I have a York D2EN036N that is having intermitant cooling failures. I am the second or third tech sent out to look at it.
On arrival unit blower was running no compressor. Power in to Y1 and Y2 at relay board.(031-00880-001) from stat. red light on top of board is on.
I killed the power to trace some wires and then re applied power, unit came on and ran normal.
I turned the power back off and checked some connections in the filter compartment at the economizer, everything looks good and tight. when i turned the power back on unit came right on, I tapped one of the relays on the relay board and it droped out the compressor, so I was thinking bad relay board. I now think I should have spent a little more time with it.
I do not have that much time in with economizers.
I am new to the company and dont want to have to eat crow.