Norcold N620 Service Manual

Contents

Norcold N620 Service Manual Manual pdf 8 page image

Service Manual 8Operating the Refrigerator Controls(models N640, N641, N640-IM, N641-IM,N840, N841, N840-IM, and N841-IM)Control panel:The refrigerator control panel (See Art01018) is between thefreezer compartment and the fresh food compartment. Tomaintain the operating control functions of the refrigerator, a12 volt DC power supply is necessary. The refrigerator andany other DC components in the vehicle, receive DC powerfrom the 12 volt system of the vehicle; either an auxiliarybattery, a converter, or the vehicle engine battery.The ON / OFF button [1] starts and shuts down the refrigera-tor:- If the refrigerator is shut down, push the ON / OFF buttonto start the refrigerator in auto mode.- If the refrigerator is operating, push and hold the ON /OFF button for two seconds to shut down the refrigerator.The TEMP SET button [3] controls the temperature adjust-ment of the freezer and the fresh food compartment. Thetemperature adjustment that you select does not change ifthe operation mode of the refrigerator changes.- Push the TEMP SET button and the temperature setting“1-9” appears in the center display [4].- Push and hold the TEMP SET button and the temperaturesetting changes.- The number “9” is the coldest temperature setting.The MODE button [2] controls the operation mode of therefrigerator:- Push and hold the MODE button and each of the fouroperating modes of the refrigerator flash one at a time inthe center display.- There is one automatic mode of operation and thereare three manual modes of operation.- When the mode of operation that you wish shows inthe center display, release the MODE button.Automatic mode operation:When you select AUTO mode, the refrigerator controlsautomatically select the most efficient energy source that isavailable for operation. If a more efficient energy sourcebecomes available, the refrigerator controls change from thecurrent energy source to the more efficient energy source.The controls select the energy source in this sequence:- When 120 volts AC is available to the refrigerator:- “AU” “AC” flashes in the center display.- This means that the refrigerator is operating on ACelectric.- After ten seconds, the “AU” “AC” goes off and only apower indicator remains.- If 120 volts AC is not available to the refrigerator:- “AU” “LP” flashes in the center display.- This means that the refrigerator is operating onpropane gas.- On 3-Way models only, if neither 120 volts AC norpropane gas is available to the refrigerator:- “AU” “dc” flashes in the center display.- This means that the refrigerator is operating on DCelectric.NOTE: DC electric operation is less efficient than ACelectric and propane gas. Use DC electricoperation only to maintain the refrigeratortemperature while in transit and if the otherenergy sources are not available. Do not useDC electric to initially decrease the tempera-ture of the refrigerator.If an energy source is available to the refrigerator, but is notoperating correctly:- A fault code shows in the center display.- The refrigerator controls try to change to a less efficientenergy source.- If a less efficient energy source is not available:- An audible alarm starts.- The refrigerator stops operation.- Refer to the “Fault Codes” section of this manual.