I have a 9 year old fridge freezer Daeewoo FRS-U20ICB. It works but intermittently the internal temp control area hat has Frz and Ref leds, 1 to 5 has the bottom row ie Ref led 3 flashing and a bleeping can be heared with a clicking noise from within the top of fridge mounted circuit board. Because its not majorily affecting the use of fridge and its intermittently doing this didnt want to mess with it too much encase as u know make it worse than what it was in the begining! As the saying goes dont try to fix it if it aint broken! Any help people in this regard to try narrow it down would be most appreciated. Cheers.