Sunflame Enterprises — wrong commitment about warranty

Dear team,
I purchased your many products but one of them started giving me trouble i. E sunflame chimney model number iris 60 bk bf purchased on 25/11/2014 on the name of my father chandra prakash srivastava now the issue is machine started making very loud sound after make many calls to your engineer then he visited and said that your blower is damaged and it doesn't comes under warranty.

Now suggest me for further.

Please find the bill attached.

Regards
Kushal srivastava
Nerolac paints
North head