I have searched and called all of the suppliers I can locate and each one has no idea about this control box.
I have a 14 frame extractor purchased over 4-5 years ago.
The control box is receiving power and the light blinks red on top, however it never switches to the blinking green, indicating its ready. We have taken the top cover off and have noticed one of the relays is not switching. The center relay (blue cover) on top is printed 4000 then beneath it is printed 24V DC.
I need to get this unit repaired before the end of June and would appreciate any helpful information or instructions.