re a smart solution.","_aviaLayoutBuilderCleanData":"[av_image src='https:\/\/www.appliancepartspros.com\/b\/wp-content\/uploads\/2025\/04\/Updated-blog-rectangle-113.jpg' attachment='16298' 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-1cwl9fx' 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-m9lgbdo1' admin_preview_bg='']\r\nWhen it comes to your trusty refrigerator or freezer, we all want to make sure that its compressor stays in tip-top shape, right? Sometimes, though, the compressor needs a little extra kick to get things going smoothly.\u00a0<\/span>\r\n\r\nWe'll cover the benefits and things to consider when using a hard start kit. Plus, we'll walk you through the installation process. We've got your back, and we're here to help you save money on costly repairs while keeping your refrigerator or freezer running smoothly. Let's dive in and get that compressor running!<\/span>\r\n\r\nYou can find a <\/span>replacement hard start kit for compressors sizes 1\/4 through 1\/3 HP here<\/b><\/a>. If you need other replacement parts for your <\/span>refrigerator<\/b><\/a>, just enter your model number at <\/span>AppliancePartsPros.com<\/b><\/a> to find them. It\u2019s that easy! Most orders arrive in just two business days, and we have thousands of guides to show you how to install your new parts.<\/span>\r\n\r\nThe information in this article may not apply to your specific appliance model. We recommend consulting your manufacturer's documentation or<\/span> contact us<\/b><\/a> with any questions.<\/span><\/em>\r\n\r\n[lwptoc numeration=\"none\"]\r\n

Full safety notes below<\/a><\/p>\n\n

What is a refrigerator hard start kit?<\/span><\/h2>\r\nA hard start is a universal device compatible with most models that aids the compressor in starting up your refrigerator. It typically consists of three or four components in one, depending on the part:<\/span>\r\n\r\nStart capacitor<\/b>: This provides an extra boost of electricity to the compressor during startup, overcoming its initial inertia and getting it running smoothly.<\/span>\r\n\r\nRelay<\/b>: This acts as a switch, activating the start capacitor only during the initial startup phase and then disconnecting it once the compressor reaches operating speed.<\/span>\r\n\r\nOverload protector<\/b>: This safeguards the compressor against overheating by cutting off power if it detects excessive current draw.<\/span>\r\n\r\nRun capacitor:<\/b> On some models this provides an extra power boost to the compressor motor during startup, improving energy efficiency and prolonging the compressor motor's lifespan.<\/span>\r\n

Why your refrigerator might need a hard start kit<\/span><\/h2>\r\nUsing a refrigerator hard start kit, which is designed to give the compressor an extra boost during startup, should be approached with caution for several reasons. Primarily, it may lead to more significant problems down the line. These kits can increase the wear and tear on the compressor by subjecting it to higher starting currents, potentially shortening its lifespan.\u00a0<\/span>\r\n\r\nHard start kits are often used as a temporary fix rather than addressing the root cause of starting problems, such as electrical supply issues, a bad compressor accessory part or a failing compressor. Additionally, if not selected or installed correctly, they can cause compatibility issues, leading to operational inefficiencies or even damage to the refrigerator\u2019s electrical system.\u00a0<\/span>\r\n\r\nTherefore, it's best to replace any bad compressor parts with an OEM replacement and use a universal hard start kit as a temporary solution to keep the refrigerator running until parts can be replaced.\u00a0<\/span>\r\n

Can a hard start be used on a failed compressor?<\/span><\/h2>\r\nUsing a hard start kit on a failed compressor is generally not recommended and often ineffective. A hard start kit is designed to help compressors that struggle to start due to weak capacitors or slight overloads by providing an extra surge of power. However, if a compressor has failed\u2014meaning it's mechanically seized, electrically open, or has suffered other critical failures\u2014no amount of extra starting power will revive it. In such cases, the underlying issues causing the compressor to fail will need to be addressed, which typically involves repairing or replacing the compressor. Attempting to use a hard start kit on a failed compressor can result in further damage to the refrigerator's electrical system, increased energy consumption, and potential safety hazards.\u00a0<\/span>\r\n

Tools<\/span><\/h2>\r\n