Norcold N611V SERIES Service Manual

Also see for N611V SERIES: Owner's manual

Norcold N611V SERIES Service Manual Manual pdf 26 page image

www.norcold.com/cda26 Refrigerator Service ManualN611v, N811v ModelsCOOLING UNITCooling System MonitoringHardware MonitoringAll refrigerators are factory equipped with a high limit thermalswitch mounted to the insulation canister just above the burnerbox. Should an abnormally high temperature occur the thermalswitch will OPEN. Anytime the thermal switch opens, theelectronic controls will disable ALL heat source outputs andthe Open High Limit error/fault code will be displayed on theoptical display (Refer to Fault Codes page 12).Reset the thermal switch by pressing the red reset-buttonlocated between the two terminals on the back of the switch.Refer to Fig. 23. When successfully reset, the resistancebetween the two terminals will be less than 1 ohm.NOR000096AFig. 23 - Reset PushbuttonWhen troubleshooting poor or no cooling, always check theburner flame appearance fi rst. Most faults on LP gas operationrelate to a "dirty burner."Refrigerant LeakageYellow powder or liquid deposits at the rear of the refrigeratoror ammonia smell inside the refrigerator indicate refrigerantleakage. Exercise extreme care when handling a leaking or asuspected leaking cooling unit. The cooling system refrigerantsolution consists of water, ammonia, sodium hydroxide, andsodium chromate.Disposal of Cooling UnitDispose of cooling unit according to local, state, and federalguidelines and regulations. Dispose of any liquid wasteor residue, according to pre-emergency planning and allapplicable local, state, and federal regulations.Do not, under any circumstances, release any waste orresidue directly into sewers, or surface waters. If any liquidleaks or spills from the cooling unit, contact the nearestenvironmental services for guidance.Troubleshooting Cooling FaultsA high percentage of cooling units returned labeled “faulty” arefully operational units. To troubleshoot cooling units see Fig.24.When troubleshooting poor or no cooling, check AC voltageinput to the power board, then check voltage output to theheater, and the heater's amperage draw.AC voltage problems, high or low voltages, can be causedby the RV AC power supply circuit. To troubleshoot AC faults,refer to Fault Codes on page 12.Poor or No Cooling on LP Gas ModePoor or No Cooling on AC Mode! WARNING:The thermal switch is not intended to be reset more than once.Multiple trips of thermal switch may indicate a more seriousover-temperature condition inside the cooling system andmust be handled by an authorized Norcold Service technician.! WARNING:Do not work on live circuits! Turn off and disconnectAC power and DC power supplies before attemptingto remove, service, or repair any of the refrigerator'selectrical or electronic circuits or components.! WARNING:LP gas (propane) is highly flammable andexplosive! Do not smoke, light fires, or create sparkswhen working on the LP gas system.Do not use an open flame to leak test any propanegas system component.! WARNING:Do not operate the refrigerator if the cooling unit isleaking or leakage is suspected.