Norcold 9182 Service Manual & Parts List

900 & 9100 series

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Operator's manual (15 pages)

Installation requirements (11 pages)

Parts list (10 pages)

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Page 1: Table Of Contents
900 & 9100 Series Service Manual & Parts List for Models 9182 9183 9162 9163 982 983 962 963 Contents Safety Information ....Step-by Step Trouble Shooting ..15 Introduction .
Page 2: Safety Information
Always replace a blown fuse with a fuse of same ampere rating. A circuit overload can result in an electrical fire if undersized wires or improperly sized fuses are used. To prevent a possible electrical fire, follow Norcold’s wire and fuse size specifications and any applicable state, local, or national codes.
Page 3: Introduction
To thoroughly understand the 900/9100 series refrigerator, review "Installation Requirements" and "Operator’s Guide". Purpose This manual provides service information for Norcold’s 900/9100 series refrigerators. This is a service guide for the experienced repair technician, and covers diagnostic procedures, trouble shooting, and repair procedures. It is recommended that repair technicians be knowledgeable with the function of an absorption refrigerator and have a basic understanding of propane and electrical systems.
Page 4: Specifications
Specifications MODEL 982 & 9182 983 & 9183 962 & 9162 963 & 9163 Storage Volume cu. ft. Cut-Out Dimensions 23 1/2 x 59 7/8 x 24 23 1/2 x 59 7/8 x24 23 1/2 x 52 7/8 x 24...
Page 5 MODEL 982 & 9182 983 & 9183 962 & 9162 963 & 9163 12 VDC required to operate and maintain the operating control. DC (heater) Operation 12 volts needed to operate the DC Electric (heater) and to operate the interior light and the moisture reduction (divider) heater.
Page 6: Operating Controls
Operating Controls A 12 volt DC supply is required to maintain refrigerator’s operating control functions. The refrigerator receives its DC power from the vehicle’s 12 volt system; either an auxiliary battery, a converter, or the engine battery. The 12 VDC system not only supplies power to the refrigerator, but to other DC components in the vehicle.
Page 7: Operating Sequence
Once the BOS mode is entered, the temperature sensor is ignored and the control displays a fault indicator. This mode provides adjustable cooling until the refrigerator is serviced. Norcold recommends the refrigerator owner seek service as soon as practical to restore normal operation.
Page 8: Alphanumeric Codes-900 Series
Description of Alphanumeric Codes for 900 Series (Diagnostic Indicators) The refrigerator’s operating control is equipped with Alphanumeric Codes which assist the service technician in trouble shooting and alert the refrigerator owner to a problem in any mode of operation. When a problem occurs within a given mode, the operating controls will revert to a stand-by mode in which an alarm will sound and a two digit alphanumeric code will be displayed in the center control window.
Page 9 A5-AC Input Voltage Too Low AUTO MODE-2 & 3 Way Models No code, alarm, flashing backlight or bell. Operating controls will switch to and operate in the next available energy source. MANUAL MODE-2 & 3-Way Models Alarm, flashing backlight and bell active. Controls will not switch to another energy source. Refrigerator will cease operation.
Page 10 C2-AC Heater Output Fault The control senses AC heater current when the AC heater should be "OFF". AUTO MODE-2 & 3 Way Models Alarm, flashing backlight and bell active. Controls will not select an alternate energy source. Controls will lock out all modes of operation until AC is disconnected from refrigerator or problem is corrected.
Page 11 C6-AC Heater Failed Open AC voltage supplied to heater; AC heater not drawing current. AUTO MODE-2 & 3 Way Models No alarm, flashing backlight, or bell. Operating controls will switch to and operate in the next available energy source. MANUAL MODE-2 & 3 Way Models Alarm, flashing backlight, and bell will be active.
Page 12: Flashing Leds-9100 Series- (Diagnostic Indicators)
Description of 9100 Series Flashing LED’s (Diagnostic Indicators) The LEDs on the front display panel flash if a fault occurs within the operating controls. The flashing LEDs assist the service technician in trouble shooting and alert the refrigerator owner to a problem in any mode of operation. When a problem occurs within a given mode, the operating controls revert to a stand-by mode in which an LED or series of LEDs begin flashing.
Page 13 All LED’s Flashing-3 Way Models Only (LED’s will flash, pause, flash, pause, etc.) DC heater failed open. DC voltage is being supplied to the heater but the heater is not drawing current (no cooling). Flashing Temperature Setting LED-All Models (LED will flash, pause, flash, pause, etc.) Back-Up Operating System.
Page 14: Diagnostics Fault Indicators-900 & 9100 Series
900 & 9100 Series Diagnostic Fault Indicators & Corrective Actions The following table is designed to show the commonalty between the fault indicators of the 900 and the 9100 Series. The corrective actions on the following pages are designed 900 Series 9100 Series Meanings Corrective Action...
Page 15 900 Series 9100 Series Meanings Corrective Action Code All LED Flashing 3-Way Models Only - DC Heater Failed (flash, pause,flash, See Section 12 on page 18 (voltage but no current) pause, etc.) Current TEMP SET LED Flashing Back-Up Operating System See Section 13 on Page 18 (flash, pause, flash, pause, etc.)
Page 16: Step-By Step Trouble Shooting
900 and 9100 Series Step-by-Step Trouble Shooting by Diagnostic Fault Indicators This section is intended to serve as a check list to aid the repair technician in solving a problem. Look at the fault indicator (Diagnostic Fault Indicators and Corrective Actions on page 13) and its meaning, then follow the guide to correct the problem. Wire Harness 3 Amp control Section 1 - No Display on Display Panel...
Page 17 Section 2 - LP Gas Ignition Failure - Initial Refrigerator Start-Up & LP Gas Re-Ignition Failure - During Normal Gas Operation Corrective Action 1. Has LP gas tank been filled recently? Purge gas line to refrigerator. 2. Is LP gas tank valve on? Turn valve on. 3.
Page 18 Section 5 - AC Input Voltage too Low (See Internal Control Information) Corrective Actions Check input AC supply voltage to refrigerator. Correct input AC voltage (108 VAC 132 VAC max.). Section 6 - AC Input Voltage too High (See Internal Control Information) Corrective Actions Check input AC supply voltage to refrigerator.
Page 19 Section 12 - 3 Way Models Only - DC Heater Failed Open Corrective Action 1. Measure the resistance through the DC heater. An open heater reads infinity and requires replacement. 2. Check all wire connections. If wire connections are secure and DC heater is not found open, replace power board. Section 13 - Back-Up Operating System If the thermistor becomes inoperable, the power board will revert to the Back-Up Operating System.
Page 20: Internal Control Information - 900 Series
Section 18 - Internal Control Failure Corrective Action Replace power board. Internal Control Information - 900 and 9100 Series Internal Control Information provides additional information to aid in trouble shooting. To access the Internal Control Information mode (900 and 9100 series), press the TEMP SET and the MODE buttons simultaneously for 10 seconds. While in the Internal Control Information mode, the refrigerator continues to operate in the mode selected prior to entering the information mode.
Page 21 Screen No. 2 - Output Images On this screen, the refrigerator control illuminates images corresponding to output it is energizing. These images are intended to aid in trouble shooting when the images are compared against the actual control output voltages. Figure 6 A.
Page 22 Screen No. 3 On this screen, the refrigerator control illuminates an image which is a real time indication of control activity. Figure 7 A. Identifies information screen. B. All modes of operation. When this bar is illuminated, it signifies that the controls are calling for cooling. C.
Page 23 Screen No.4 - Fin Temperature Sensed by the Thermistor The Thermistor is mounted on the 11th (from the right) cooling fin and monitors the refrigerator cabinet temperature Figure 8 A. Identifies information screen B. Cooling Fin Temperature (° F). The following procedure verifies the thermistor is functioning: 1.
Page 24 Screen No. 6 AC Heater Current This screen displays AC current measured by the control (decimal point implied). Figure 10 A. Identifies information screen. B. The refrigerator control displays AC current measured by the control. Figure 10 indicates 2.9 amps. C.
Page 25: Internal Control Information-9100 Series
Screen No.8 - 3-Way Models Only DC Heater Current This screen displays the measured DC heater current (decimal point is implied). Figure 12 A. Identifies information screen. B. The control displays the current through the DC heater measured by the control over a range of 9 to 21 amperes. (Figure 12 indicates 16 amps).
Page 26 On this screen, the refrigerator control illuminates LED’s which are real time indication of control activ- ity. A - Identifies information screen. 1 - Not Applicable 2 - Not Applicable 3 - Not Applicable 4 - ALL modes of operation, LED on signifies that the control temperature sensing circuit is not satisfied and is calling for cooling.
Page 27 Screen No. 4 - AC Electric Input Volt- This screen displays AC input voltage measured by control. A - Identifies information screen. B -The control will display the AC input volt- age to refrigerator. Each LED is assigned a number. To determine AC input voltage, add numbers above illuminated LED for voltage.
Page 28 Screen No. 6 - DC Input Voltage This screen displays the DC input voltage as meas- ured by the control. A - Identifies Information screen. B - The control displays the DC input voltage to refrigerator. Each LED is assigned a number. To determine DC input voltage, add numbers above illu- minated LED for voltage.
Page 29 Screen No. 8 This screen verifies that the control is able to turn the LED’s off. If any LED remains on, replace power board. Screen No. 9 This screen verifies that all LEDs are functioning. If any LED fails to light, replace either the display panel or the power board.
Page 30: Diagnosing Cooling Problems
Make sure refrigerator is installed in accordance with Norcold’s installation requirements. Refer to Figure 22, the statements below, and "Installation Requirements" manual (provided with each refrig- erator).
Page 31: Refrigerant Leaks
Inputs: Make certain that: • The AC and DC voltages and the LP Gas supply pressure are within the required specifications. Refer to "Specification" charts on pages 3 and 4. Checking Door Seals The door gaskets must seal completely around the entire length of Pull paper away from the door.
Page 32: Component Check-Out Procedures
Component Check-Out Procedure Figure 25 AC Heater and DC Heater-Figure 25 Measure resistance through the AC or DC heater using an ohmmeter. The resistance should read: 1. AC Heater - 40.3 ohms +/- 5%. 2. DC Heater - .87 ohms +/- 5%. Measure the resistance between each heater lead and the metal case of the heater.
Page 33 Sense/Ignition Electrode Alignment Figure 28 The alignment of the electrode is to be between 1/8"-3/16" from the top of the burner. Burner Flame Appearance-Figure 29 A visual check of the burner flame should be made regularly. The flame should be sharp blue with a stable burning appearance. If there is a constant yellow component observed or if the flame Figure 28 appears erratic or unstable, the burner and burner orifice must be...
Page 34: Procedure For Cleaning Cooling System Flue
R.V., and the burner, burner orifice, and the cooling system’s flue tube must be cleaned at least once a year and after all prolonged (seasonal) shut-down periods. Follow Norcold’s Ventilation and Installation recommendations explicitly and refer to the following cleaning procedures.
Page 35: Fuse Replacement Procedure
#8 of DC module. IMPORTANT 4. Yellow wire of DC heater connects to • Replace blown fuse with fuse specified by Norcold. terminal #6 of DC module. • DC Control Circuit - 3 amp (purple) blade-type automotive 8.

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983 962 963 9183 9163 9162 ... Show all

Norcold 9182 Service Manual & Parts List

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