All warranties are subject to terms and conditions, all of which you should be aware of before making a purchase. This avoids any unwelcome surprises after purchase, should an issue arise.
Your warranty, whether parts only or parts and labour will only cover problems arising through manufacturer fault and will not cover factors out of the control of the manufacturer or distributor e.g. incorrect installation, misuse, lack of maintenance or natural wear and tear etc.
It is the responsibility of the customer to ensure that recommended cleaning, maintenance and service is carried out regularly. Equipment must only be used for what it was designed for with the suitable air flow around the exterior and interior of the appliance. Correct installation must have been carried out by a qualified engineer and any recommended additional equipment should be used e.g. a water filter.