wrote in message
ups.com...

This board has no humidity sensor. that is external and a mechanical
one. what this board does or is suppose to do when you turn the knob on
humidistat this waits for a couple of mins and then relay clicks and
the dehumidifier starts. this doesnt click at all. I moved the relay to
another board and tested and that is good. any other reference material
or site/forum to get additional help would be appreciated.

Then it is a time delay, designed to prevent quick restart of the
compressor. You need a circuit diagram, service manual or several years of
experience to repair it.