Norcold 9182 Service Manual & Parts List

Also see for 9162: Operator's guide Installation requirements Parts list

Contents

Operating Sequence-900 and 9100 SeriesAuto ModeWhen AUTO mode is selected, the operating control automatically selects the energy source using the following priorityscheme:When 120 volt AC is available, the refrigerator will operate on AC electric. If 120 volt AC is not available, the refrigeratorwill switch to and operate in LP Gas mode. On 3-Way models, when neither 120 volt AC nor LP gas are available, therefrigerator will switch to DC electric. DC electric operation is not as efficient as LP Gas or AC electric operation. DC electricshould not be used to initially cool refrigerator; it should be used only when other modes are unavailable (for example; whilein transit). If no input source (i.e 120 VAC, 12 VDC, or LP Gas) is available, the refrigerator will cease operation.During operation in AUTO mode, when a higher priority energy source becomes available, the operating controls will ceaseusing the current energy source and will switch to the higher priority energy source. For example, if AC electric becomesavailable while refrigerator is operating in AUTO LP GAS mode, the refrigerator will switch to AUTO AC operation. If ACpower becomes available and is found to be non functional or out of tolerance, the control will revert to the lower-prioritysource.Manual ModeTo operate in MANUAL mode, press and hold MODE button until word AUTO (900 Series) or the AUTO LED (9100Series) disappears and desired operating mode is displayed. If energy source is interrupted while operating in MANUALmode, the corresponding fault indicator will appear, and refrigerator will cease operation until an alternate energy source isselected or the problem is corrected.AUTO and MANUAL Modes - Gas Operation OnlyIf gas does not ignite within 30 seconds, which may occur on initial start-up, the refrigerator’s gas valve will automaticallyclose and the operating controls will select an alternate energy source ( AUTO Mode) or, MANUAL mode, will revert to astand-by mode in which a fault indicator will appear. The fault indicator will remain until operating controls are turned OFFand then ON again. If gas does not ignite after several attempts, refer to "Diagnostic" and "Trouble Shooting" sections forcorrective actions. A different mode of operation may be selected by pressing and holding MODE button. The refrigeratorwill not switch to new operating mode until the MODE button is released.LP GAS Mode OperationWhen operating in LP Gas mode, the control opens the gas valve and sends a spark to the burner to ignite flame. The ignitioncycle is carried out as follows.1. The gas valve is opened and spark output is activated for 1 second.2. The spark output is de-activated and flame sense circuit is monitored. If there is no flame 1 second later,spark output is re-activated.3. Steps 1 and 2 are repeated until 30 seconds have elapsed, or until a flame is sensed during Step 2.If burner fails to ignite, the control will turn off gas valve, lock out LP GAS mode, and display appropriate fault code. With3-Way models operating in AUTO LP GAS mode, the control will automatically switch to DC Electric (heater) mode. Whileoperating in DC Electric mode, the appropriate fault indicator will be displayed. If DC voltage is available to refrigerator butis below specification, the appropriate fault indicator will be displayed.If the flame goes out, the control attempts to re-ignite flame, beginning with a new 30 second ignition trial. There is no limitto the number of times flame can be lost and re-ignited.If the control is displaying a fault indicator, pressing MODE button will disable the indicator and re-initiate 30 second trialfor ignition. During 30 the second time interval, an alternate mode of operation can be selected by pressing the MODE button.When control measures input voltage below 10.5 VDC, gas operation is locked out.Back-Up Operating System (BOS)The refrigerator’s operating controls feature a Back-Up Operating System which provides a means for the refrigerator tocool in the event of a temperature sensor failure. Once the BOS mode is entered, the temperature sensor is ignored and thecontrol displays a fault indicator. This mode provides adjustable cooling until the refrigerator is serviced. Norcold recommendsthe refrigerator owner seek service as soon as practical to restore normal operation.6