How much fertilizer are you using?

sounds like either too much nitrogen or too much heat to me

same thing happened to me on my orange habs (and kind of my carribean reds they were doing ok). they just wouldnt go the flower and little peppers turned yellow and dropped off. so i removed all the peppers and flowers on the orange hab started furtalizing less watering more and what i think really did it was i gave it some midday filtered shade by placing it under our deck table which is like a thick metal mesh so some light gets through but it still is shaded from about 12:30 to 7:00 about. our deck is south facing. after about 5 days of this there both takin off sproutin new flowers that stay and growing more. the carribeans are actually starting to turn red hopefully they continue to prosper

Are you sure the peppers haven't formed, or have the flower petals simply dried up, and the peppers are there, though very small? A small hairlike style will still be there, indicating the pepper is there, just not grown yet, and the dead petals will be around it until they fall off. Habaneros can be very late, and I have had some types that didn't even flower until August sometime, and barely ripened before frost.

Dave

Could be the same issue I had this year with my Habs. I started my Hab's too late to get peppers this year. I started them March 17th and was told that I should have started them in January. I do have a single pepper on one plant though...how cute LOL! They too have flowered like crazy all season, but they just fall off.
Now, I've brought the Habs in to winter-over for a crop next year and god willing for many more years to come :D

Vera

Too much water and fertilizer? My hot peppers seem to prefer lean soil, with good drainage, and not much water.
Even when I carelessly let them wilt occasionally from lack of water, or let them get rootbound in small pots, they seem to do better than the plants I have in big pots with rich, well watered soil.

all strains of habaneros take a very long time to mature.
depending on your zone, im in zone 4/5 and will harvest
a small amount, what is still green at the end of season
ill bring inside to ripen. you can also dig plant b-4 frost
and store inside basement/garage watering very seldom as plant will go dormant then re-plant outside after soil warms above 75 degrees f. after a few years your plant will look like a bush similar to native mexico plants.

all my peppers really took off when i left them for dead.
overgardening was my biggest problem this year .
having a greenhouse with all the pots at eye level and bordom is bad bad bad .
took all my pots to the garden lined them up and walked away .
2 weeks later i had all kinds of peppers.
most plants just need some water and the rest they will do.

I have a similar, but slightly different problem. I have 2 Manzanos. One is in the ground and one is in a pot. I think they get equal amounts of sun. The one in the garden is growing like gangbusters and has 4 fruit. I have already harvested 1. The plant in the pot, similar to michaellin's has had plenty of blooms, but NO fruit. Why the difference? Should I try moving the one in the pot?
John