All around the world appliance warranties are full of legalistic fine print with impossible to understand exclusion clauses. They often exclude particular “at risk” components and rarely include labour.
Furthermore, some air conditioning and reverse cycle heating manufacturers do not have the support personnel available when something goes wrong. Technicians are not local, parts are not readily available and it can all lead to huge frustrations.
A reliable manufacturer of quality units will offer a five year parts and labour warranty backed by trained local service agents.