【Function:】The defrost control board for commercial air conditioning. The defrost control board senses when frost has formed on the evaporator coil and begins the defrost cycle.
【Attention:】Please check everything before going and replacing board,Frosting for too long may cause damage to other units, which may cause the new replaced circuit board to fail to work.
【Note:】Please field testing and troubleshooting before installing,then operate and install in sequence.