{"id":930887,"date":"2026-08-25T16:42:04","date_gmt":"2026-08-25T20:42:04","guid":{"rendered":"https:\/\/cetechsupport.com\/?p=930887"},"modified":"2026-09-22T13:39:02","modified_gmt":"2026-09-22T17:39:02","slug":"37mgra-ph-90","status":"publish","type":"post","link":"https:\/\/cetechsupport.com\/es\/37mgra-ph-90\/","title":{"rendered":"37MGRA PH 90 (High temperature protection of evaporator diagnosis and solution)"},"content":{"rendered":"<div class=\"diagnostic-code-summary\">\n<h2>C\u00f3digos de diagn\u00f3stico cubiertos<\/h2>\n<p><strong>PH 90<\/strong><\/p>\n<p>Description: When evaporator coil temperature is more than 60\u00b0C in heating mode, the unit stops. It starts again only when the evaporator coil temperature is less than 52\u00b0C. Recommended parts to prepare: Connection wires, Evaporator coil temperature sensor (T2), Indoor fan, Indoor main PCB<\/p>\n<\/div>\n<h2>Flujo de soluci\u00f3n de problemas<\/h2>\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-ph-90-1.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1946\" height=\"2485\" class=\"wp-image-931018\" src=\"https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-ph-90-1.png\" alt=\"PH 90 (High temperature protection of evaporator diagnosis and solution) workflow\" srcset=\"https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-ph-90-1.png 1946w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-ph-90-1-235x300.png 235w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-ph-90-1-802x1024.png 802w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-ph-90-1-768x981.png 768w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-ph-90-1-1203x1536.png 1203w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-ph-90-1-1604x2048.png 1604w, https:\/\/cetechsupport.com\/wp-content\/uploads\/2026\/08\/37mgra-v5-37mgra-ph-90-1-9x12.png 9w\" sizes=\"auto, (max-width: 1946px) 100vw, 1946px\" \/><\/a><figcaption>PH90 (High temperature protection of evaporator diagnosis and solution) workflow<\/figcaption><\/figure>\n<h2>Pruebas de diagn\u00f3stico relacionadas<\/h2>\n<ul>\n<li><a href=\"https:\/\/cetechsupport.com\/es\/?p=930848\">Verificaci\u00f3n del sensor de temperatura 37MGRA<\/a><\/li>\n<\/ul>\n<p><small><em>Fuente del flujo de trabajo: manual de servicio original 37MGRA-02SM PDF. Nombres de c\u00f3digos de error contrastados con 37MGRA-04SI.<\/em><\/small><\/p>","protected":false},"excerpt":{"rendered":"<p>Troubleshooting workflow for PH 90.<\/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":[243,304],"class_list":["post-930887","post","type-post","status-publish","format-standard","hentry","category-37mgra-diagnostic-codes","tag-37mgra","tag-ph-90"],"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\/es\/author\/joshg\/"},"uagb_comment_info":0,"uagb_excerpt":"Troubleshooting workflow for PH 90.","_links":{"self":[{"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/posts\/930887","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=930887"}],"version-history":[{"count":4,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/posts\/930887\/revisions"}],"predecessor-version":[{"id":931893,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/posts\/930887\/revisions\/931893"}],"wp:attachment":[{"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/media?parent=930887"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/categories?post=930887"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/tags?post=930887"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}