The manufacturer's warranty will cover anything caused by an inherent fault in the design or manufactue of the air conditioner. It will not cover anything caused by lack of maintenance or an external cause. Below is a list of things which are typically not covered under a system warranty:
All manufacturer's offer a warranty on their new air conditioners. These warranties are typically comprehensive warranties covering all parts and labour for a 5 year period from the date of installation of the system.
If you need to use your manufacturer's warranty then the first place to start is with the person who sold you the system - they will be able to put you in touch with the manufacturer or their warranty agent.
In some cases the system installation company will also be a warranty agent for the manufacturer. This is a question worth asking when deciding which company you will use to carry out your system installation - as not all installation companies are warranty agents.
Larger commercial systems have different warranty coverage to domestic systems. Often these systems have parts only warranties and their warranty period is often only 2 years.
Many people choose to install third party controllers with their ducted air conditioners - such as Polyaire's Air Touch 5 controller or Advantage Air's My Air controller. These controllers similar to the system's come with 5 year parts warranties - but they do not always cover labour.
When your air conditioner stops working the typical process that would be encountered is:
At this point the system should be working and 49 times out of 50 that is that.
Unfortunately in some cases the repair of an air conditioner fails some time after it has been carried out. When this occurs the best course of action is to call the company who has carried out the repairs and they will determine whether the cause of the new faults is:
If it is a new fault then that would not be covered under a repair warranty.
Almost all part manufacturer's - whether they are original equipment manufacturers (OEM) or a third party equipment supplier - provide a 12 month parts only warranty on any parts they supply.
This means should your repaired air conditioner stop working within 12 months of a defective part being installed the manufacturer will supply a replacement part at no cost. However, the manufacturer will not normally cover under their warranty the labour to diagnose the faulty part nor the labour to install the replacement part covered under warranty.
Most service and repair companies offer a 12 month warranty on any work they have carried out. This means if a fault occurs as a result of the work carried out by your service provider - then the service provider will return and rectify the work under their warranty.
Occasionally a new fault may emerge in the air conditioning system which is unrelated to the initial repair and which does not give rise to a warranty claim.
In this case neither the manufacturer nor the installer will be accountable for an air conditioner warranty claim.
If your air conditioner has been repaired and your air conditioner fails within the 12 month warranty period then your best option is to contact the warranty repairer - and they can then return and determine whether or not it is a problem with the original repair - in which case it will be covered under warranty.
If it is a new issue - it will not be covered under warranty - and normally the service provider would expect you to pay for the call out and the diagnosis.