Norcold N500 Service Manual
Also see for N500: Owner's manualOwner's manualInstallation manualParts list
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Contents
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DRAFTNOT FOR PUBLIC RELEASE49www.norcold.com/cda N500/N510 ModelsRefrigerator Service ManualAUTO DC Operation – 3-Way Units OnlyIn AUTO DC mode, the controls shift to dc powerwhen ac power is not present and flame is notsensed. When the controls shift to AUTO DC:4 If a flame is not sensed the controlsshift to AUTO DC Mode. The AUTOand DC indicators display as thecontrols search for DC power.2. The AUTO and AC indicatorsdisplay as the controls search for acpower.1. The AUTO mode operation indicatordisplays.No AC Power or Loss of AC PowerWhen no ac power is available or ac power is lost, thecontrols:2. Record and store the no ac fault in diagnosticsnonvolatile memory fault history.Troubleshooting an "A" FaultUse the following references to identify, troubleshoot,and correct a no ac fault. Page 17, "A" fault code troubleshooting flowchart. Page 52, Diagnostic Mode–N510 Model, Screen 4.AC Power RestoredWhen ac power is restored, the controls:1. Automatically restore AC Manual Mode operation.2. Clear the "A" fault code from the screen. However,the recorded fault history will not be erased frommemory.3. Display the AC LED.AC Manual ModeWhen the AC Manual Mode is selected, ac power is theonly heat energy source selected by the controls. Whenthe AC Manual Mode is selected:2. The AC LED stays on as long as the AC ManualMode is selected.LP GASACAUTO1. Provide a visual warning by flashingthe “A” (no ac) fault code.1. Mode of operation selected isindicated by the AC LED.LP GASACAUTO5. Once dc power is detected, the AUTOLED displays.LP GASACAUTO DCLP GASACAUTO DCLP GASACAUTO DC3. When ac power is not detected thecontrols shift to AUTO LP mode. TheAUTO and LP indicators display as thecontrols start a 30 second trial-forignitionLP GASACAUTO DCLP GASACAUTO DCThe auto sequence described in steps 1 through 5 isrepeated after the completion of each cooling cycle toenable the controls to select a higher priority heat energysource if available.The controls priorities for selecting a heat energy sourceare: First priority: AC power. Second priority: LP gas. Third priority: DC power – 3-way units only.NOTEAUTO DC and DC Manual Mode maintain cooling only.NOTE |
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