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Norcold 442 Repair Manual

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Table of Contents

B101

Table of Contents

Page
3-21 Wiring Pictorials
3-23 Wiring Diagrams
3-E1 Information on Earlier Versions
3-W1 Wiring Pictorials for Earlier Versions
3-W3 Wiring Diagrams for Earlier Versions
Norcold Repair Guide
Models 442, 443, 452, 453, 462, 463, 482, 483
3-3 Description of Operation
3-4 Location of Control and Components
3-6 High Humidity and Interior Lamp Switch
3-12 Refrigerator Does Not Indicate that a Flame has been Established
3-13 Burner Flame Will Not Light or Stay Lit
3-1
Section 3

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Summary of Contents for Norcold 442

  • Page 1: Table Of Contents

    B101 Norcold Repair Guide Section 3 Models 442, 443, 452, 453, 462, 463, 482, 483 Table of Contents Page 3-2 General Information and Specification 3-3 Information About Electrical Connections 3-3 Description of Operation 3-4 Location of Control and Components 3-5 Lighting and Operating Instructions...

  • Page 2: General Information And Specification

    12 Volts DC RATINGS 1050 Btu/Hr Input LP Gas Mode: 11" W.C. Gas Supply CURRENT DRAWS - 442, 443, 452, 453 LP14 Orifice 12 Volts DC control voltage Relighter - 30 milliamps AC Mode: AC Heating Element - 1.5 amps at 110 Volts AC 110 Volts AC, 200 Watts 1.7 amps at 120 Volts AC...

  • Page 3: Information About Electrical Connections

    OPERATION connected into a recognized three Models 442-443-452-453-462-463-482-483 prong attachment receptacle. The free length of cord is 24", so it is All use a single combination control to determine and regulate the mode of recommended that the receptacle operation (LP GAS or Electric).
  • Page 4 A008 Component Location and Identification (Single Door Models) A. Illuminated Ignition Switch B. Flame On Indicator Lamp C. Thermostat Control Knob D. Combination Control Knob 1. Gas On/Electric Interlock 2. Push-In Safety Valve E. AC/DC Mode Selector Switch (3-Way models only) F.

  • Page 5: Lighting And Operating Instructions

    B101 Lighting and Operating Instructions Lighting Instructions: Gas Operation 1. Make certain that 12 Volts DC is available to the refrigerator. 2. Turn on gas supply at the tank. 3. Set thermostat control to the maximum cold setting. 4. Set ignitor switch to "ON" posi- tion.
  • Page 6 B101 High Humidity - Storage Switch Models 462, 463, 482, 483 Only Turning this switch to HIGH HU- MIDITY will keep the surface be- tween the door openings dry during high humidity conditions. This posi- tion will also allow the interior light to activate when the lower door is opened.

  • Page 7: Parts Function

    B101 Parts Function Combination Control The 400 Series refrigerators util- ize a single combination control to determine and regulate the mode Capillary Tube of operation (gas or electric). The control is operated by two knobs. The first is to select the operating Control Terminals mode (gas or electric), and the second is to control the thermostat...
  • Page 8 Relighter Sends sparks to the burner to light the flame. Note: This Norcold is equipped with an electronic ignition relighter. It auto- matically relights the flame should it blow out. The Ignitor Switch, lo- cated on the control panel, activates this relighter.
  • Page 9 B101 Burner Applies the correct amount of heat to the cooling unit, when it is supplied the correct amount of air and LP Gas. Figure 3.12B Burner AC Heating Element Applies the correct amount of heat to the cooling unit, when it is supplied with the correct AC volt- age.

  • Page 10: Troubleshooting Procedures

    WARNING NEVER OVERFUSE A CIRCUIT. REPLACE A BLOWN FUSE WITH EXACT REPLACEMENT INDICATED BY NORCOLD. OVERFUSING A CIRCUIT CAN CAUSE A FIRE. Figure 3.17 Fuse Continuity Check 3. If preceding checks did not re-...
  • Page 11 B101 4. To check for loose wire con- nections, set your Volt-Ohm meter to + 25 Volt scale. Check for presence of 12 volts at the Ignitor rocker switch from the center wire of the switch to DC negative, as shown in Figure 3.19.
  • Page 12 B101 Refrigerator Indicates No Flame Established If the Flame Indicator is not illu- minated, yet the Ignitor switch is ON with 12 volts available to unit and flame at burner, then check the following: 1. Keep in mind that the Flame Indicator will not illuminate unless a flame has been es- tablished.
  • Page 13 B101 Flame will not stay lit (Lights and Then Goes Out) 1. Remove the control knob and depress the shaft with your finger until it bottoms out as shown in Figure 3.25. If refrigerator ig- nites and stays lit realign the combination control and rein- stall knob.
  • Page 14 Model High Fire Low Fire ambient temperature, refrigera- 442, 443 10.5" To 10.9" W.C. 1.2" To 2.4" W.C. tor load, and thermostat setting. 452, 453 10.5" To 10.9" W.C. 1.2" To 2.4" W.C. 8. Access to the combination con- 462, 463 10.5"...

  • Page 15: Refrigerator Overfreezing

    B101 Refrigerator Overfreezing 1. With gas supply off, hook up your U-tube or gas manometer as shown. Capillary Tube Im- 2. A part which can cause this mersed In Ice Water symptom is the combination control. 3. Remove the capillary tube from the fins.
  • Page 16 B101 WARNING NEVER OVERFUSE A CIRCUIT. REPLACE BLOWN FUSE WITH EXACT REPLACEMENT INDICATED BY NORCOLD. OVERFUSING OF A CIRCUIT CAN RESULT IN A FIRE. Note: Before gaining access to the combination control, check the AC Heater element as described in Steps 14-18 on pages 3-17 &...
  • Page 17 B101 8. Check for 120 Volts at each terminal to ground of the com- bination control as illustrated in Figures 3.37 and 3.38. Nor- mal readings should show 120 Volts on both terminals. 9. If there is 0 Volts on both ter- minals, check wiring connec- tions.

  • Page 18: Refrigerator Will Not Operate Or Cool On D/C

    WARNING NEVER OVERFUSE A CIRCUIT. RE- PLACE BLOWN FUSE WITH EXACT REPLACEMENT INDICATED NORCOLD. OVERFUSING A CIR- CUIT CAN RESULT IN A FIRE. Note: Before gaining access to the combination control, check the DC Heater element as described in Figure 3.43 Access to Controls Steps 16-19 on page 3-20.
  • Page 19 B101 5. If preceding checks did not re- veal the cause of malfunction, then access to the control panel is required as shown in Figure 3.43. The first step in gaining access is to remove Rear View of AC- the two control knobs (A), then ELEC STDBY-DC Switch remove the (6) Phillips head screws (B) as shown.
  • Page 20 B101 a 2-Way, skip to Step 13. 11. Check for 12 Volts at Points 1 and 2 of switch and ground as shown in Figure 3.44 (AC- ELEC STDBY-DC switch is now set at DC. 12. There should be 12 Volts at both Points 1 and 2.
  • Page 21 B101 3-21...
  • Page 22 B101 3-22...
  • Page 23 B101 3-23...
  • Page 24 B101 3-24...
  • Page 25 B101 This Page Contains Information on Earlier Versions On earlier versions of 3-Way models, the control panels were built with a 2-Position AC-DC switch. Later models have a 3-Posi- tion switch labeled "AC-ELECTIC STANDBY-DC". See Figure 1 and 2. 5-Amp Fuse Blows 2-Position Switch Intermittently Part # 61611322...
  • Page 26 B101 This Page Contains Information on Earlier Versions (continued) 61694822 AC - DC MODE SWITCH OPERATION 3-Way Model 3-Way Model 3-Way Model Push on right Push on left Center position for side for 12 Volt side for 120 Electric Standby DC mode Volt AC mode...
  • Page 27 This Page Contains Wiring Pictorials for Earlier Versions...
  • Page 28 This Page Contains Wiring Pictorials for Earlier Versions...
  • Page 29 This Page Contains Wiring Diagrams for Earlier Versions...
  • Page 30 This Page Contains Wiring Diagrams for Earlier Versions...

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