"dc" "LO" Fault Code –dc voltage input to power board is lower than 10.5 volts
Before beginning this procedure: Make sure RV DC voltage to refrigerator is at least 10.5 and no more than 15.4 volts. Determine if the "dc LO" fault code displays when the converter is the source of DC power. Make sure no other appliance or lighting circuit is connected to the refrigerator DC circ
Electronic controls operate on 12 volt DC. When an AC/DC converter is used to supply DC power, the refrigerator circuit must be connected to the appliance output terminals of the converter (filtered side).
If the refrigerator circuit is connected to the unfiltered side, the AC ripple generated by the converter may cause a "dc LO" fault code to display.
To troubleshoot a "dc LO" fault, connect a charged 12 volt automotive battery to the power board. If the "dc LO" code clears, the fault was caused by unfiltered DC power.
If the "dc LO" code does not clear, replace the power board (