Phals with few and small flowers

[JerseyGirlBecky]

I have a dozen phals that seem to be healthy and doing well. the leaves are nice and lots of new roots. They are in the orchiata and I fertilize with the Shultz orchid fertilizer. two have spiked and bloomed recently, but they only have small flowers. One had four and they did not last long. the new one looks like it has only two and they are not open yet. what am I doing wrong? the all bloomed nicely last year but are doing terrible this year. They are in an eastern window and I mist a couple of times a day. They are not put outside and the air conditioner is running a lot on these hot days. Anyone have this problem. Wish I could send pictures but no camera. Sorry
Becky