well honda called back & said they would cover the cost of the heater assembly. i have to pay for the labour which is still $500 + taxes which sucks but i guess it's better than nothing. i had a closer look today & came to the conclusion that the shaft on one of the 2 doors that are supposed to swing is broken off inside the box & even though the linkage moves, nothing happens inside. it would be a nightmare to take the whole heater assembly out & apart for repair so i'm calling honda today to tell them to go ahead & order the part. crap! this should be the end of my heater problems so thanks to everyone for your thoughts.