{"id":930882,"date":"2026-08-25T16:42:03","date_gmt":"2026-08-25T20:42:03","guid":{"rendered":"https:\/\/cetechsupport.com\/?p=930882"},"modified":"2026-09-22T13:40:28","modified_gmt":"2026-09-22T17:40:28","slug":"37mgra-eh-c1-eh-c2","status":"publish","type":"post","link":"https:\/\/cetechsupport.com\/fr\/37mgra-eh-c1-eh-c2\/","title":{"rendered":"37MGRA EH C1 (Refrigerant Sensor Detects Leakage) or EH C2 (Refrigerant Sensor is Out of Range and Leakage is Detected) Diagnosis and Solution"},"content":{"rendered":"<div class=\"diagnostic-code-summary\">\n<h2>Codes de diagnostic couverts<\/h2>\n<p><strong>EH C1, EH C2<\/strong><\/p>\n<ul>\n<li>EH C1 &#8211; Refrigerant Sensor Detects Leakage<\/li>\n<li>EH C2 &#8211; Refrigerant Sensor Is Out of Range and Leakage Is Detected<\/li>\n<\/ul>\n<p>Description: The refrigerant sensor detects a concentration higher than or equal to 10%*LFL for 10 seconds or the refrigerant sensor detects a concentration higher than or equal to 20%*LFL or the multi model receives the refrigerant leakage protection fault sent by the outdoor unit. Multi-zone: Only the buzzer of the indoor unit that detects refrigerant leakage continues to sound the alarm, the shortest sound is 10 seconds, and the longest sound is 5 minutes (you can press any key such as remote control or wire control, APP and so on to eliminate the alarm), and the other non-refrigerant leakage fault indoor unit only displays &#8220;ECC1&#8221;, but the buzzer does not sound. Recommended parts to prepare: Additional refrigerant Troubleshooting and repair:<\/p>\n<\/div>\n<h2>Flux de travail de d\u00e9pannage<\/h2>\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-eh-c1-eh-c2-1.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1946\" height=\"1522\" class=\"wp-image-931013\" src=\"https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-eh-c1-eh-c2-1.png\" alt=\"EH C1 (Refrigerant Sensor Detects Leakage) or EH C2 (Refrigerant Sensor is Out of Range and Leakage is Detected) Diagnosis and Solution workflow\" srcset=\"https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-eh-c1-eh-c2-1.png 1946w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-eh-c1-eh-c2-1-300x235.png 300w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-eh-c1-eh-c2-1-1024x801.png 1024w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-eh-c1-eh-c2-1-768x601.png 768w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-eh-c1-eh-c2-1-1536x1201.png 1536w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-eh-c1-eh-c2-1-15x12.png 15w\" sizes=\"auto, (max-width: 1946px) 100vw, 1946px\" \/><\/a><figcaption>EHC1 (Refrigerant Sensor Detects Leakage) or EHC2 (Refrigerant Sensor is Out of Range and Leakage is Detected) Diagnosis and Solution workflow<\/figcaption><\/figure>\n<h2>Contr\u00f4les diagnostiques associ\u00e9s<\/h2>\n<ul>\n<li><a href=\"https:\/\/cetechsupport.com\/fr\/?p=930848\">V\u00e9rification du capteur de temp\u00e9rature 37MGRA<\/a><\/li>\n<\/ul>\n<p><small><em>Source du flux de travail : manuel de service d'origine 37MGRA-02SM PDF. Noms des codes d'erreur recoup\u00e9s avec 37MGRA-04SI.<\/em><\/small><\/p>","protected":false},"excerpt":{"rendered":"<p>Troubleshooting workflow for EH C1, EH C2.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[241],"tags":[243,298,299],"class_list":["post-930882","post","type-post","status-publish","format-standard","hentry","category-37mgra-diagnostic-codes","tag-37mgra","tag-eh-c1","tag-eh-c2"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Carrier Enterprise","author_link":"https:\/\/cetechsupport.com\/fr\/author\/joshg\/"},"uagb_comment_info":0,"uagb_excerpt":"Troubleshooting workflow for EH C1, EH C2.","_links":{"self":[{"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/posts\/930882","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/comments?post=930882"}],"version-history":[{"count":4,"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/posts\/930882\/revisions"}],"predecessor-version":[{"id":931898,"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/posts\/930882\/revisions\/931898"}],"wp:attachment":[{"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/media?parent=930882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/categories?post=930882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/tags?post=930882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}