Terrible experience with carrier air conditioner warranty services. Company is using third party services for maintenance (Aarkey Eng in Guragaon). Technician visited the place, identified the fault and identified that PCB is faulty and told us an estimated bill of Rs.900/-. When we told him AC is under warranty he said replacement will take 3-4 days due to company procedure. I escalated it back to company call center then they committed repair time as 24 hours, i do got follow up calls from company about repair but what i am still awaiting for is that elusive service engineer who is suppose to repair. So irritating that first they don't stand withs service level and more over they will follow up with you to check if you are happy with the services. This all happen for a regular part like PCb I am afraid if in Delhi summer you get some major fault then looks like Carrier will take full season to wake up. Do think twice to buy Carrier ...:)