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DO NOT install this refrigerator in below deck marine applications. Do not install this refrigerator in fixed indoor cabin or other dwelling applications. This refrigerator must use only NORCOLD designed and approved outside air in- take and exhaust ventilation for correct and safe operation. Any other ventila- tion could cause lethal combustion exhaust fumes and or/explosive propane gas fumes to be in the living area and/or below deck.
Replacement Parts Model Identification Use only authorized NORCOLD replacement parts. ® Models N61X, N81X, N62X, N82X, N64X, and N84X are Generic parts do not meet NORCOLD specifications ® 2-way refrigerators that operate on AC power or LP for safety, reliability, and performance. The use of gas.
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Figure 1. Refrigerator Information Label Location. Figure 2. Cooling Unit Bar Code Label Location. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
Make sure all hardware such as hinges and fasteners hazard, short electrical components, damage (retaining screws, etc.), are properly fastened. electronic circuits, and/or ignite a fire. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
SPECIFICATIONS N61X/N81X Models Storage volume N61X --------------------------------------------------------------------------------------------------------------------------------- 6.3 ft N81X --------------------------------------------------------------------------------------------------------------------------------- 7.5 ft Rough opening dimensions (H x W x D) N61X ------------------------------------------------------------------------------------------------------ 52 7 /8 in. x 23 in. x 24 in. N81X ----------------------------------------------------------------------------------------------------- 59 in. x 23 in. x 24 in.
Heat input ---------------------------------------------------------------------------------------------------- 1500 Btu/h @ 11 in. w.c. Orifice, new style -------------------------------------------------------------------------------------------------------------------- LP16 Orifice, old style ---------------------------------------------------------------------------------------------------------- 0.155 jeweled Gas ignition ---------------------------------------------------------------------------------- Automatic with flame sensing circuit Electrode tip-to-burner air gap --------------------------------------------------------------------------------------- 1/8 to 3/16 in. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
Heat input -----------------------------------------------------------------------------------------------------1500 Btu/h @ 11 in. w.c Orifice, new style -------------------------------------------------------------------------------------------------------------------- LP16 Orifice, old style ---------------------------------------------------------------------------------------------------------- 0.155 jeweled Gas ignition ---------------------------------------------------------------------------------- Automatic with flame sensing circuit Electrode tip-to-burner air gap --------------------------------------------------------------------------------------- 1/8 to 3/16 in. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
"no" "co" code. Off-level operation. See page 37. DIrty burner. See page 31. Low AC voltage. See page 34. Cooling fan inoperative. See page 35. Improper installation. See pages 22-26. Incorrect orifice. See page 29. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
N61X/N81X DISPLAYED FAULT CODES Probable Cause Reference Problem Refrigerator turned off. ON LED off. No 12 Vdc to refrigerator. See page 11. F1 fuse open. In AUTO operation: ON LED and GAS LED flashing at one second No AC power or LP gas available See page 16.
Fresh food compartment door open more then 2 minutes. See page 19. Lamp reed relay switch faulty. Flashing Temp Back-up operating system. See page 20. Setting No cooling detected by the controls. See pages 21 & 37. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
Fresh food compartment door open more than 2 minutes. See page 19. Lamp reed relay switch faulty. Flashing Temp Back-up operating system. See page 20. Setting No cooling detected by the controls. See pages 21 & 37. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
LP GAS Blank Blank Display Display AUTO Screen GAS check if flashing Screen N61X/N81X N62X/N82X N64X/N84X Measure voltage at power board 12VDC and GND1 connections 10.5 1. No DC power input from RV to unit. 2. Faulty wiring or connectors.
Refrigerator solenoid gas valve manual shutoff is open. LP gas pressure at the solenoid gas valve pressure tap is 10.5. Models and fault indicator displayed. LP GAS GAS LED flashing AUTO constantly N61X/N81X N62X/N82X N64X/N84X Check burner. Burner Clean and service burner. clean? See page 30.
To troubleshoot a dc LO fault, connect a charged 12 volt automotive battery to the power board. If the dc LO code clears, the fault was caused by unfiltered DC power. If the dc LO code does not clear, replace the power board. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
DC power. If the dc HI code does not clear, replace the power board. dc rE Fault Code – DC relay stuck closed Models and fault indicator displayed N64X/N84X DC relay stuck closed. Replace power board. See page 44. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
(green color) automotive blade type fuse. Resistance Check DC heater resistance. Replace DC heater. 0.81 to 0.91 Ω? See Figure. Replace power board. DC heater resistance 0.81 to 0.91Ω. Ω. Ω. Ω. Ω. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
Models and fault indicator displayed. LP GAS AUTO GAS check if flashing Does not operate on AC when set to AUTO. N61X/N81X N62X/N82X N64X/N84X Measure voltage at power board AC cord connection. 1. Check AC power input from RV to unit.
Model and indicator displayed. N64X/N84X Measure voltage at power board AC cord connection. Voltage Fault related to RV AC power distribution component or circuit supplying AC power higher than 132 Vac? to refrigerator. Replace power board. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
RV AC voltage to the refrigerator is 108 to 132 volts. No other appliance or lighting circuit is connected to the refrigerator AC circuit. Models and indicator displayed. LP GAS AUTO N61X/N81X N62X/N82X N64X/N84X Check AC heater wires for loose or damaged connector.
3. If the light does not turn off when the magnet on when the door is closed. passes under the optical control display, replace the optical control display assembly. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
N61X/N81X Backup Operation. When the refrigerator is operating in BOS, the length When the N61X/N81X controls shift to BOS operation, of the cooling cycle has to be regulated manually the ON LED (green) flashes once every three seconds.
Fault Code – No cooling detected by the controls Models and indicator displayed. LP GAS AUTO N61X/N81X N62X/N82X N64X/N84X Check for cooling at fin assembly. 1. Check for ventilation obstructions and leveled operation. Cooling 2. Reset power board as shown in detected? figure and described in procedure.
1/4 inch or less Condenser 1/8 inch maximum if wider (see Figure 4) Absorber coils 1 inch maximum. If wider, see Figure 5. Intake vent Figure 3. Roof Exhaust Venting Arrangement. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
0 inch 1/8 inch Air intake vent 0 inch 1/4 inch Rear 0 inch 1 inch Figure 5. Baffles Required for an Inboard Roof Exhaust Vent Installation. Table 1. Clearances for Roof Vented Installations. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
ANSI standards. installation manual and Ventilation Guidelines For Gas/ As the result of this testing, NORCOLD was able to Electric Refrigerators for the latest information on reduce the baffle configuration down to two baffles for approved vents, installation instructions, and special the N6XX and N8XX models.
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Figure 6. Baffle Arrangement for Enclosures Depths of More than 24 Inches and Less than 26 Inches. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
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Figure 7. Baffle Arrangement for Enclosures with Depths of 26 Inches or Greater. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
30 seconds after initiating leaking. Hidden joints should be examined thoroughly ignition, power to the gas valve is turned off and gas using an inspection mirror. mode is locked out. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models Errata Sheet, 01/16/04...
(models manufactured before February 16, 1999) are fitting (from equipped with the old style solenoid gas valve. See RV LP gas system) Figure 10. Use a NORCOLD gas valve conversion kit, part ® number 621334, to replace an old style solenoid gas valve assembly.
LP gas mode. Burner Tube The burner tube is 1/4 inch OD aluminum tubing with Gas valve connection an anti-vibration loop and a double flare at each end. See Figure 13. Figure 13. Burner tube. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
See Figure A flame that is mostly orange or yellow, is erratic, and unstable, indicates a "dirty" burner. Burner cleaning procedures appear on page 30. Figure 16. Flame Appearance. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
Close the LP gas valve and the solenoid gas valve drills through the opening will alter the volume of LP manual shut-off. gas flow to the burner and create a fire hazard potential. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
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Figure 17. Drip Cup and Burner Box Cover. Canister Flue Baffle Electrode Burner Orifice adapter with LP16 orifice Figure 18. Burner and Components. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
It can also turn off the The DC heater circuit fuse is a standard 30 amp refrigerator or prevent the refrigerator from turning off. (green) automotive blade type fuse. It is located on the power board, terminal F2. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
Turning the refrigerator on automatically The AC circuit fuse is a fast acting 5 amp " x 1 " powers the heater. AGC type. It is on the power board, terminal F3. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
130 °F. The switch turns the fan off Fan thermostatic switch when fin temperature falls to approximately 115 °F. NORCOLD fan kit is wired to the power board 12 Vdc ® connections using "Y" type wire connector. The fan circuit is protected by an in-line fuse (included in the kit).
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1 amp in-line fuse - 12 Vdc connection 12 Vdc 12 Vdc + 12 Vdc connection Figure 26. Fan with Wiring Arrangement for Field Figure 27. NORCOLD Fan Kit Wiring Pictorial. Installed NORCOLD Fan Kit. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
DC). The power board can then only be reset by an authorized service center after troubleshooting and The cooling unit or its performance are not affected testing cooling system operation. See Page 21. when the vehicle is in motion Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
Do not, under any circumstances, release any waste or residue directly into sewers, or surface waters. If any liquid leaks or spills from the cooling unit, contact the nearest environmental services for guidance. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
Burner, orifice, flue, deflector cap, flue baffle. LP gas pressure. Level refrigerator as outlined Refrigerator in Owner's Manual and operating leveled? specifications. Maximum off-level limits: 3 degrees side to side. 6 degrees front to back. Continued on page 40. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
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Unit is operating normally. setting for a period of 8-12 hours. normal Freezer -5 F to -10 °F. ° Fin temperature 18 °F to 25 °F. Check thermistor and power board operation. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
3. Turn OFF RV DC power to the refrigerator. Figure 32, page 44. 4. Disconnect the DC power supply wires from the 9. Remove two top cabinet retaining screws. See power board. Figure 32, page 44. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
• Reinstall the fan bracket, fan, thermostat, and • Remove DC heater (3-way models only). Retain wiring. See wiring diagram on the outer surface of the heater for reinstallation. the fan bracket or refer to Figure 27, page 36. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
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GV and GV_GND. 1/2 in. bead of sealant 19. Plug the AC cord into the power board. 20. Connect the spark/sense electrode assembly to the power board. Figure 30. Application of Sealant. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
12VDC and 12V_GND1. 11. Open the LP gas tank valve(s), then leak test LP gas connection at solenoid gas valve. 12. Leak test the burner solenoid gas valve and orifice assembly burner tube connections. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
ELECTRONIC COMPONENTS N61X/N81X Power board Inputs, outputs, monitoring, and diagnostic functions are managed and controlled by the power board. Inputs, outputs, monitoring information, and diagnostic functions are communicated through the optical control assembly. The wire harness interfacing the power board with the optical control assembly is "foamed"...
Positive wire (+) to terminal 12VDC. Negative wire (–) to terminal 12_VGND1. N61X/N81X Optical Control Assembly N64XIM/N84XIM (ice maker) • Reinstall the water valve and bracket assembly. 10. Turn ON the RV DC power to the refrigerator.
+ 12 VDC / VCC 120 VCA Gas valve Gazer la soupape AC heater Ventilateur Fan thermostat CA chauffage Ventilateur thermostat N61X/N81X Wiring Pictorial. Power board / 12V GND1 -12 VDC / -12 VCC Panneau de distribution RED/ BLK/ RED/...
120 VAC Regulateur de tension AC heater / Door switch / Display board / 120 VCA CA chauffant Porte commutateur Panneau de affichage N62X/N82X/N64X/N84X/N64X.3/N84X.3 Wiring Schematic – Units with serial number 851759 and higher. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
Fuse, 3 amp for water line heater Lamp/Thermistor Relay, water line heater AC power cord Water line heater Fuse, 5 amp/AGC type Thermostat, water line heater Fuse, 5 amp/standard auto type Spark/sense electrode wire assembly Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
Thermistor Light, fresh food compartment 120 Vac connection Divider heater AC heater On/OFF switch DC heater, 3 way units only Voltage regulator Heater, ice maker water line Mode switch Thermostat, ice maker water line N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
Removal and Installation of Optical Control Assembly. To remove the optical control assembly: Figure 37. N61X/81X Optical Control Assembly With Front Box. 1. Turn off the refrigerator. 2. Remove the front box retaining screw, then remove the front box.
"gas lock-out." In turn, the controls command the GAS LED to flash at one second intervals. The "F"/"no FL" flowchart on page 12 provides information to troubleshoot no flame faults. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
To install the optical control assembly: 1. Connect the optical control assembly to the wire harness. 2. Install the optical control assembly on the divider. Figure 41. Wire Harness Connection. Do not overtighten the retaining screw. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
Screen 4. Shift from AUTO LP GAS to AUTO AC In AUTO mode, the controls shift automatically from AUTO LP GAS back to AUTO AC when the controls detect that AC power has become available. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
1. Automatically restore AC–Manual Mode operation. Page 62, Diagnostic Mode–N62X/N82X Mode, Screen 4. 2. Clear the "A" fault code from the screen. However, the recorded fault history will not be erased from memory. 3. Display the AC LED. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
To install the optical control assembly. 1. Connect the optical control assembly to the wire harness. 2. Install the optical control assembly on the divider. Figure 44. Wire Harness Connection. Do not overtighten the retaining screw. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
"LP" alternate flashing on the Screen 4. display as the controls start a 30 seconds trial-for ignition. 4. The controls sense the flame, turn off the "AU" and "LP", and display the ON LED. See NOTE 1. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
Use the following references to identify, troubleshoot, Third priority: DC power – 3-way units only. and correct a no AC fault. Page 16, "A"/"no" "AC" fault codes troubleshooting flowchart. Page 62, Diagnostic Mode – N62X/N82X Model, Screen 4. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
NOTE 5 AUTO LP mode remains in "gas lock-out" until a full cooling cycle on AUTO AC is completed. "Gas lock- out" can also be cleared by turning the refrigerator OFF then back ON. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
LED segment that represents the selected operation mode appears on the display (AUTO, AC, or LP GAS). Turning the refrigerator OFF then back ON also exits the Diagnostic Mode Figure 46. Diagnostic LEDs Segments Identification. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual Errata Sheet, 01/16/04...
LED segments. If a fault MODE occurred, its assigned LED will light. Thermistor failure. Flame sense failure AC voltage low AC voltage high Press the button to bring up screen 6. MODE Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
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Sensing burner flame DC voltage normal fin temperature DC voltage lower than 10.5 volts Press the button to return to screen 1. Press the button to bring up screen 8. MODE MODE N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual Errata Sheet, 01/16/04...
2. Release the buttons as soon as the TEMP MODE ON Light display shows Turning the refrigerator OFF then back ON also exits Figure 48. Diagnostic LEDs Segments Identification. the Diagnostic Mode. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
3. Wait five seconds. 4. Press and hold the button until show on the screen. Press the button to bring up screen 4. MODE Press the button to bring up screen 7. MODE N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
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DC power to ignition circuit AC voltage lower than 108 volts DC power to light switch *3-way models Press the button to bring up screen 9. Press the button to return to screen 1. MODE MODE Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
Wire Harness 120 Vac Terminals Heater Foil Type Water Line Wire Lead Heater Water Valve Assembly Water Valve Assembly without water line heater with water line heater Figure 49. Ice Maker. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual Errata Sheet, 01/16/04...
Freezer Plate Screws (2) (1 in. long with washer) 1 inch long screws with washers) 10. Attach the upper mounting brackets to the freezer Figure 50. Ice Maker Mounting Hardware. plate (two, 1/2 inch screws). Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
As the ejector fingers reach the 12 o'clock position the water valve energizes. Figure 53. Water Fill Adjustment Screw and 6. If the water valve does not remain energized between 3.5 Indicator. and 7.5 seconds, see Water Fill Adjustment, page 70. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
OL: check for loose wire harness connections at the water valve or an open solenoid coil. 00.0 Ω: indicates a short between the ice maker Figure 55. Measuring water valve solenoid and the water valve. resistance across points V and N. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
4 1/2 DIGITS 1 Seconds µA and the water valve connections mA µA 400mA MAX CAT II FUSED 10A MAX 1000V MAX FUSED Figure 57. Checking voltage to motor across test points N and M. N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
Switch (Shut-off arm) Mold Heater Thermostat Thermal Fuse Black White Green Ground Solenoid Fill switch (water valve) Brown Motor Motor switch N64X IM/N84XIM – Wiring Schematic for Ice Maker Wired to Refrigerator AC Cord. Refrigerator Service Manual www.norcold.com/cda N6XX/N8XX Models...
(Shut-off arm) Mold Heater Thermostat Thermal Fuse Black White Green Ground Solenoid Fill switch (water valve) Brown Motor Motor switch N64X IM/N84XIM – Wiring Schematic for Ice Maker Wired to White AC Power Cord N6XX/N8XX Models www.norcold.com/cda Refrigerator Service Manual...
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Publication No. 619394E (0-28-04) N61X/N81X N62X/N82X N64X/N84X/N64X.3/N84X.3 NORCOLD CUSTOMER SERVICE Telephone ....... 1-800-444-7210 NORCOLD® Fax ..........937-497-3183 P. O. Box 4248 World Wide Web ... www. norcold.com/cda Sidney, OH 45365-4248...
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