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Hi my name is Robert..
To me it sounds like you do not have that sensor, it should be clipped to the absorber coils, click HERE to view. IF you do not have that I would get it taken care off under the recall. Can not bypass that sensor as it is a major hazard as you are taking away the high temp controls and these can catch on fire if you had an issue with the cooling unit.
IF the board is clicking It could also be at fault..... Robert