Thanks, PS558- there are 4 buttons and the display screen:
one with a picture of air jets
one with a lightbulb
one with an up arrow
one with a down arrow
When I push the up arrow and then the jets button, the display scrolls through F2, F4, F6, and F8. I have no clue what this means.
I found the model number too- KB331DX.
A manual would be great, Dr Spa- thanks!
You guys, rock! Thanks for the quick replies.