{"id":930867,"date":"2026-08-25T16:42:17","date_gmt":"2026-08-25T20:42:17","guid":{"rendered":"https:\/\/cetechsupport.com\/?p=930867"},"modified":"2026-09-22T13:44:56","modified_gmt":"2026-09-22T17:44:56","slug":"37mgra-pc-03-pc-30-pc-31","status":"publish","type":"post","link":"https:\/\/cetechsupport.com\/fr\/37mgra-pc-03-pc-30-pc-31\/","title":{"rendered":"37MGRA PC 03 Protection contre la pression (basse ou haute pression), PC 30 Protection contre la haute pression, PC 31 Protection contre la basse pression (Diagnostic et solution)"},"content":{"rendered":"<div class=\"diagnostic-code-summary\">\n<h2>Codes de diagnostic couverts<\/h2>\n<p><strong>PC 03(PC03), PC 30(PC30), PC 31(PC31)<\/strong><\/p>\n<ul>\n<li>PC 03 \u2013 Protection contre la basse ou haute pression<\/li>\n<\/ul>\n<p>Description: Outdoor pressure switch cut off the system because high pressure is higher than 638 psi or outdoor pressure switch cut off the system because low pressure is lower than 19 psi, the LED displays the failure code. Recommended parts to prepare: Connection wires, Pressure switch, Outdoor fan, Outdoor main PCB, Refrigerant Troubleshooting and repair: <\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\">Flux de travail de d\u00e9pannage<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-1.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1946\" height=\"2485\" src=\"https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-1.png\" alt=\"Flux de travail de diagnostic et de solution pour la protection de pression PC 03 (basse ou haute pression), la protection haute pression PC 30 et la protection basse pression PC 31\" class=\"wp-image-930997\" srcset=\"https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-1.png 1946w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-1-235x300.png 235w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-1-802x1024.png 802w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-1-768x981.png 768w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-1-1203x1536.png 1203w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-1-1604x2048.png 1604w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-1-9x12.png 9w\" sizes=\"auto, (max-width: 1946px) 100vw, 1946px\" \/><\/a><figcaption class=\"wp-element-caption\">Flux de travail de diagnostic et de solution pour la protection de pression PC 03 (basse ou haute pression), la protection haute pression PC 30 et la protection basse pression PC 31<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-2.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1946\" height=\"2485\" src=\"https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-2.png\" alt=\"Flux de travail de diagnostic et de solution pour la protection de pression PC 03 (basse ou haute pression), la protection haute pression PC 30 et la protection basse pression PC 31\" class=\"wp-image-930998\" srcset=\"https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-2.png 1946w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-2-235x300.png 235w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-2-802x1024.png 802w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-2-768x981.png 768w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-2-1203x1536.png 1203w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-2-1604x2048.png 1604w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-pc-03-pc-30-pc-31-2-9x12.png 9w\" sizes=\"auto, (max-width: 1946px) 100vw, 1946px\" \/><\/a><figcaption class=\"wp-element-caption\">Flux de travail de diagnostic et de solution pour la protection de pression PC 03 (basse ou haute pression), la protection haute pression PC 30 et la protection basse pression PC 31<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><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 PC 03, PC 30, PC 31.<\/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":[243,272,273,274],"class_list":["post-930867","post","type-post","status-publish","format-standard","hentry","category-37mgra-diagnostic-codes","tag-37mgra","tag-pc-03","tag-pc-30","tag-pc-31"],"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 PC 03, PC 30, PC 31.","_links":{"self":[{"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/posts\/930867","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=930867"}],"version-history":[{"count":5,"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/posts\/930867\/revisions"}],"predecessor-version":[{"id":931906,"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/posts\/930867\/revisions\/931906"}],"wp:attachment":[{"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/media?parent=930867"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/categories?post=930867"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cetechsupport.com\/fr\/wp-json\/wp\/v2\/tags?post=930867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}