Table of Contents
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Service Manual
Gas Electric Refrigerators
Polar 10 Series (N10LX, NA10LX) Models
Improper installation, adjustment, altera-
tion, service or maintenance can cause
personal injury or property damage. Refer
to this manual. For assistance or addition-
al information, contact a qualifi ed installer,
service agency, or the gas supplier.
Questions? 1-800-444-7210
Part No. 639412 Rev. A 10.21.2019
© 2018 NORCOLD, INC. All rights reserved.
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Table of Contents
Related Manuals for Norcold Polar 10 Series
Summary of Contents for Norcold Polar 10 Series
- Page 1 Service Manual Gas Electric Refrigerators Polar 10 Series (N10LX, NA10LX) Models Improper installation, adjustment, altera- tion, service or maintenance can cause personal injury or property damage. Refer to this manual. For assistance or addition- al information, contact a qualifi ed installer, service agency, or the gas supplier.
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Page 2: Table Of Contents
Fault Code - “Sr” with Audible Alarm .............23 Fault Code - Flashing Temperature Setting ..........24 Blank Display ....................25 ■ La version française commence à la page 37 ■ La versión en español comienza en la página 73 www.norcold.com Polar Series N10LX, NA10LX... -
Page 3: Safety
Make sure all hardware, such as hinges and fasteners (i.e., retaining screws), is Do not use an open fl ame for leak testing properly fastened. any of the ULP gas system components. ULP gas is highly fl ammable and explo- sive. www.norcold.com SERVICE MANUAL... -
Page 4: Introduction
1167359 NORCOLD Technical Assistance Fig. 2 - Cooling unit bar code label location. If unable to resolve technical issues using the information provided in this manual, technical support is available through NORCOLD ® Customer Service Center: Telephone: 1-800-444-7210... -
Page 5: Refrigerator Model Number
Introduction, cont’d. Refrigerator Model Number Model Number Codes Explanation N = Norcold NORC OLD Serial Number xxx VOLTS - AC xx HZ X = Sequence number indicating x.xx AMPS xxx Watts custom features / aftermarket XA / xx VDC xx HZ x.x AMPS xx xx Watts... -
Page 6: Specifications
Burner Rating (Heat output) --------------------------------------------------------------------------1750 Btu/h @ 11 in. w.c. Burner Orifi ce Size ---------------------------------------------------------------------------------------LP18 (not replaceable) Gas Ignition ---------------------------------------------------------------------------------------Electronic with Flame Sensing Electrode Tip-to-Burner Gap -------------------------------------------------------------------------------------1/8 to 3/16 inch Off-level operating limits Side-to-Side -------------------------------------------------------------------------------------------------- 3 Degrees-Maximum Front-to-Back ------------------------------------------------------------------------------------------------ 6 Degrees-Maximum www.norcold.com Polar Series N10LX, NA10LX... -
Page 7: Fig. 5 - Exploded Front View N10Lx, Na10Lx Models
Hinge Hole Cover Ice Cube Tray Strike Plate Freezer Wire Shelf Top Trim Piece User Interface Assembly (Control Assembly) Bottom Trim Piece User Interface Housing (Control Housing) Interior Light LED Assembly Full Wire Shelf Thermistor Cut Out Wire Shelf www.norcold.com SERVICE MANUAL... -
Page 8: Fig. 6 - Exploded Rear View N10Lx, Na10Lx Models
Fig. 6 - Exploded rear view N10LX, NA10LX Models Description Cooling Unit Fins AC Heater Gas Train Assembly Gas Train Support Bracket / Burner Door Assembly Drip Cup AC Power Cord Main Control Board Assembly (Power Board Assembly) www.norcold.com Polar Series N10LX, NA10LX... -
Page 9: General Information
If this air fl ow is blocked or decreased, the refrigerator may not cool correctly. Each NORCOLD model is certifi ed by AGA and CGA for correct ventilation. www.norcold.com SERVICE MANUAL... -
Page 10: Propane Gas Connections
■ To avoid possible propane gas leaks, always use two wrenches to tighten or loosen the propane gas supply line connections. ■ Leaking propane gas can ignite or explode and result in danger- ous personal injury or death. www.norcold.com Polar Series N10LX, NA10LX... -
Page 11: Main Control Board (Power Board) Fuses
The divider heater warms this area to prevent condensation from forming. Powering on the refrigerator automatically powers on the divider heater. Power to the heater is continuously supplied by the main control board (power board). www.norcold.com SERVICE MANUAL... -
Page 12: Preventative Maintenance
QUALIFIED SERVICE PERSON. ally. ■ With the switch in the OFF position, the blower will not run. NORCOLD CANNOT ACCEPT RESPONSIBILITY FOR REPAIRS, ADJUSTMENT, OR MAINTENANCE PERFORMED BY OTHER THAN A QUALIFIED DEALER OR SERVICE CENTER. If DC voltage is present through the wire harness to the switch... -
Page 13: Clean The Burner Tube
12. Connect the two (2) white wires to the gas valve of the gas train assembly. 13. Open the valve at the vehicle propane gas tank(s). Fig. 13 - Gas train connection 14. Examine all of the gas connections for leaks. Gas Supply Line Fitting Gas Train Assembly Timing Marks www.norcold.com SERVICE MANUAL... -
Page 14: Controls - N10Lx, Na10Lx
CONTROLS - N10LX, NA10LX MODE NORCOLD AUTO CODE Fig. 14 - N10LX, NA10LX user interface (control) Mode Button locations The mode button is manually operated and does not automatically Description change the operating mode of the refrigerator. Power ON / OFF Button Touch and hold the Mode button (See Fig. -
Page 15: Temperature Set Button
■ The refrigerator is connected to a known working DC power supply and/or battery supplying between 10.5 and 16.0 VDC ■ Propane gas is available to the refrigerator and is regulated between 10.5 and 11.5” WC (Inches of Water Column). www.norcold.com SERVICE MANUAL... -
Page 16: Fault Codes - N10Lx, Na10Lx Models
Flashing Temperature Set- second intervals any time the user interface ting” on page 24. (control) is “awake”. The refrigerator will not turn ON. Refer to “Blank Display” on page 25. Blank display. www.norcold.com Polar Series N10LX, NA10LX... -
Page 17: Troubleshooting - N10Lx, Na10Lx Models
This fault can occur in AUTO MODE or MANUAL GAS MODE Spark/sense wire installed Correct. Replace spark / sense correctly w/ ignitor wire if needed. continuity? Gas valve solenoid coil Replace gas train assembly. resistance 74-92 Ohms? Continued on following page. www.norcold.com SERVICE MANUAL... - Page 18 Continued from previous page. Wires to gas valve connected Correct. Replace wires if needed. w/continuity? Does main control Replace main control board assembly board (pwr board) (power board assembly). supply 12VDC to gas train? Replace Gas Train. www.norcold.com Polar Series N10LX, NA10LX...
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Page 19: Fault Code - "No" "Ac" With Audible Alarm
(power board). Check that fuse holder clips Adjust clips to ensure fuse contacts are are making full contact with Clips okay? firm in clips and making full contact. fuse. Replace main control board assembly NOR000714A (power board assembly). www.norcold.com SERVICE MANUAL... -
Page 20: Fault Code - "Ac" "He" With Audible Alarm
AC heater. connections Check AC heater resistance. Resistance Replace AC heater. See figure, below. 38-50 Ohms? Replace main control board assembly (power board assembly). www.norcold.com Polar Series N10LX, NA10LX... -
Page 21: Fault Code - "Ac" "Re" With Audible Alarm
Correct the DC input voltage to the refrigerator. Make sure the CODE CODE input voltage is 12.0 VDC. Alternately flashes “HI” and “dc” with an audible alarm. Possible Cause: The DC input voltage to the refrigerator is too high. www.norcold.com SERVICE MANUAL... -
Page 22: Fault Code - "No" "Dt" With Audible Alarm
Shorted to another wire. Continuity? Replace the refrigerator. Reconnect the wire harness at Main Control Board Asembly (Power Board) and the User Interface (Optical Display). NOR000796A Replace the Main Control Board Assembly (Power Board). www.norcold.com Polar Series N10LX, NA10LX... -
Page 23: Fault Code - "Sr" With Audible Alarm
A fl ame is sensed at the burner when there should be none present. Possible Cause: The gas valve is “mechanically” stuck open. Therefore, the Main Control Board (Power Board) senses a fl ame is pres- ent at the burner when there should be none www.norcold.com SERVICE MANUAL... -
Page 24: Fault Code - Flashing Temperature Setting
8.1 - 9.0 15.5 - 16.5 9.1 - 10.0 22.5 - 23.5 10.1 - 11.0 24.5 - 25.5 11.1 - 12.0 28.5 - 29.5 12.1 - 13.0 30.0 - 32.0 * Approximate values * Approximate values www.norcold.com Polar Series N10LX, NA10LX... -
Page 25: Blank Display
(Green) and P1-5 (White/Violet). Board (Power Board) (P1-12) and User Interface (Controls) (P1-1). Check connection/continuity of White/Violet wire between Main Control Board (Power Board) (P1-9) and User Interface (Controls) (P1-5). NOR000803A Call Customer Service. Replace User Interface Assembly. www.norcold.com SERVICE MANUAL... -
Page 26: Diagnostic Mode - N10Lx, Na10Lx Models
The example shows the fi n temperature to be 20°F. ■ If the thermistor is “open”, the second view will show “00”. ■ If the thermistor is “shorted”, the second view will show “99”. www.norcold.com Polar Series N10LX, NA10LX... -
Page 27: Screen 4: Stored Fault History
Flame is sensed. Thermister is sensed in range. Not used Not used. the individual LED segments. If a fault occurred, its assigned Not used. Not used. fault history LED segment will be on. Not used. www.norcold.com SERVICE MANUAL... -
Page 28: Screen 8. Power Board Outputs
If DC voltage at the power board is within normal range (10.5 to 16.0 VDC), LED segment 4 will be on. DC voltage higher than 16.0 volts. Not used. Not used. DC voltage normal. Not used. Not used. DC voltage lower than 8.0 volts. www.norcold.com Polar Series N10LX, NA10LX... -
Page 29: Cooling Unit Diagnostics - All Models
Correct ventilation to meet installation requirements Check heat input. Correct heat input device to Heat input device operating within meet specifications specification? Level refrigerator as outlined Refrigerator in Owner's Manual and operating leveled? specifications. NOR000797A Continued on following page. www.norcold.com SERVICE MANUAL... - Page 30 Temperatures given below are based on 90°F ambient Refrigerator temperature, correct ventilation, and operation at coldest temperatures 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. Contact Customer Service NOR000797A www.norcold.com Polar Series N10LX, NA10LX...
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Page 31: Wiring Schematic - N10Lx, Na10Lx Models
Hold Switch Water Fill Switch Water Valve Line Test Point (120 VAC) Mold Heater Test Point Thermostat Test Point Neutral Test Point Motor Test Point Valve Test Point 120VAC NOR000812A 120VCA Fig. 15 - Wiring diagram ICE MAKER* www.norcold.com SERVICE MANUAL... -
Page 32: Wiring Pictorial - N10Lx, Na10Lx Models
AC - 8A AC Heater Fuse F1 * DC - 30A DC Heater Fuse Optional - - - - - Optional Chassis Ground ICE MAKER * Ice Maker Thermal Fuse Water Valve ICE MAKER* Fig. 16 - Wiring pictorial www.norcold.com Polar Series N10LX, NA10LX... -
Page 33: Auxiliary Wiring Circuits
Fan Thermostat Fan Thermostat Condenser Condenser Auxiliary Wire Harness Auxiliary Wire Harness Cold Weather Heater P1-1 Auxiliary 12 VDC (ground) Cooling Unit P1-6 Auxiliary 12 VDC (positive) P1-1 Auxiliary 12 VDC (ground) P1-6 Auxiliary 12 VDC (positive) www.norcold.com SERVICE MANUAL... -
Page 34: Fan And Ice Maker
Fan / Bracket Assembly Auxiliary Wire Harness Fan Thermostat P1-1 Auxiliary 12 VDC (ground) Condenser P1-6 Auxiliary 12 VDC (positive) Cold Weather Heater Cooling Unit Auxiliary Wire Harness P1-1 Auxiliary 12 VDC (ground) P1-6 Auxiliary 12 VDC (positive) www.norcold.com Polar Series N10LX, NA10LX... -
Page 35: Ice Maker
Do not use any leak test solution that WARNING contains ammonia or chlorine. Ammonia ATTENTION and chlorine corrode brass and copper components. 11. Using a leak checking solution, examine the gas supply line connections for leaks. No leaks are allowed. www.norcold.com SERVICE MANUAL... -
Page 36: Conduct Leak Test
Apply solution between source of air pressure and piping system. Examine the propane gas supply system for leaks: make sure the propane gas supply line and all gas connections have no leaks. Do not use any liquid that contains ammonia www.norcold.com Polar Series N10LX, NA10LX...