{"id":10070,"date":"2026-08-21T18:13:15","date_gmt":"2026-08-21T22:13:15","guid":{"rendered":"https:\/\/cetechsupport.com\/?p=10070"},"modified":"2026-08-21T18:13:15","modified_gmt":"2026-08-21T22:13:15","slug":"code-81-14-vfd-system-fault-unbalanced-pfcm-code-81-54-vfd-system-lockout-unbalance-pfcm","status":"publish","type":"post","link":"https:\/\/cetechsupport.com\/es\/code-81-14-vfd-system-fault-unbalanced-pfcm-code-81-54-vfd-system-lockout-unbalance-pfcm\/","title":{"rendered":"Code 81-14 VFD System Fault &#8211; Unbalanced PFCM Code 81-54 VFD System Lockout &#8211; Unbalance PFCM"},"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\">Fault codes covered<\/h2>\n\n\n<p class=\"wp-block-paragraph\"><strong>81-14, 81-54<\/strong><\/p>\n\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Applicable to 4 and 5 ton models only with multiple reactors. This fault occurs when current in PFCM circuits is not balanced. It is most likely caused by a disconnected or faulty reactor. The VFD will shut down and attempt to restart after each occurrence of code 81-14. After 2 occurrences within 10 minutes, code 81-54 is set and system is locked out for 4 hours.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Disconnect and measure resistance of both reactors in system. As reactor charges the resistance will be reduced to 0. If measurement is open, replace reactor. Otherwise replace VFD.<\/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>Source: ACHPVSR454-02SM troubleshooting pages.<\/em><\/p>","protected":false},"excerpt":{"rendered":"<p>Troubleshooting guidance for fault code(s) 81-14, 81-54.<\/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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81-54.","_links":{"self":[{"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/posts\/10070","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=10070"}],"version-history":[{"count":1,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/posts\/10070\/revisions"}],"predecessor-version":[{"id":930386,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/posts\/10070\/revisions\/930386"}],"wp:attachment":[{"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/media?parent=10070"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/categories?post=10070"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cetechsupport.com\/es\/wp-json\/wp\/v2\/tags?post=10070"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}