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Norcold 1200 Series Service Manual

Gas/electric
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Service Manual
Gas/Electric Refrigerators
MODELS
1200XX
120X-IMXX
WARNING
DO 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 deck.
Publication No. 618968C (02-27-07)
© 2004 NORCOLD, INc. All rights reserved.

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Summary of Contents for Norcold 1200 Series

  • Page 1 DO 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 deck.
  • Page 2 This page intentionally left blank. 1200XX/120X-IMXX Models Refrigerator Service Manual...

  • Page 3: Table Of Contents

    Table of Contents lp.g yStemI Pressure Requirements ........24 Components ............24 ..............1 ntroductIon Testing for LP Gas Leaks ........25 About this Manual ..........1 Gas Valve ............25 Model Identification ..........1 Solenoid Gas Valve Connections ......25 Information Label ...........
  • Page 4 Installation–Power Board ........40 .-.u .S/n.832171... 49 IagnoStIc nItS Igher Diagnostic Mode ............. 49 ............... 41 ontrolS Accessing the Diagnostic Mode ......49 Optical Control Display Assembly ........ 41 Changing Screens ..........49 AUTO AC Operation ..........41 Exiting the Diagnostic Mode ........

  • Page 5: Introduction

    This service manual provides maintenance, diagnostic, NORCOLD 1200XX/120X-IMXX gas/electric absorption ® and repair information for NORCOLD, INC. model refrigerators are certified under the latest edition of ANSI 1200XX/120X-IMXX gas absorption refrigerators. It Z21.19B standards for installation in mobile homes or is a reference tool designed for technicians who are recreational vehicles.
  • Page 6 NORCOLD. INC. TESTED FOR LP GAS: EQUIPPED FOR PROPANE / Teste 1 COLD- pourle GPL, equipped por le propan SET TEMP MODE ON/OFF 9 COLDEST SIDNEY, OHIO SUPPLY BURNER 11 "WC 10.5 "WC alimentati bruleur SERIAL # / N de serie...

  • Page 7: Safety Notice

    SAFETy AWARENESS Safety Notice appears on all safety labels posted on the refrigerator and safety awareness notices presented throughout this It is not possible to anticipate all of the conceivable manual. ways or conditions under which the refrigerator may be serviced or to provide cautions as to all of the possible hazards that may result.

  • Page 8: Specifications

    SPECIFICATIONS 1200XX/120X-IMXX Models Storage volume Freezer ------------------------------------------------------------------------------------------------------------------------ 1.3 ft. each Fresh food compartment --------------------------------------------------------------------------------------------------------- 8.0 ft. Rough opening dimensions (H x W x D) 1200XX/120X-IMXX ----------------------------------------------------------------------------------- 63 in. x 32 in. x 24 1 /4 11 /16 Decorative panels dimensions Thickness ---------------------------------------------------------------------------------------------------------------------------- 3 /16 Freezer door (H x W) ------------------------------------------------------------------------- 17...

  • Page 9: Troubleshooting - Quick Reference Guide

    TROUBLESHOOTING – QUICk REFERENCE GUIDE Problem Possible Cause Checks/Reference No 12 VDC power to refrigerator. See page 9. The refrigerator does not turn ON. Faulty/loose 12 Vdc connections. Check 12 volt DC connections. F1 fuse in power board open. Check F1 fuse. No AC power to refrigerator.

  • Page 10: S / N .832170.&. Lower

    DISPLAyED FAULT CODES: S/N 832170 & LOWER Code Probable Cause Reference LEDs off Refrigerator turned off. Cold Coldest TEMP No 12 VDC to power board. See page 9. Blank MODE Screen F1 fuse open. AUTO LP GAS Mode LEDs off "no"...
  • Page 11 Code Probable Cause Reference "Sr" and "CL" Flashing Cold Coldest AC relay stuck closed. See page 12. TEMP MODE AUTO LP GAS "AC" LED Flashing "LO" Flashing Cold Coldest AC voltage low. See page 14. TEMP MODE AUTO LP GAS "AC"...

  • Page 12: S / N .832171.&.H Igher

    DISPLAyED FAULT CODES: S/N 832171 & HIGHER Code Probable Cause Reference Refrigerator turned off. Blank Display No 12 Vdc to refrigerator. See page 9. Screen F1 fuse open. The burner failed to ignite or reignite. See page 10. Flame sense circuit failure. See page 11.

  • Page 13: Blank Display - Refrigerator Does Not Turn On

    TROUBLESHOOTING FLOWCHARTS Blank Display – Refrigerator does not turn on Before beginning this procedure make sure: The RV DC power system is supplying 10.5 to 15.4 volts to the refrigerator. No other RV appliances or lighting circuits are connected to the refrigerator DC circuit. 12 VDC input to the power board is wired according to the 1200XX/120X-IMXX Installation Manual.

  • Page 14: No" "Lp" / "No" "Fl" Fault Code

    "no" "LP" / "no" "FL" Fault Code – Burner failed to ignite/re-ignite Before beginning this procedure make sure: RV LP gas tank valve is open. Refrigerator solenoid gas valve manual shut-off is open. LP gas pressure at the solenoid gas valve pressure tap is 10.5 to 11.5 in. w.c. Fault indicator displayed: Flashing "no"...

  • Page 15: Dc" "Lo" Fault Code

    "Sr" "FS"/"Sr" Fault Code – Flame sense circuit failure Fault indicator displayed: "Sr" and "FS" Flashing "Sr" Flashing Coldest Cold TEMP MODE 1 COLD - 9 COLDEST TEMP MODE ON / OFF AUTO LP GAS "AC" LED Flashing Flame sense circuit failure. Replace power board.

  • Page 16: Sr" "Cl"/"Ac" "Re" Fault Code

    "dc" "HI" Fault Code – DC voltage input to power board is higher than 15.4 volts Before beginning this procedure: Make sure RV DC voltage to refrigerator is 10.5 to 15.4 volts. Determine if the “dc” “HI” fault code displays when the converter is the source of DC power. Fault indicator displayed: "dc"...

  • Page 17: No" "Ac" Fault Code

    "no" "AC" Fault Code – No AC power available Before beginning this procedure make sure: No other problems exist with the RV AC power supply. No other appliances or lighting circuits are connected to the refrigerator AC circuit. Extension cords are not being used to supply AC power to the refrigerator. Fault indicator displayed: "no"...
  • Page 18 "AC" "LO" Fault Code – AC voltage low Before beginning this procedure: Determine if a certain AC power source sets the "AC LO" fault code (generator, shore power, inverter). Make sure no other appliance or lighting circuit is connected to the refrigerator AC circuit. Make sure extension cords are not being used to supply AC power to the refrigerator.

  • Page 19: Ac" "He" Fault Code

    "AC" "HE" Fault Code – AC heaters failed open Before beginning this procedure make sure: RV AC voltage to the refrigerator is 108 to 132 volts. No other appliance or lighting circuit is connected to the refrigerator AC circuit. Fault indicator displayed: "OP and Sr"...

  • Page 20: Dc" "Hi" Fault Code

    "dr" Fault Code – Door open for more than 2 minutes Before beginning this procedure make sure: Light/thermistor connector and wire harness connector are fully engaged and locked. Fault indicator displayed: Cold Coldest TEMP MODE 1 COLD - 9 COLDEST TEMP MODE ON / OFF...

  • Page 21: Thermistor Open

    Thermistor Open – Controls in Backup Operating System mode Before beginning this procedure: Make sure lamp/thermistor assembly is connected to the wire harness. Fault indicator displayed: Check thermistor wires at connector and thermistor for dirty/broken connections. Wires and Clean/repair terminals or connector as connector required.

  • Page 22: Ac" "Lo" Fault Code

    "no" "co" Fault Code* – No cooling detected by the controls - S/N 832171 and higher Fault indicator displayed: 1 COLD - 9 COLDEST TEMP MODE ON / OFF "no" and "co" Flashing Check for cooling at fin assembly. 1. Check for ventilation obstructions and leveled operation.

  • Page 23: Entilation

    VENTILATION Roof Exhaust Venting The space between the air intake vent and the rear NOTE of the refrigerator must be kept clear at all times. Any obstruction in this area may cause serious ventilation The general guidelines for intake vents and roof problems.

  • Page 24: Baffles

    Roof exhaust vent Top baffle required when the clearance from the underside of the roof to the top of the refrigerator exceeds 1/4 inch. Condenser Side wall baffles required when the clearance between the enclosure side walls and refrigerator exceeds 1/8 inch Fans (2) Absorber coils Intake vent...

  • Page 25: Double Sidewall Venting

    Because of increased installation of refrigerators in exhaust vent. See Figure 12, page 22, and Figure 13, RV slide outs, NORCOLD has developed venting page 23 for details. guidelines for double sidewall vent applications. This ensures NORCOLD refrigerators meet the ANSI Z21.19...

  • Page 26: Power Board Resetting Procedurei

    Aluminum or galvanized steel sheet full width baffle New location of baffle .25 in. below lower corner to 1.50 in. above lower corner. For optimum performance, locate baffle .25 in below condenser. Aluminum or galvanized steel sheet full width baffle Old location 62 in.
  • Page 27 Aluminum or galvanized steel sheet full width baffle. New location of solid baffle .25 in. below lower corner to 1.50 in. above lower corner. For optimum performance, locate baffle .25 in below condenser. Aluminum, wood, or galvanized steel shee t full width baffle.

  • Page 28: Pressure Requirements

    LP GAS SySTEM Canister Gas valve Baffle Flue Burner tube Power connections Solenoid Electrode Burner Test port (1/8" NPT plug) 0.190 Bracket Burner box Jeweled orifice Manual shutoff (shown open) Figure 14. LP gas system, units with S/N 882583 and lower Canister Flue Power connections...

  • Page 29: As Ystemi

    Replacing Old Style Gas Valve few minutes for bubbles to appear if the connection is leaking. Hidden joints should be examined thoroughly Use the NORCOLD gas valve conversion kit part using an inspection mirror. number 62133 to replace the old style gas valve. The...

  • Page 30: Burner Tube

    Bracket Solenoid Power connections Inlet port Outlet port OPEN Test port Manual shutoff valve (in "OFF" position) Figure 19. New gas valve components Figure 18. New gas valve (SN>=657908) Burner Tube 8-slot burner Retaining screw The burner tube is 1/4 inch OD aluminum tubing with an anti-vibration loop.

  • Page 31: Flue

    Flue The flue comes equipped with a removable baffle and a metal flue cap. The flue cap is shown in Figure 25 insert a. The location of the flue baffle is shown in Figure 25, Flue insert b. The flue and the condition of the baffle should be Flue Baffle tube...

  • Page 32: Burner Cleaning Procedure

    Burner Cleaning Procedure WARNING WARNING Do not insert any type of cleaning tool or wire Burn hazard! Allow the burner box and burner into the orifice. Do not drill or ream the orifice components to cool before attempting to opening to clean it. Insertion of any type of service the burner assembly or components.

  • Page 33: Dc Voltage Requirements And Polarity

    ELECTRICAL REQUIREMENTS AND COMPONENTS DC Voltage Requirements and Polarity Lamp/Thermistor Assembly The operating controls require 10.5 to 15.4 Vdc to The operation of the fresh food compartment 12 volt operate. The positive wire lead (+) connects to power DC lamp is controlled by two switches mounted on board terminal 12VDC;...

  • Page 34: Ac Power Requirements

    AC Power Requirements WARNING When replacing the AC heater make sure the stop bead rests fully against heater tube rim. Figure 28 shows the Electric shock hazard! The refrigerator receives location of the stop bead. power from more than one source. Unplug the AC cord from the RV AC receptacle before servicing electrical or electronic components.

  • Page 35: Ice Maker Ac Power Cord - Earlier Models

    12 volt DC Fans Ice Maker AC Power Cord - Earlier Models The two ventilation fans are located on top of the On earlier models, the ice maker power cord and the absorber coils on the back of the refrigerator. They are AC power cord are connected as one unit.

This manual is also suitable for:

120-im series

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