{"id":230,"date":"2013-04-10T12:00:22","date_gmt":"2013-04-10T02:00:22","guid":{"rendered":"http:\/\/www.paullsair.com.au\/home\/?p=230"},"modified":"2013-04-24T10:17:09","modified_gmt":"2013-04-24T00:17:09","slug":"possible-locations-of-component-failure-in-the-standard-air-conditioning-system","status":"publish","type":"post","link":"http:\/\/www.paullsair.com.au\/home\/paullsair-air-conditioning-blog\/possible-locations-of-component-failure-in-the-standard-air-conditioning-system","title":{"rendered":"The Truth about Air Conditioning failure"},"content":{"rendered":"<p style=\"text-align: left;\" align=\"center\">Every now and then, air conditioners stop functioning. This may be due to a failure of a single component that is a crucial part of the whole system.<\/p>\n<p>Some of our clients in Sydney have requested that I post brief notes on various reasons for air conditioning failure. In this blog I will describe the different parts of air conditioners that can cease to work and possibly sabotage the functionality of the entire system. When you read this article, think of it as a brief list of items that could possibly fail in direct expansion air conditioning system, by no means is it an exhaustive list, it is based on a ducted, direct expansion refrigerant system and one that does not take into consideration different types of units such as water cooled either by chiller or by cooling tower, and etc. Let&#8217;s see how a direct expansion air conditioning system works:<\/p>\n<p style=\"padding-left: 30px;\">\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0<strong> \u00a0<\/strong><span style=\"text-decoration: underline;\"><strong>Cooling<\/strong><\/span><strong> <\/strong><span style=\"color: #888888;\"><strong>\u00a0\u00a0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0\u00a0<\/strong><\/span><strong>\u00a0<\/strong><strong>\u00a0<\/strong><span style=\"text-decoration: underline;\"><strong>Heating<\/strong><\/span><\/p>\n<p style=\"text-align: center;\">Click on th<a title=\"Heating and cooling air conditioning systems\" href=\"http:\/\/www.paullsair.com.au\/wp-content\/uploads\/2013\/04\/1.gif\" target=\"_blank\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-260 alignleft\" title=\"Heating and cooling air conditioning systems\" src=\"http:\/\/www.paullsair.com.au\/wp-content\/uploads\/2013\/04\/1.gif\" alt=\"air conditioning system heating cooling\" width=\"1024\" height=\"311\" srcset=\"https:\/\/www.paullsair.com.au\/wp-content\/uploads\/2013\/04\/1.gif 1024w, https:\/\/www.paullsair.com.au\/wp-content\/uploads\/2013\/04\/1-300x91.gif 300w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a>e picture to expand.<\/p>\n<p style=\"text-align: center;\">Let\u2019s begin our little excursion on the<\/p>\n<p style=\"text-align: center;\"><strong><span style=\"text-decoration: underline;\">Indoor evaporator air conditioning un<\/span><span style=\"text-decoration: underline;\">it:<\/span><\/strong><\/p>\n<p>\u00a0 <span style=\"text-decoration: underline;\">Indoor unit\/evaporator<\/span> consists of:<img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-351\" title=\"Evaporator air conditioning\" src=\"http:\/\/www.paullsair.com.au\/wp-content\/uploads\/2013\/04\/Evaporator-1-t-300x246.jpg\" alt=\"air conditioning evaporator unit\" width=\"300\" height=\"246\" srcset=\"https:\/\/www.paullsair.com.au\/wp-content\/uploads\/2013\/04\/Evaporator-1-t-300x246.jpg 300w, https:\/\/www.paullsair.com.au\/wp-content\/uploads\/2013\/04\/Evaporator-1-t.jpg 558w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>1. Fan motor, which in turn includes:<\/p>\n<ul>\n<li>Bearing;<\/li>\n<li>Blade;<\/li>\n<li>Electrical overload\/thermal;<\/li>\n<li>Motor.<\/li>\n<\/ul>\n<p>2. Capacitor; 3. Contact; 4. Circuit breaker; 5. The expansion of valves includes:<\/p>\n<ul>\n<li>TX;<\/li>\n<li>Piston.<\/li>\n<\/ul>\n<p>6. Controller; 7. Relative humidity sensor; 8. Temperature sensor.<\/p>\n<p style=\"text-align: center;\">Let us carry on to the <strong><\/strong><\/p>\n<p style=\"text-align: center;\"><strong><span style=\"text-decoration: underline;\">Outdoor condenser air con<\/span><span style=\"text-decoration: underline;\">ditioning unit:<\/span><\/strong><\/p>\n<p>So, what does <span style=\"text-decoration: underline;\">outdoor unit\/condenser<\/span> have inside? 9. Fan motor, consisting of:<img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-349\" title=\"Air_Conditioners_condenser_Color\" src=\"http:\/\/www.paullsair.com.au\/wp-content\/uploads\/2013\/04\/A_Allegiance_20_Air_Conditioners_Cutaway_Color1.51122749_std-234x300.jpg\" alt=\"air conditioning condenser explanation\" width=\"234\" height=\"300\" srcset=\"https:\/\/www.paullsair.com.au\/wp-content\/uploads\/2013\/04\/A_Allegiance_20_Air_Conditioners_Cutaway_Color1.51122749_std-234x300.jpg 234w, https:\/\/www.paullsair.com.au\/wp-content\/uploads\/2013\/04\/A_Allegiance_20_Air_Conditioners_Cutaway_Color1.51122749_std.jpg 800w\" sizes=\"(max-width: 234px) 100vw, 234px\" \/><\/p>\n<ul>\n<li>Bearing;<\/li>\n<li>Blade;<\/li>\n<li>Electrical overload\/thermal;<\/li>\n<li>Motor.<\/li>\n<\/ul>\n<p>10. Controller; 11. Overload; 12. Circuit breaker time delay; 13. Defrost board; 14. Compressor contact; 15. Compressor overload; 16. Compressor circuit breaker; 17. Compressor capacitor; 18. Low pressure protection device; 19. High pressure protection device; 20. Reversing valve coil. \u00a0 <strong>Refrigerant system<\/strong>21. Refrigerant leak<\/p>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\" width=\"45\"><\/td>\n<td valign=\"top\" width=\"170\"><\/td>\n<td style=\"text-align: center;\" valign=\"top\" width=\"178\"><strong>Indoor unit\/evaporator<\/strong><\/td>\n<td valign=\"top\" width=\"222\">\n<p style=\"text-align: center;\"><strong>Outgoing unit\/Condenser<\/strong><\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"45\"><strong>1<\/strong><\/td>\n<td valign=\"top\" width=\"170\"><strong>Refrigerant coil<\/strong><\/td>\n<td style=\"text-align: center; background-color: #4c7daa;\" valign=\"top\" width=\"178\"><strong>\u2713<\/strong><\/td>\n<td style=\"text-align: center; background-color: #4c7daa;\" valign=\"top\" width=\"178\"><strong>\u2713<\/strong><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"45\"><strong>2<\/strong><\/td>\n<td valign=\"top\" width=\"170\"><strong>Flared connection<\/strong><\/td>\n<td style=\"text-align: center; background-color: #4c7daa;\" valign=\"top\" width=\"178\"><strong>\u2713<\/strong><\/td>\n<td style=\"text-align: center; background-color: #4c7daa;\" valign=\"top\" width=\"178\"><strong>\u2713<\/strong><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"45\"><strong>3<\/strong><\/td>\n<td valign=\"top\" width=\"170\"><strong>Reversing valve<\/strong><\/td>\n<td style=\"text-align: center; background-color: #4c7daa;\" valign=\"top\" width=\"178\"><\/td>\n<td style=\"text-align: center; background-color: #4c7daa;\" valign=\"top\" width=\"178\"><strong>\u2713<\/strong><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"45\"><strong>4<\/strong><\/td>\n<td valign=\"top\" width=\"170\"><strong>Service ports suction<\/strong><\/td>\n<td style=\"text-align: center; background-color: #4c7daa;\" valign=\"top\" width=\"178\"><\/td>\n<td style=\"text-align: center; background-color: #4c7daa;\" valign=\"top\" width=\"178\"><strong>\u2713<\/strong><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"45\"><strong>5<\/strong><\/td>\n<td valign=\"top\" width=\"170\"><strong>Discharge<\/strong><\/td>\n<td style=\"text-align: center; background-color: #4c7daa;\" valign=\"top\" width=\"178\"><\/td>\n<td style=\"text-align: center; background-color: #4c7daa;\" valign=\"top\" width=\"178\"><strong>\u2713<\/strong><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"45\"><strong>6<\/strong><\/td>\n<td valign=\"top\" width=\"170\"><strong>Expansion valve<\/strong><\/td>\n<td style=\"text-align: center; background-color: #4c7daa;\" valign=\"top\" width=\"178\"><strong>\u2713<\/strong><\/td>\n<td style=\"text-align: center; background-color: #4c7daa;\" valign=\"top\" width=\"178\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Possible locations of air blockages<\/strong>22. return air filter 23. evaporator coils 24. condenser coil 25. supplier return air flexible ductwork crushed or dislodged 26. balancing equipment on supply air<\/p>\n<div id=\"repair\">_________________________________________________________<\/div>\n<p><strong>To repair or replace, \u201cthat is the question?<\/strong> <strong><\/strong>To put it simply, there is no correct answer. Below are a number of considerations to take into account before making a decision:<\/p>\n<ul>\n<li>How old is the system and is it still under warranty?<\/li>\n<li>What is wrong with the system?<\/li>\n<li>Have you got fusion insurance?<\/li>\n<li>Has one or more items failed previously?<\/li>\n<li>Has the failed item damaged other components (electrical damage may not be visible or evident at the time of a repair)?<\/li>\n<li>If multiple items have failed, replacing one item may only identify another item that has failed and also requires replacement before the system will run. (This is called a cascade failure)<\/li>\n<li>A cascade failure may have occurred at a single time, or may occur over a period of time as items damaged by the original failure, cease operating. (Intermittant fault)<\/li>\n<li>Was there a storm recently?<\/li>\n<li>Are you located in a poor power supply area?<\/li>\n<\/ul>\n<div id=\"life\">__________________________________________________________<\/div>\n<p><strong>Air conditioning \u201ceffective\u201d life expectancy<\/strong> Industry bodies have identified the \u201ceffective\u201d life expectancy, of any unit: <strong>Economic life of equipment<\/strong><\/p>\n<table border=\"1\" cellspacing=\"0\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td valign=\"top\" width=\"461\"><strong>Equipment<\/strong><\/td>\n<td colspan=\"2\" valign=\"top\" width=\"155\"><strong>Economic life (years)<\/strong><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Air conditioning unit \u2013 Package (10 kW \u2013 100 kW)<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">10 to 15<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Air conditioning unit \u2013 Room type<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">7 to 10<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Air conditioning unit \u2013 Split units (up to 10 kW)<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">7 to 10<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Air conditioning unit \u2013 Split package (10 kW \u2013 100 kW)<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">10 to 15<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Air filters \u2013 Dry media disposable<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">6 to 18 months<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Air filters \u2013 HEPA<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">1 to 5<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Air filters \u2013 Kitchen hood grease filters (monthly clean)<\/td>\n<td colspan=\"2\" valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">3 to 6<\/p>\n<\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Air handling unit \u2013 Custom built central station<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 30<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Air handling unit \u2013 Proprietary line central station single or multiple zone<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Automatic controls and instrumentation<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Boilers \u2013 Cast iron<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">25 to 30<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Boilers \u2013 Finned copper tube heat exchanger<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Boilers \u2013 Fire tube<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">15 to 20<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Boilers \u2013 Water tube<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 30<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Boilers electrode<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">15 to 20<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Coils to Cooling and heating<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Cooling towers<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">10 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Ductwork and fittings<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 30<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Electric motors<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Electric storage heaters<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Electric strip heaters<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">8 to 12<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Electrical final circuits and outlets<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Electrical mains cables<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">25 to 30<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Electrical switchgear and distribution equipment<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">25 to 30<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Fans<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">15 to 20<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Fire alarm systems<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Gas convection heater<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">15 to 20<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Generators \u2013 Diesel<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">15 to 20<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Generators \u2013 Electric<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">15 to 20<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Heat exchangers<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Kitchen equipment<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">15 to 20<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Laundry equipment<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">15 to 20<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Lighting equipment<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Pipe work and valves<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Pumps<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Radiators \u2013 Hot water<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Refrigeration chillers \u2013 Absorption<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Refrigeration chillers \u2013 Centrifugal<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Refrigeration chillers \u2013 (Reciprocating, screw)<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">15 to25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Tanks<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">20 to 30<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<tr>\n<td valign=\"top\" width=\"461\">Variable air volume \u2013 Terminal units<\/td>\n<td valign=\"top\" width=\"155\">\n<p style=\"text-align: center;\">15 to 25<\/p>\n<\/td>\n<td width=\"1\"><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Table above taken from <a title=\"AIRAH\" href=\"http:\/\/www.airah.org.au\/iMIS15_Prod\/AIRAH\/\" target=\"_blank\">AIRAH<\/a>. \u00a0 Within this timeframe is calculated that replacing of component is more economical than replacement of the unit. Beyond this timeframe it is calculated the replacement of the unit is more economical and replacement of the component. The \u201ceffective life expectancy of a unit\u201d takes into consideration:<\/p>\n<ul>\n<li>Warranty;<\/li>\n<li>Component lifetime expectancy;<\/li>\n<li>Possible tax write-offs of capital;<\/li>\n<li>Cascade failure of components etc.<\/li>\n<\/ul>\n<p>A failure of any one of the above 32 items will render the system inoperable. The job of a <span style=\"text-decoration: underline;\">good service technician<\/span> is to identify which of these components has failed, and then possibly replace it. The job of <span style=\"text-decoration: underline;\">preventative maintenance<\/span> is to extend the life of the 26 items and identify items that require replacement prior to their failure, to minimise downtime or loss of effectiveness. Most of the mechanical failures of the items above can be a lot cheaper than the replacement of the existing air conditioning system.<\/p>\n<p>&nbsp;<\/p>\n<p><script type=\"text\/javascript\" src=\"http:\/\/forms.aweber.com\/form\/93\/1417304993.js\"><\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Every now and then, air conditioners stop functioning. This may be due to a failure of a single component that is a crucial part of the whole system. Some of our clients in Sydney have requested that I post brief notes on various reasons for air conditioning failure. In this blog I will describe the [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"http:\/\/www.paullsair.com.au\/home\/wp-json\/wp\/v2\/posts\/230"}],"collection":[{"href":"http:\/\/www.paullsair.com.au\/home\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.paullsair.com.au\/home\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.paullsair.com.au\/home\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/www.paullsair.com.au\/home\/wp-json\/wp\/v2\/comments?post=230"}],"version-history":[{"count":141,"href":"http:\/\/www.paullsair.com.au\/home\/wp-json\/wp\/v2\/posts\/230\/revisions"}],"predecessor-version":[{"id":388,"href":"http:\/\/www.paullsair.com.au\/home\/wp-json\/wp\/v2\/posts\/230\/revisions\/388"}],"wp:attachment":[{"href":"http:\/\/www.paullsair.com.au\/home\/wp-json\/wp\/v2\/media?parent=230"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.paullsair.com.au\/home\/wp-json\/wp\/v2\/categories?post=230"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.paullsair.com.au\/home\/wp-json\/wp\/v2\/tags?post=230"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}