{"id":10042,"date":"2026-08-21T18:13:47","date_gmt":"2026-08-21T22:13:47","guid":{"rendered":"https:\/\/cetechsupport.com\/?p=10042"},"modified":"2026-08-21T18:13:47","modified_gmt":"2026-08-21T22:13:47","slug":"code-51-43-oat-not-valid-27vpa-only","status":"publish","type":"post","link":"https:\/\/cetechsupport.com\/es\/code-51-43-oat-not-valid-27vpa-only\/","title":{"rendered":"Code 51-43 OAT Not Valid (27VPA Only)"},"content":{"rendered":"<div class=\"wp-block-group fault-code-summary is-layout-flow wp-block-group-is-layout-flow\"><div class=\"wp-block-group__inner-container\">\n\n<h2 class=\"wp-block-heading\">C\u00f3digos de falla cubiertos<\/h2>\n\n\n<p class=\"wp-block-paragraph\"><strong>51-43<\/strong><\/p>\n\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">The outdoor air thermistor determines operating range of compressor and fan speeds in cooling and heating operating modes in conjunction with the OCT sensor. So if the OAT sensor is open or shorted AND the OCT thermistor is also open or shorted, the system cannot safely run and will shut down. Once the OAT and OCT thermistors are fixed the system will operate normally.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<p class=\"has-small-font-size wp-block-paragraph\"><em>P\u00e1ginas de soluci\u00f3n de problemas de ACHPVSR454-02SM.<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Troubleshooting guidance for fault code(s) 51-43.<\/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":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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51-43.","_links":{"self":[{"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/posts\/10042","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/comments?post=10042"}],"version-history":[{"count":1,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/posts\/10042\/revisions"}],"predecessor-version":[{"id":930414,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/posts\/10042\/revisions\/930414"}],"wp:attachment":[{"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/media?parent=10042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/categories?post=10042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/tags?post=10042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}