{"id":4443,"date":"2025-08-05T15:30:38","date_gmt":"2025-08-05T08:30:38","guid":{"rendered":"https:\/\/onggiosaoviet.vn\/?p=4443"},"modified":"2025-08-05T15:30:38","modified_gmt":"2025-08-05T08:30:38","slug":"cac-dau-hieu-loi-dieu-hoa-trung-tam","status":"publish","type":"post","link":"https:\/\/onggiosaoviet.vn\/en\/cac-dau-hieu-loi-dieu-hoa-trung-tam\/","title":{"rendered":"Signs of central air conditioning failure"},"content":{"rendered":"<p><strong>Common Basic Errors When Using Central Air Conditioners<\/strong><\/p>\n<p>We all expect our central air conditioning systems to work properly, providing good, consistent cooling. Most of us use our systems just fine until something goes wrong. 4 signs your central air conditioning system has a problem:\u00a0<em>no electricity, no air conditioning, some rooms are cold and there is noise from the system<\/em>. If you experience any of these problems, it is important to recognize the signs that will help you know if you need help from professional air conditioning repair services.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/dieuhoasaoviet.vn\/upload\/images\/65fbb73bac5e4c00154f.jpg\" alt=\"\" \/><\/p>\n<h3><a href=\"http:\/\/dieuhoasaoviet.vn\/dieu-hoa-trung-tam-129.html\">Central air conditioning installation in Hai Phong<\/a><\/h3>\n<h2><a href=\"http:\/\/dieuhoasaoviet.vn\/dieu-hoa-trung-tam-129.html\"><strong>1. No electricity<\/strong><\/a><\/h2>\n<p>If\u00a0<strong>central air conditioning<\/strong>\u00a0The unit is on but there seems to be no power to it, this could be due to a few factors.<\/p>\n<ul>\n<li>If you do not hear the system running and there is no air coming from the vent, this may be due to a blown fuse or tripped circuit breaker. Check the fuse box and reset the circuit breaker or replace the fuse.<\/li>\n<li>No power can also be due to a faulty thermal relay that prevents the air conditioner from turning on. If you change the thermal relay setting to the lowest temperature and the machine still does not turn on, that is a bad sign. Call the Service Department immediately.\u00a0<strong>Sao Viet air conditioner maintenance and repair<\/strong>t to have the thermal relay repaired or replaced.<\/li>\n<li>No power can also be due to broken wires or poor signal wire connections. Sao Viet Air Conditioning Company&#039;s professional technicians can connect broken wires together or fix signal connections.<\/li>\n<\/ul>\n<h3><strong>2. Not cold<\/strong>.<\/h3>\n<p>When the air conditioner is running and blowing wind but the air is not cold, this is usually due to a lack of refrigerant or a faulty condenser. In case you need to check the system, call\u00a0<strong>Service room<u>\u00a0<\/u>Sao Viet professional air conditioner maintenance and repair<\/strong>.<\/p>\n<ul>\n<li>The job of the indoor unit is to circulate cold air by taking cold air through it and then blowing it into your room.<\/li>\n<li>If the system is lacking refrigerant (gas R22, R410), it needs to be replenished and the gas leak treated.<\/li>\n<\/ul>\n<h3><strong>3. Some rooms are not cold<\/strong>.<\/h3>\n<p>If only one room is cold and the others are not, it is most likely a duct fault.<\/p>\n<ul>\n<li><strong>Central air conditioning<\/strong>\u00a0It is considered a closed air system, however if the return air duct or fresh air duct is cracked or leaking, the cooling efficiency of the room will be reduced.<\/li>\n<\/ul>\n<h3><strong>4. Noise<\/strong>.<\/h3>\n<p>When the central air conditioning system makes too much noise, it is best to turn it off to avoid causing more danger. Generally, the cause of noise is mostly due to the fan motor.<\/p>\n<p>In short as said at the beginning when the central air conditioner is not working, you should call\u00a0<a href=\"http:\/\/dieuhoasaoviet.vn\/\"><strong>Sao Viet Air Conditioner<\/strong><\/a>\u00a0To use professional service, we will help you check and handle all errors.<\/p>\n<p>&nbsp;<\/p>\n<p align=\"center\">\u00a0<a href=\"http:\/\/dieuhoasaoviet.vn\/du-an-186.html\"><img decoding=\"async\" src=\"https:\/\/dieuhoasaoviet.vn\/upload\/images\/du-an-ong-gio.png\" alt=\"d\u1ef1 \u00e1n \u1ed1ng gi\u00f3\" \/><\/a><\/p>\n<p align=\"center\">\n<p>&nbsp;<\/p>\n<p align=\"center\"><img decoding=\"async\" src=\"https:\/\/dieuhoasaoviet.vn\/upload\/images\/hotline-dieu-hoa-sao-viet.png\" alt=\"hotline \u0111i\u1ec1u h\u00f2a sao vi\u1ec7t\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>C\u00e1c L\u1ed7i C\u01a1 B\u1ea3n Th\u01b0\u1eddng G\u1eb7p Khi S\u1eed D\u1ee5ng C\u1ee7a \u0110i\u1ec1u H\u00f2a Trung T\u00e2m Ch\u00fang ta \u0111\u1ec1u lu\u00f4n mong ch\u1edd t\u1ea5t c\u1ea3 c\u00e1c \u0111i\u1ec1u h\u00f2a trung t\u00e2m ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh, cung c\u1ea5p kh\u00ed l\u1ea1nh t\u1ed1t, h\u1ee3p l\u00fd. H\u1ea7u h\u1ebft ch\u00fang ta \u0111\u1ec1u s\u1eed d\u1ee5ng h\u1ec7 th\u1ed1ng b\u00ecnh th\u01b0\u1eddng cho \u0111\u1ebfn khi xu\u1ea5t hi\u1ec7n hi\u1ec7n [&hellip;]<\/p>","protected":false},"author":1,"featured_media":4457,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4443","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tin-tuc"],"_links":{"self":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/4443","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/comments?post=4443"}],"version-history":[{"count":1,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/4443\/revisions"}],"predecessor-version":[{"id":4458,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/posts\/4443\/revisions\/4458"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media\/4457"}],"wp:attachment":[{"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/media?parent=4443"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/categories?post=4443"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onggiosaoviet.vn\/en\/wp-json\/wp\/v2\/tags?post=4443"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}