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1 Gas/Electric RefrigeratorsService ManualDO NOT install this refrigerator in below deck marine applications. Do not install this refrigerator in fixed indoor cabin or other dwelling applications. This refrig-erator must use only NORCOLD designed and approved outside air intake and exhaust ventilation for correct and safe operation. Any other ventilation could cause lethal combustion exhaust fumes and or/explosive propane gas fumes to be in the living area and/or below No. 618968C (02-27-07) 2004 NORCOLD, INc. All rights ModelsRefrigerator Service ManualThis page intentionally left ModelsRefrigerator Service ManualTable of this Manual ..1 Model Identification ..1 Information Label ..1 Cooling Unit Serial Number ..1 Certification and Code Requirements ..1 About installation ..1 Replacement Partsi ..1 Technical Assistance .. Notice ..3 Attention Statements ..3 Safety Statements .. Models .. :. Display Refrigerator does not turn on ..9"no" "LP" / "no" "FL" Fault Code.

2 10"dc" "LO" Fault Code ..11"Sr" "FS"/"Sr" Fault Code ..11 "dc" "HI" Fault Code ..16"Sr" "CL"/"AC" "rE" Fault Code ..16"no" "AC" Fault Code ..17"AC" "LO" Fault Code ..18"AC" "HI" Fault Code ..18"AC" "HE" Fault Code ..19"dr" Fault Code ..20 Thermistor Open ..21 Backup Operating System (BOS) ..211200XX/120X-IMXX Backup Operation, S/N 832170 and Lower ..211200XX/120X-IMXX Backup Operation, S/N 832171 and higher ..21 Power Board Resetting Procedurei ..22"no" "co" Fault Code S/N 832171 and higheri .. Exhaust Venting ..19 Air Intake Vent ..19 Roof Exhaust Vent ..19 Baffles ..20 Vertical Angled Baffles ..20 Double Sidewall Venting ..21 Air Intake Vent ..21 Sidewall Exhaust Vent .. Requirements ..24 Components ..24 Testing for LP Gas Leaks ..25 Gas Valve ..25 Solenoid Gas Valve Connections ..25 Replacing Old Style Gas Valve ..25 Burner Tube ..26 Burner ..26 Orifice ..26 Flue ..27 Flue Cap ..27 Flue Baffle ..27 Burner Cleaning Procedure .. Voltage Requirements and Polarity.

3 29 Power Board DC Fuse ..29DC Power Wiring Requirements ..29AC/DC Converter as Power Source ..29 Divider Heater ..29 Lamp/Thermistor Assembly ..29AC Power Requirements ..30AC Heaters ..30AC Heaters Circuit Fuse ..30 Power Board AC Power Cord ..30 Ice Maker AC Power Cord - Earlier Models ..31 Ice Maker AC Power Cord ..3112 volt DC Fans ..32 Heat Absorption ..32 Leveled Operation ..32 Gradual Decrease in Cooling Efficiency ..32 Cooling Performance Monitoring Control ..32 Cooling Unit Monitoring Control Operation ..33 First "no co" Fault Ocurrance ..33 Second "no co" Fault Ocurrence ..33 Refrigerant Leakage ..33 Disposal of Cooling Unit ..33 Cooling System Diagnostic Flowchart ..34 Replacing the Cooling Unit ..36 Removing the Refrigerator and Cooling Unit ..36 Removing Cooling Unit ..36 installation of Replacement Cooling Unit ..36 Reinstallation of Refrigerator into Enclosure .. Board ..40 Removal Power Board ..40I1200XX/120X-IMXX ModelsRefrigerator Service ManualInstallation Power Board.

4 Control Display Assembly ..41 AUTO AC Operation ..41 Modes of Operation, S/N 832170 and Lower ..42 AUTO ..42 AUTO LP Operation ..42 Shift from AUTO LP GAS to AUTO AC ..42No AC Power and No Flame ..42 Troubleshooting No Flame and No AC Faults ..43AC Manual Mode ..43No AC Power Present or Loss of AC Power ..43AC Power Restored ..43 Troubleshooting "no AC" Fault ..43LP Manual Mode ..43 Modes of Operation, S/N 832171 and Higheri ..44 AUTO ..44 AUTO AC Operation ..44 AUTO LP Operation ..44 Shift from AUTO LP GAS to AUTO AC ..44No AC Power and No Flame ..44 Troubleshooting No Flame and No AC Fault ..44AC Manual Mode ..45No AC Power or Loss of AC Power ..45AC Power Restored ..45 Troubleshooting "no AC" Fault ..45LP Manual Mode .. Mode ..46 Accessing the Diagnostic Mode ..46 Changing Screens ..46 Exiting the Diagnostic Mode ..46 Screens and Diagnostic LEDS Information, Units with S/N 832170 and Lower .. Mode ..49 Accessing the Diagnostic Mode ..49 Changing Screens.

5 49 Exiting the Diagnostic Mode ..49 Screens and Diagnostic Segments Information ..56 Wire Harness ..56 Water Fill Tube ..57 Water Fill Line ..5712 volt DC Water Line Heater ..57 Water Valve (Without Water Dispenser) ..58 Water Valve Replacement Procedure ..58 Ice Maker Troubleshooting Chart ..59 Water Valve Service ..59 Replacing Ice Maker ..60 Cycle Testing Ice Make ..61 Checking Water Valve Operation ..61 Water Fill Adjustment ..62 Checking Water Valve Solenoid Resistance ..64 Checking Mold Heater Resistance ..63 Checking Voltage to Motor ..63 Winterization ..63II1200XX/120X-IMXX ModelsRefrigerator Service ManualAbout this ManualThis Service Manual provides maintenance, diagnostic, and repair information for NORCOLD, INC. model 1200XX/120X-IMXX gas absorption refrigerators. It is a reference tool designed for technicians who are knowledgeable in the theory and operation of gas/electric absorption refrigerators, liquefied petroleum (LP) gas (propane) system, and AC/DC electrical systems as installed in a variety of recreational vehicles (RV).

6 All information, illustrations, and specifications contained in this publication are based on the latest product information available at the time of publication. NORCOLD reserves the right to make changes at any time without IdentificationModel 1200XX/120X-IMXX are 2-way refrigerators that can operate on AC power or LP gas. The electronic controls operate on 12 (s) appended to the model number identify factory installed accessories. For example, a 1200-IMSS is a 2-way refrigerator equipped with an ice maker and stainless steel LabelThe information label is located in the upper right corner of the fresh food compartment just below the divider. See Figure 1, page 2. The label provides the following information:n Serial Model LP gas (propane) AC voltage and DC voltage and Design Vent kit Unit Serial NumberThe cooling unit has a separate serial number that appears on the cooling unit bar code label. The label is affixed to the surface of the cooling unit leveling chamber.

7 See Figure 2, page and Code RequirementsNORCOLD 1200XX/120X-IMXX gas/electric absorption refrigerators are certified under the latest edition of ANSI standards for installation in mobile homes or recreational vehicles. NORCOLD, INC. 1200XX/120X-IMXX gas/electric absorption refrigerators are also certified with the Canadian Standards Association, components are InstallationRefrigerator installation must conform with the 1200XX/120X-IMXX installation Manual for the NORCOLD, INC. limited warranty to be in effect. installation must also comply with applicable local codes and standards set by the applicable certification PartsUse only authorized NORCOLD replacement parts. Generic parts do not meet NORCOLD specifications for safety, reliability, and performance. The use of unauthorized aftermarket or generic replacement parts voids the refrigerator's limited warranty AssistanceIf unable to resolve technical issues using the information provided in this Manual , technical support for Service technicians is available through the NORCOLD, INC.

8 Customer Service Center:' Telephone: .. Fax: ..1-937-497-3183.; World Wide Web: .. following information is required to process technical support requests:n Model Serial Make, model, and year of recreational ModelsRefrigerator Service ManualFigure 1. Refrigerator information label location Figure 2. Cooling unit bar code label locationNORCOLDS erial Number700000 Made in USANORCOLDS erial NumberXXXXXXMade in USAP lain text labelNORCOLDS erial NumberXXXXXXMade in USABar code label1 COLD-9 COLDESTONSET ,OHIO pourle GPL, equipped por le propanTESTED FOR LP GAS: EQUIPPED FOR PROPANE / Amps 456 WattsSUPPLY alimentati11 " " LBSREFRIGERANT/frigorigeneR707 TEST PRESSURE /D'ESSAI 800 Amps 23 WattsSERIAL # / N de serieXXXXXXXMODEL # / N de modeleGROUP CODE / code deINPUT / puissance1200 LRIMFor recreational vehicle installationMin. installation clearance 0" sides, topbottom, back. Install only with Kit #3 See installation instructionsPour installation vehicule de plaisanceDegagement minimum pour I'installation0" cotes, haut,bas, arriere, Installeruniquement avec latrousse n_3 Voir les instructions d' ModelsRefrigerator Service ManualWARNINGThe above heading identifies hazards or conditions, which if ignored can cause serious injury, death, and/or extensive property StatementsDo not modify, alter, or equip the refrigerator to the use of any other fuel (natural gas, butane, etc.)

9 1200 refrigerators are designed and equipped for the use of LP gas propane gas installation , adjustment, alteration, or maintenance of the refrigerator can cause personal injury, property damage, or not smoke, light fires, or create sparks when working on the propane gas not use an open flame for leak testing any of the propane gas system components. Propane gas is highly flammable and use two wrenches to tighten or loosen LP gas connections. Damaged connections, piping, and components create the potential for gas electrical connections and repairs to the refrigerator must comply with all applicable codes. Refer to the certification and code requirements section of the 1200XX/120X-IMXX installation Manual for more not work on live electrical circuits. Turn off AC power and DC power sources before attempting to remove, Service , or repair any of the refrigerator's electrical or electronic not modify, bypass, or eliminate any of the refrigerator's electrical components, electronic circuits, or propane gas system not wet or spray liquids on or near electrical connections or electronic components.

10 Most liquids, including leak detection solutions, are electrically conductive and pose the potential for an electric shock hazard, short electrical components, damage electronic circuits, and/or ignite a not use leak test solutions that contain ammonia or chlorine. Ammonia and chlorine degrade copper and brass not try to repair or recharge the cooling unit. Do not bend, drop, weld, drill, puncture, saw, or strike the cooling a leaking cooling unit with extreme caution! The cooling unit contains ammonia, hydrogen, and sodium chromate. Ammonia can cause severe skin and eye burns. Hydrogen is highly flammable, can ignite, and burns with an intense flame. Certain chromium compounds, such as sodium chromate, are not use extension cords. Do not remove the grounding prong from the refrigerator AC power cord. Do not use a two prong adapter to connect the refrigerator to the ac not over-fuse electrical circuits. Use specified fuses and AWG wire sizes. The "Specifications" section of this Manual provides fuse size information.