Norcold 9162 Service Manual & Parts List Download Page 32

Component Check-Out Procedure

Figure 25

Figure 26

Figure 27

AC Heater and DC Heater-Figure 25

A.

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%.

B. 

Measure the resistance between each heater lead and the
metal case of the heater. If any reading is observed, replace
heater.

Gas Valve-Figure 26

1. 

During a trial for ignition, measure for 12 volt DC at the
gas valve. If 12 volt DC is not present, check:

A. Connection of the gas valve wires at the power board.
Secure if loose.

B. Continuity of the gas valve wires. Replace gas valve
wires if no continuity.

C. If 12 volt DC is not present at the gas valve terminals
replace power board.

D. If 12 volt DC is present, replace gas valve. 

Sense/Ignition Electrode Wire-Figure 27

1. 

Turn the refrigerator off.

2. 

Disconnect the sense/ignition electrode wire from the
power board.

3. 

Measure continuity of the sense/ignition electrode wire. If
no continuity, replace sense/ignition electrode wire.

4. 

Check the sense/ignition electrode for a short to ground.
Replace the sense/ignition wire if a reading is observed.

31

Summary of Contents for 9162

Page 1: ...s 900 Series 7 Flashing LEDs 9100 Series Diagnostic Indicators 11 Diagnostics Fault Indicators 900 9100 Series 13 Step by Step Trouble Shooting 15 Internal Control Information 900 Series 19 Internal C...

Page 2: ...ion that may result in property damage personal injury or death Use extreme care when working with or near a propane gas system Do not smoke or create sparks Do not use an open flame to check supply p...

Page 3: ...autions and warnings before servicing refrigerator It is critical that the refrigerator installation is in accordance with Norcold s recommended procedures which are in compliance with standards for R...

Page 4: ...4 17 32 x 21 19 32 38 5 8 x 21 19 32 14 17 32 x 21 19 32 31 5 8 x 21 19 32 14 17 32 x 21 19 32 31 5 8 x 21 19 32 Supply Voltage Requirements DC AC 15 4 Max 10 5 Min 132 Max 108 Min 15 4 Max 11 5 Min 1...

Page 5: ...Control Voltage 3 Amp Blade Type AC Circuit 5 Amp 3AG Glass DC Control Voltage 3 Amp Blade Type AC Circuit 5 Amp 3AG Glass DC Electric Heater 30 Amp Blade Type DC Supply Wire Requirements Min Wire Siz...

Page 6: ...erator will not switch to new operating mode until the MODE button is released D TEMP SET Button The TEMP SET thermostat button controls refrigerator and freezer temperature Press and hold TEMP SET bu...

Page 7: ...ols are turned OFF and then ON again If gas does not ignite after several attempts refer to Diagnostic and Trouble Shooting sections for corrective actions A different mode of operation may be selecte...

Page 8: ...ll will be active Controls will not switch to another energy source Refrigerator will cease operation MANUAL MODE 3 Way Model Alarm flashing backlight and bell will be active Controls will not switch...

Page 9: ...AUTO MODE 2 3 Way Models Alarm flashing backlight and bell active Operating controls will not switch to next energy source Refrigerator will cease operation MANUAL MODE 2 3 Way Models Alarm flashing...

Page 10: ...n be manually switched and operated in either the AC electric or LP Gas mode C4 3 Way Models Only DC Heater Failed Open DC voltage is being supplied to the heater but the heater is not drawing current...

Page 11: ...energy source is manually selected C8 AC Heater Failed for Current Out of Tolerance AUTO MODE 2 3 Way Models No alarm flashing backlight or bell will be active Operating controls will not switch to or...

Page 12: ...ashing AC LED All Models LED will flash pause flash pause etc Fault external to refrigerator controls AC mode selected AC power not available Flashing AC LED All Models LED will flash flash pause flas...

Page 13: ...enters this mode the thermistor is ignored and the refrigerator will interpret the thermostat setting as a duty cycle command All LED s Flashing All Models LED s will flash pause flash pause etc AC h...

Page 14: ...ontrols AC mode selected AC power not available See Section 4 on Page 16 A5 Flashing AC LED flash flash pause flash flash pause etc Fault external to refrigerator controls AC input voltage too low See...

Page 15: ...ll LED Flashing flash pause flash pause etc AC Heater Failed Open See Section 14 on Page 18 C7 All LED Flashing flash pause flash pause etc Flame Circuit Failure See Section 15 on Page 18 C8 Not appli...

Page 16: ...If the 3 amp fuse continues to blow disconnect the light wires from the light bracket Start refrigerator If fuse does not blow replace light bracket If fuse blows replace con trol board Caution A circ...

Page 17: ...n 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 Is refrigerator s manual shut of...

Page 18: ...e connections if loose 3 Check vehicle s battery charging equipment Correct charging equipment Section 8 DC Input Voltage too High See Internal Control Information Corrective Actions 1 Check input DC...

Page 19: ...ense electrode wire for continuity Replace if no continuity found 3 Check the sense ignition wire for short to ground Any reading replace sense ignition wire 4 Check ignition wire connection at power...

Page 20: ...display panel The 9100 series internal information is communicated through the 9 temperature LED s The Internal Control Information mode can be exited by pressing the MODE and TEMP SET buttons simult...

Page 21: ...uction divider heater D When operating in the LP GAS mode when this bar is illuminated it signifies the power board is providing ignition spark to the burner E When operating in the AC Electric mode w...

Page 22: ...d this bar signifies that the fresh food compartment door has been opened for more than 2 minutes E All modes of operation When illuminated this bar signifies that the control s temperature sensing ci...

Page 23: ...displayed on Screen No 4 should rise 3 If the temperature does not fall and rise when performing steps 1 and 2 replace the thermistor Screen No 5 AC Electric Input Voltage This screen displays AC inp...

Page 24: ...2 9 Amps The current will be 10 of the control s display This screen displays the measured DC decimal point is implied input voltage to the control A Identifies information screen B The refrigerator c...

Page 25: ...icable 2 Not Applicable 3 All modes of operation LED on signifies the fresh food compartment door is closed and the interior light is off 4 LP GAS mode LED on signifies a burner flame present at the b...

Page 26: ...rrent operating mode is BAT TERY DC electric Screen No 3 Fin Temperature Sensed by Thermistor The thermistor is mounted on the 11th cooling fin from the right and monitors the refrigerator cabinet tem...

Page 27: ...uld be 10 VAC of control display 2 Measure output voltage of the control board to AC heater Voltage should equal input volt age measured in Step 1 Screen No 5 AC Heater Current This screen displays AC...

Page 28: ...To verify Measure the input DC voltage at control board The voltage will be 1 0 VDC of the control s display Screen No 7 DC Heater Current 3 Way Models Only This screen displays DC heater current mea...

Page 29: ...he 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 See...

Page 30: ...cooling system specification of 3 degrees off level side to side and 6 degrees off level front to back can cause irreparable damage to cooling system and can create a risk for personal injury or prope...

Page 31: ...nt solution can cause severe burns to the eyes or skin and can ignite and burn with intense flame Sodium chromate contains chromium Certain chromium compounds can cause cancer by inhalation Do not cut...

Page 32: ...C is not present check A Connection of the gas valve wires at the power board Secure if loose B Continuity of the gas valve wires Replace gas valve wires if no continuity C If 12 volt DC is not presen...

Page 33: ...the flare nut and remove the burner tube from the orifice To prevent damage to the gas line use two wrenches when loosening the flare nut 5 Carefully remove the gas tube from the burner 6 Remove the o...

Page 34: ...d 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 re...

Page 35: ...own in Figure 32 1 Blue wire from power board connects to terminal 7 of DC module 2 Red wire from power board connects to terminal 9 of DC module 3 Black wire connected to refrigerator chas sis connec...

Page 36: ...35...

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