Norcold N510, N500, N400 User Manual

Page 1

Owner ’s Manual

For model N400 - a 4.5 cu. ft., 2-way or 3-way, refrigerator . For model N500 - a 5.5 cu. ft., 2-way or 3-way, refrigerator . For model N510 - a 5.5 cu. ft., 2-way or 3-way, refrigerator .

WARNING: Improper installation, adjustment, alteration, service or mainte-

nance can cause injury or property damage. Refer to this manual. For assistance or additional information, contact a qualified installer, service agency, or the gas supplier.

FOR YOUR SAFETY

Do not store or use gasoline or other flammable vapors and liquid in the vicinity of this or any other appliance.

FOR YOUR SAFETY

If you smell gas:

1. Open windows.

2. Don’t touch electrical switches.

3. Extinguish any open flame.

4. Immediately call your gas supplier.

NORCOLD, Inc. P .O. Box 4248 Sidney, OH 45365-4248

English

French

Norcold Customer Support Dept.

Telephone: 800-543-1219

Fax: 937-497-3183

Web Site: www.norcold.com

Part No. 622266B (11-01)

Page 2

NORCOLD - Gas Absorption 3 Year Limited

Warranty Policy

Gas Absorption 3 Year Limited Warranty Policy ......................... 2

Gas Absorption Warranty Information ........................................ 3

Gas Absorption Warranty Questions .......................................... 3

Safety Awareness ....................................................................... 4

Safety Instuctions ....................................................................... 4

About Your Refrigerator .............................................................. 4

Storage volume ................................................................... 4

Leveling ............................................................................... 4

Food compartment .............................................................. 4

Flip-up shelf ........................................................................ 4

Door bins ............................................................................. 5

Freezer compartment .......................................................... 5

Operation during travel ........................................................ 5

Door latch for travel and storage......................................... 5

Operating the Refrigerator Controls (N400 models) ................. 5

Control Panel ...................................................................... 5

Ignition - propane gas operation ........................................ 5

Do a test of the gas safety valve.......................................... 5

Start up - AC operation......................................................... 6

Start up - DC operation (model N400.3)............................. 6

Shut down ........................................................................... 6

Operating the Refrigerator Controls (N500 models) ................. 6

Control Panel ...................................................................... 5

Ignition - propane gas operation ........................................ 6

Do a test of the gas safety valve.......................................... 6

Start up - AC operation......................................................... 7

Start up - DC operation (model N500.3)............................. 7

Shut down ........................................................................... 7

Operating the Refrigerator Controls (N510 models) ................. 7

Control Panel ...................................................................... 7

Automatic mode operation .................................................. 7

Manual mode operation ...................................................... 7

Ignition of propane gas in either auto or gas mode ........... 8

Shut down ........................................................................... 8

Backup operating system ................................................... 8

DC Operation Precautions (models N400.3, N500.3, and

N510.3)................................................................................ 8

DC Operation Guidelines (models N400.3, N500.3, and

N510.3)................................................................................ 8

Refrigerator Care Checklist ....................................................... 9

Defrosting and Cleaning ............................................................ 9

Defrosting............................................................................ 9

Cleaning.............................................................................. 9

Door Sealing .............................................................................. 9

Refrigerator Maintenance Checklist .......................................... 9

Refrigerator Maintenance ......................................................... 10

Gas flame appearance ..................................................... 1 0

Remove and clean the burner orifice ............................... 10

Fuse Replacement (model N510 models only) ...................... 1 0

Remove the Refrigerator ........................................................... 11

Reinstall the Refrigerator .......................................................... 11

Replacement Parts ...................................................................11

Wiring Pictorial (N400 models only) ........................................ 1 2

Wiring Diagram (N400 models only) ....................................... 12

Wiring Pictorial (N500 models only) ........................................ 1 2

Wiring Diagram (N500 models only) ....................................... 12

Wiring Pictorial (N510 models only) ........................................ 1 2

Wiring Diagram (N510 models only) ....................................... 12

Fault Codes (N510 models only) ............................................. 13

Norcold • P.O. Box 4248 • Sidney, OH • USA • 45365-4248

Provided it is properly installed, properly maintained and placed under normal service and use, Norcold, Inc. warrants its refrigeration equipment to be free from defects in material and workmanship for three years with respect to the equipment’s component parts, and for two years with respect to the labor to repair or replace such parts, commencing from the original date of purchase.

Limitations of warranty

1. This Warranty applies only to Norcold gas absorption refrigerator operating equipment. This Warranty does not extend to glassware, electric light bulbs, and replaceable fuses.

2. This warranty does not apply to parts and assemblies that have been subjected to misuse, improper installation, improper or abnormal service, transit damage, recharging of the cooling system, accident, fire, improper repair, tampering or abuse.

3. Irrespective of the nature of the warranty protection offered or claimed, the period of warranty shall in no case extend beyond three years for component parts and two years for the labor to repair or replace such parts, commencing from the original date of purchase of the new equipment.

4. In order to obtain the remedy of repair and replacement, the refrigerator must be brought to any Norcold Service Center for warranty service. The end consumer is responsible for all expenses resulting from any remote service call if the refrigerator cannot be brought into the Norcold service center.

5. It is the responsibility of the end consumer to have maintenance performed upon the warranted equipment one time during the second year or before the beginning of the third year after original purchase. Such maintenance is required to maintain this warranty in effect and failure to perform such maintenance will void the remainder of the warranty. Required maintenance during the second year or before the third year after purchase is cleaning and checking of the following: Burner, Flue, Spiral Baffle, Roof Cap Screen, and Control Board Sequence.

Limitation of remedy

1. The responsibility of Norcold under this or any warranty is limited to the repair or replacement (at Norcold’s option) of the defective part or assembly.

2. In no event and under no circumstances shall Norcold be responsible under this limited warranty for any other charge whatsoever, including but not limited to charges or claims for labor, lost business, lost time, lost profits, loss of use, or any kind of incidental or consequential damages, however denominated or described. The remedy under this warranty is limited to replacement or repair.

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Page 3

3. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above exclusion may not apply to you.

Disclaimer of other warranties

This warranty is expressly in lieu of all other warranties either expressed or implied. All other warranties, expressed or implied, including any warranty of merchantability or fitness for a particular purpose, are hereby disclaimed and excluded.

Legal rights

This warranty gives you specific legal rights, and you may have other legal rights, which vary from state to state.

Gas Absorption Warranty Information

Your refrigerator is made to provide the ultimate in cooling satisfaction and will serve you reliably in the years to come. Norcold refrigerators are the only RV refrigerators made in the United States and offer a standard limited three-year warranty. Norcold also offers an additional warranty coverage plan which extends the standard limited three-year warranty. To activate your three-year limited warranty and to receive an invitation to participate in the extended warranty plan, complete and mail the warranty registration supplied.

Help us to help you. Write the model number and serial number below for future

reference. These numbers are on the serial plate in the refrigerator. The serial plate is located in the fresh food compartment on the top right hand side. Use these numbers when receiving service or in any correspondence concerning your refrigerator.

Model number ___________ Serial number ___________ If a problem occurs with your refrigerator, contact any of the

service centers throughout the United States and Canada. To find an authorized Norcold Service Center near you, please telephone the Norcold Customer Support Dept. at 800-5431219 (option-1) or visit our web site at www.norcold.com.

Norcold is committed to providing products that are in harmony with the environment. Your Norcold refrigerator meets all environmental safety standards.

Gas Absorption Warranty Questions

This warranty is the only warranty for your Norcold refrigerator. There are no other express warranties. The only uses for this product are described in this manual. Part or model specifications are subject to change without notice.

What does this warranty cover?

This warranty covers labor and U.P.S. ground transportation costs incurred in removing and reinstalling the refrigerator when necessary to replace a defective part and any parts replaced under warranty (including cooling units).

What is not covered by this warranty?

- Travel expenses for bringing the refrigerator to an authorized Norcold Service Center for warranty coverage.

- Additional costs caused by the inability to bring the

refrigerator to an authorized Norcold Service Center.

- Defects which are caused by transit damage, misuse, neglect, or accident.

- Manufacturing defects found at the time of purchase, parts replaced under warranty, and associated labor, which the original consumer-purchaser do not communicate to Norcold within 30 days.

- Labor, performed without need for parts replacements, which the original consumer-purchaser does not communicate to Norcold within 30 days.

- Defects in glassware, electric light bulbs, or replacement fuses.

- Defects caused by improper installation, maintenance, or adjustment.

- Normal maintenance of this refrigerator as described in this manual.

- Defects caused by the improper use of parts or parts not manufactured or supplied by Norcold for repairs or replacements to the refrigerator.

Norcold will not be liable for any incidental or consequential loss or damage, due directly or indirectly to the use of this product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above may not apply to you.

How long does this warranty last?

This warranty is effective for a period of two years from date of purchase or for a period of three years from date of puchase if the required maintenance is done.

What will Norcold do?

Norcold will provide free service and replacement of defective parts, at no charge, at all authorized Norcold Service Centers. Norcold has the option of replacing the defective parts or the entire refrigerator. If the refrigerator is replaced, Norcold is not responsible for replacing dealer installed options.

How do you get service?

Bring the refrigerator to any authorized Norcold Service Center and:

- Show proof that the defective item is within warranty coverage.

- Show proof that required maintenance has been performed if applicable. Required maintenance during the second year or before the third year after purchase is cleaning and checking of the Burner, Flue, Spiral Baffle, Roof Cap Screen, and Control Board Sequence.

If you are unable to bring the refrigerator to an authorized Norcold Service Center:

- Send a written notice of the defect to Norcold.

- Norcold will promptly advise you how to obtain warranty

service.

What rights do you have?

This warranty gives you specific legal rights. You may also have other rights which vary from state to state.

Owner’s Manual 3

Page 4

Safety Awareness

Read this manual carefully and understand the contents before you use the refrigerator.

Be aware of possible safety hazards when you see the safety alert symbol on the refrigerator and in this manual. A signal word follows the safety alert symbol and identifies the danger of the hazard. Carefully read the descriptions of these signal words to fully know their meanings. They are for your safety.

WARNING: This signal word means a hazard, which if

ignored, can cause dangerous personal injury, death, or much property damage.

CAUTION: This signal word means a hazard, which if

ignored, can cause small personal injury or much property damage.

Safety Instructions

- The refrigerator cooling system is under pressure. Do not try to repair or to recharge a defective cooling system. The cooling system contains sodium chromate. The breathing of certain chromium compounds can cause cancer. The cooling system contents can cause severe skin and eye burns, and can ignite and burn with an intense flame. Do not bend, drop, weld, move, drill, puncture, or hit the cooling system.

CAUTION:

- The rear of the refrigerator has sharp edges and corners. To prevent cuts or abrasions when working on the refrigerator, be careful and wear cut resistant gloves.

- Make sure all fasteners and connections are tight.

About Y our Refrigerator

Storage Volume:

WARNING:

- Disconnect both the AC and DC power sources before doing any maintenance work on the refrigerator. All service work on this refrigerator must be done by a qualified service technician.

- The storage of flammable materials behind or around the refrigerator creates a fire hazard. Do not use the area behind the refrigerator to store flammable materials (gasoline, cleaning supplies, etc.)

- A circuit overload can result in an electrical fire if the wires and/or fuses are not the correct size. Use only the wire and fuse sizes as written in the “Installation Manual”.

- Incorrect installation, adjustment, change to, or maintenance of this refrigerator can cause personal injury, property damage, or both. Have service and maintenance work done by your dealer or by an Norcold authorized service center.

- Do not remove the round ground prong from the refrigerator AC power cord. Do not use a two prong adapter or extension cord on the AC power cord.

- Do not spray liquids near electrical outlets, connections, or the refrigerator components. Many liquids are electrically conductive and can cause a shock hazard, electrical shorts, and in some cases fire.

- Do not bypass or change the refrigerator’s electrical components or features.

- When you discard an appliance, remove all doors to prevent accidental entrapment and suffocation.

This refrigerator is made to store fresh and frozen foods and for making ice.

Total capacity 4.50 cubic feet 5.50 cubic feet Freezer capacity .81 cubic feet .81 cubic feet Food compartment capacity 3.69 cubic feet 4.69 cubic feet

N400 N500 and N510

Leveling:

CAUTION:

off level side-to-side and 6° off level front-to-back (as looking at the front of the refrigerator). Operating it at more than these limits can cause damage to the cooling system and create a risk of personal injury or property damage. Make sure the vehicle is level before you operate the refrigerator.

The refrigerator is made to operate within 3°

Food compartment:

Ignite or start up the refrigerator and let it cool for eight hours before loading with food. If the refrigerator does not start to cool down after about two hours, contact your dealer or an authorized Norcold Service Center.

For the best cooling performance:

- Let air move freely inside the entire food compartment.

- Do not cover the shelves with plastic, paper, etc.

To decrease the amount of ice that collects on the cooling fins:

- Cover all liquids and moist foods.

- Let all hot foods cool before putting them in the refrigerator.

- Do not open the door any longer than necessary.

Owner’s Manual 4

Flip-up shelf:

The flip-up shelf supplies a space to store tall bottles. To use the flip-up shelf, lift the center of the shelf and fold it up against the inside wall of the refrigerator.

Page 5

Door Bins:

You may put the door bins [1] of the fresh food compartment in a location that best meets your need (See Art01114). To remove the bins, lift them over the locator and pull them forward. To install the bins, push them onto the locator.

NOTE: Do not wash the door bins in a dishwasher. The door

bins are not dishwasher safe.

When the outside air temperature is below 50° F, the refrigerator may have a tendency to freeze food at the colder temperature settings. To reduce the tendency to freeze food:

- Turn the thermostat to a warmer temperature setting.

- Keep the refrigerator full.

- Put foods that are more likely to freeze on the upper shelf.

Freezer compartment:

The freezer compartment is made to keep pre-frozen food frozen and not to quick freeze food. Keep pre-frozen foods in the freezer compartment.

NOTE: Do not put other items on the ice tray while the water is

freezing. The water freezes more rapidly if the thermostat is at the coldest temperature setting.

Operation during travel:

While the refrigerator should be level when the vehicle is stopped, performance during travel is not usually effected.

Door latch for travel and storage:

During travel, the door latch prevents the door from opening. There are no chains, slides, or any devices that you must engage.

During storage, the door latch prevents the door from completely closing. Use it to prevent odors when the refrigerator is shut down for a long period of time.

To use the door latch for storage (See Art00979):

- Open the door just so the door latch [1] is between the ribs [2] of the latch plate [3].

Operating the Refrigerator Controls (N400 models)

Control panel:

The selector switch [2] changes the energy source of the refrigerator between propane gas ( electric (

The gas safety valve [3] is built into the control panel. As long as a flame is present, the valve is open and allows propane gas to flow into the burner. Any loss of flame (empty propane gas tank, blow out, etc.) closes the safety valve and stops the flow of propane gas.

The piezo igniter [4] makes a spark which ignites the flame in the burner.

The flame meter [5] shows if a flame is present in the burner.

), and OFF ( ).

), AC electric ( ), DC

Ignition - propane gas operation:

1. Open the valve at the propane gas storage tank.

2. Turn the thermostat [1] to the 5 position.

3. Turn the selector switch [2] to the propane gas position (

4. Push and hold in the safety valve [4] and push in the igniter [3] several times in rapid succession, for about five seconds:

Thermostat...........................................................................1

Selector switch ..................................................................... 2

Piezo lighter .........................................................................3

Gas safety valve ................................................................... 4

Flame meter ........................................................................ 5

The thermostat [1] (See Art01280) changes the amount of propane gas that goes to the burner. This acts as the temperature control of the refrigerator. Number 5 is the coldest temperature setting.

NOTE: This is not an automatic gas control. It does not change

the flame from high fire to low fire as do some RV refrigerators. If the cooling load changes, you must manually change the gas control to maintain the same temperature inside the refrigerator.

WARNING: Do not hold in the safety valve for more than

30 seconds. If there is no flame in this time, wait at least five minutes before you try ignition again. If you continue to hold in the safety valve, gas will collect in the burner area. This could cause a fire or explosion and result in dangerous personal injury or death.

- When a flame is present and the flame meter [5] moves into

the green area, release the safety valve.

- If the flame meter does not move into the green area, do

this step again.

5. Turn the thermostat to the temperature setting that you wish.

Do a test of the gas safety valve:

With an established flame in GAS mode:

1. Close the manual gas shutoff valve [2] of the refrigerator (See Art00975].

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2. After the flame is extinguished, you should hear a sharp “click” sound within three minutes.

NOTE: The gas safety valve should close with a sharp “click“

sound.

3. Open the manual gas shutoff valve of the refrigerator.

4. Without pushing in the gas control, push the igniter several times rapidly in succession. The burner flame should not ignite. This means that the gas safety valve is working correctly.

Start up - AC operation:

- Make sure that 120 volts AC is available.

The selector switch [2] changes the energy source of the refrigerator between propane gas ( electric (

The flame indicator [4] shows if a flame is present in the burner.

), and OFF ( ).

), AC electric ( ), DC

Ignition - propane gas operation:

1. Open the valve at the propane gas storage tank.

- Turn the selector switch to the AC position (

- Turn the thermostat to the temperature setting that you

wish.

Start up - DC operation (3-way model N400.3):

- Make sure that 12 volts DC is available.

- Turn the selector switch to the DC position (

Shut down:

- Turn the selector switch to the OFF position ( ).

Operating the Refrigerator Controls (N500 models)

Control panel:

Thermostat...........................................................................1

Selector switch ..................................................................... 2

Gas safety valve ................................................................... 3

Flame indicator .................................................................... 4

The thermostat [1] (See Art01281) changes the amount of propane gas that goes to the burner. This acts as the temperature control of the refrigerator. Number 5 is the coldest temperature setting.

NOTE: This is not an automatic gas control. It does not change

When the outside air temperature is below 50° F, the refrigerator may have a tendency to freeze food at the colder temperature settings. To reduce the tendency to freeze food:

Owner’s Manual 6

the flame from high fire to low fire as do some RV refrigerators. If the cooling load changes, you must manually change the gas control to maintain the same temperature inside the refrigerator.

- Turn the thermostat to a warmer temperature setting.

- Keep the refrigerator full.

- Put foods that are more likely to freeze on the upper shelf.

2. Turn the thermostat [1] to the 5 position.

3. Turn the selector switch [2] to the propane gas position (

4. Push and hold in the safety valve [3] for about five seconds:

- The refrigerator automatically ignites the gas at the burner.

WARNING: Do not hold in the safety valve for more than

- When a flame is present and the flame indicator [4] illuminates, release the safety valve.

- If the flame indicator does not illuminate, do this step again.

5. Turn the thermostat to the temperature setting that you wish.

Do a test of the gas safety valve:

With an established flame in GAS mode:

1. Close the manual gas shutoff valve [2] of the refrigerator (See Art00975].

2. After the flame is extinguished, you should hear a sharp “click” sound within three minutes.

NOTE: The gas safety valve should close with a sharp “click“

sound.

3. Open the manual gas shutoff valve of the refrigerator.

4. Without pushing in the gas control, push the igniter several times rapidly in succession. The burner flame should not ignite. This means that the gas safety valve is working correctly.

Page 7

Start up - AC operation:

- Make sure that 120 volts AC is available.

- Push and hold the MODE button and a light bar flashes in

the center display beside each of the four operating modes of the refrigerator, one at a time.

- Turn the selector switch to the AC position (

- Turn the thermostat to the temperature setting that you wish.

Start up - DC operation (3-way model N500.3):

- Make sure that 12 volts DC is available.

- Turn the selector switch to the DC position (

Shut down:

- Turn the selector switch to the OFF position ( ).

Operating the Refrigerator Controls(model N510 )

Control panel:

- There is one automatic mode of operation and two (three on model N510.3) manual modes of operation.

- When the light bar flashes beside the mode of operation that you wish, release the MODE button.

Automatic mode operation:

When you select AUTO mode, the refrigerator controls automatically select the most efficient energy source that is available for operation. If a more efficient energy source becomes available, the refrigerator controls change from the current energy source to the more efficient energy source. The refrigerator will not select DC operation.

The controls select the energy source in this sequence:

- When 120 volts AC is available to the refigerator:

- The light bar beside AUTO [5] and the light bar beside AC [6] show in the center display.

- After ten seconds, the light bar beside AC goes off and only the light bar beside AUTO remains.

- This means that the refrigerator is operating on AC electric.

- If 120 volts AC is not available to the refrigerator:

- The light bar beside AUTO and the light bar beside LP GAS [7] show in the center display.

The refrigerator control panel (see Art10562) is above the refrigerator door. To maintain the operating control functions of the refrigerator, a 12 volt DC power supply is necessary. The refrigerator and any other DC components in the vehicle receive DC power from the 12 volt system of the vehicle; either an auxillary battery, a converter, or the vehicle engine battery .

The ON / OFF button [1] starts and shuts down the refrigerator:

- If the refrigerator is shut down, press the ON / OFF button to start the refrigerator in auto mode.

- If the refrigerator is operating, press and hold the ON / OFF button for two seconds to shut down the refrigerator.

The TEMP SET button [2] controls the temperature adjustment of the freezer and the fresh food compartment. The temperature adjustment that you select does not change if the mode of operation of the refrigerator changes.

- Push the TEMP SET button and the temperature setting “19” appears in the center display [3].

- Push and hold the TEMP SET button and the temperature setting changes.

- The number “9” is the coldest temperature setting.

The MODE button [4] controls the operation mode of the refrigerator.

- After ten seconds, the light bar beside LP goes off and only the light bar beside AUTO remains.

- This means that the refrigerator is operating on propane gas.

If an energy source is available to the refrigerator, but is not operating correctly:

- A fault code appears in the center display.

- The refrigerator controls try to change to a less efficient energy source.

- If a less efficient energy source is not available:

- The refrigerator stops operation.

- Refer to the “Fault Codes” section of this manual.

Manual mode operation:

When you select one of the manual modes of operation, The light bar beside the AUTO goes out in the center display and only the light bar beside either AC, LP, or DC remains.

- AC means that the refrigerator is operating on AC electric.

- DC means that the refrigerator is operating on DC electric.

- LP means that the refrigerator is operating on propane gas.

If the energy source is interrupted:

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- The refrigerator stops operation.

- Refer to the “Fault Codes” section of this manual.

- If the temperature is too cold, push and hold the TEMP SET button to lower the temperature setting by one number.

Ignition of propane gas in either auto or manual mode:

NOTE: On initial start up of the refrigerator, ignition of the

propane gas may not occur within 30 seconds.

If ignition of the propane gas does not occur within 30 seconds:

- The gas safety valve of the refrigerator closes.

- The refrigerator stops operation.

- Refer to the “Fault Codes“ section of this manual.

- The fault code remains until you push the ON / OFF button two times (to stop and start the refrigerator).

- If ignition does not occur after two or three times:

- Check the gas supply line.

- Consult your local dealer or an authorized Norcold Service Center.

- Change to manual mode and operate on AC electric.

Shut down:

- To shut down the refrigerator, push and hold the ON/OFF button for two seconds.

Backup operating system:

This refrigerator has a backup operating system. The backup operating system allows the refigerator to continue to cool if the temperature sensor of the refrigerator should fail.

If this failure occurs:

- Have the refrigerator serviced by your dealer or an Norcold authorized Service Center as soon as possible.

DC Operation Precautions (models N400.3, N500.3, and N510.3)

This refrigerator is made to operate on DC power while your vehicle is “in transit” and AC power or propane gas sources are not available. Operate the refrigerator on DC power only when the vehicle engine is running.

For the refrigerator to operate correctly on DC power, the battery must be maintained in a fully charged condition.

For the battery to be fully charged at all times during refrigerator operation on DC, the vehicle engine alternator must be in good operating condition.

Keep in mind the following electrical precautions for DC operation of the refrigerator:

- Good battery condition is necessary for correct DC operation.

- The capacity of the battery charging system must be more than what is necessary for the refrigerator and other DC appliances.

- While the vehicle engine is running, make sure the voltage of the DC power supply leads at the refrigerator is more than 11.5 VDC.

must be running and the

DC Operation Guidelines (models N400.3, N500.3, and N510.3)

- The refrigerator automatically changes to the backup operating system.

- When you push the TEMP SET button, the temperature setting flashes in the center display for ten seconds.

- After the temperature setting flashes, the mode of operation appears in the center dispaly.

- The backup operating system can overfreeze or thaw the contents of the freezer and the fresh food compartment.

- Make sure the temperatures of the freezer and the fresh food compartment are satisfactory.

NOTE: If you open the door(s) too often, the tempera-

tures inside the freezer and fresh food compartment do not become stable. Allow the refrigerator to operate for about one hour after each adjustment change before you examine the contents. The number “9” is the coldest temperature setting.

- If the temperature is too warm, push and hold the TEMP SET button to raise the temperature setting by one number.

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DC operation is intended only to maintain the temperature of the refrigerator and its contents when they are already cool.

The DC operation is not intended for the initial start up and cooling of the refrigerator. Always use either the AC operation or propane gas operation to initially start up and cool the refrigerator. The refrigerator must be cooled and the temperature must be steady before you operate the refrigerator on DC.

Keep in mind the following guidelines for DC operation of the refrigerator:

- Use DC operation of the refrigerator while the vehicle is in transit.

- Do not use DC operation until the refrigerator and its contents are completely cooled.

- Only use DC operation if the vehicle battery and alternator are in good operating condition.

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Refrigerator Care Checklist

Your refrigerator will give you years of trouble free service if you do these simple checks every three to six months:

- Keep the food compartment and the freezer clean. See “Defrosting and Cleaning”.

- Defrost the refrigerator as necessary. See “Defrosting and Cleaning”.

- Make sure the door seals correctly. See “Door Sealing“.

- Be aware of any cooling changes that are not because of weather, loading, or gas control changes. If changes occur, contact your dealer or an authorized Norcold Service Center.

- Make sure the gas supply is propane gas only and not butane or a butane mixture.

Defrosting and Cleaning

Defrosting:

It is normal for frost to collect on the cooling fins inside the refrigerator. Excess frost decreases the cooling performance of the refrigerator. Defrost the refrigerator when frost starts to close the spaces between the fins:

- Shut down the refrigerator.

Door Sealing

If the door does not seal correctly, excess frost will collect inside the refrigerator. Make sure the door seals correctly:

- Close the door on a piece of paper that is about the size and thickness of a dollar bill (See Art00980).

- Gently pull the paper.

- You should feel a slight drag between the gasket and the cabinet.

- Do this on all four sides of the door.

- If you do not feel a slight drag on the paper, the door is not sealing correctly:

- Make sure the screws of the hinges are tight.

- Make sure the door gasket does not touch the door latch:

- If the door gasket touches the door latch, loosen the screws of the door latch.

- Raise the door latch just so it does not touch and tighten the screws of the door latch.

- Make sure the door latch holds the door closed

- Remove all food from the refrigerator. NOTE: Defrosting the refrigerator makes excess water inside

the refrigerator.

- Put dry towels (etc.) inside the refrigerator to absorb the water.

- Put trays of hot water in the freezer until the frost is melted.

- Empty the drip tray.

- Remove the wet towels (etc.) and dry the interior.

- Put the drip tray and all food in the refrigerator.

- Ignite or start up the refrigerator.

Cleaning:

A good time to clean the refrigerator is just after you defrost it. Clean the inside of the refrigerator as often as necessary to

avoid food odors:

- Remove all food from the refrigerator.

NOTE: Do not use abrasive cleaners, chemicals, or

scouring pads because they can damage the interior of the refrigerator.

- Wash the interior with a solution of liquid dish detergent and warm water.

Refrigerator Maintenance Checklist

Read and understand the following maintenance sections of this manual.

NOTE: Norcold is not responsible for installation, adjust-

ment, alteration, service, or maintenance performed by anyone other than a qualified RV dealer or an authorized Norcold Service center.

Have a qualified RV dealer or an authorized Norcold Service Center do these annual safety and maintenance checks:

- Examine the gas supply lines for leaks.

- Replace or repair if needed.

- Make sure the propane gas pressure is correct.

- Adjust if needed.

- Make sure the combustion seal is complete and intact.

- Replace or repair it if needed.

- Make sure the burner and the burner orifice are clean (See Art00956).

- Clean if needed.

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- Make sure the electrode spark gap [3] is 1/8 - 3/16 inch (See Art00955).

- Adjust if needed.

- Make sure the AC and DC voltages are correct.

- Adjust if needed.

- Make sure the thermocouple tip is clean and secure.

- Make sure the area at the rear of the refrigerator is free of any combustible materials, gasoline, and other flammable vapors and liquids.

Refrigerator Maintenance

Gas flame appearance:

While in propane gas operation, examine the appearance of the gas flame:

- Turn the thermostat to the 5 position.

- Open the lower intake vent.

CAUTION: The burner box cover can be hot. Wear

gloves to avoid burns.

- Open the burner box door [3] and look at the gas flame [1] (See Art00955 and Art00975).

- The flame should be a darker blue inside and a lighter blue outside and should be a constant and steady shape.

- Shut down the refrigerator..

- Open the lower intake vent.

- Remove the burner box cover by removing one screw.

WARNING: To avoid possible propane gas leaks,

always use two wrenches to loosen and tighten the gas supply line at the refrigerator’s manual shut off valve.

- Remove the flare nut from the orifice assembly [1] (See Art00956).

- Remove the orifice assembly from the burner [2].

WARNING: Do not try to remove the orifice [3] from

the orifice adapter [4] when cleaning. Removal will damage the orifice and seal of the orifice and can cause a propane gas leak. Leaking propane gas can ignite or explode which can result in dangerous personal injury or death. Do not clean the orifice with a pin or other objects.

- Clean the orifice assembly with air pressure and alcohol only.

- Using a wrench, assemble the orifice assembly to the burner.

- Assemble the flare nut to the orifice assembly.

- Tighten the flare nut by hand.

- Hold the orifice assembly securely and, using a wrench, tighten the flare nut 1/4 revolution only.

- Examine all of the connections for gas leaks.

- If the flame is yellow or has an erratic and unstable shape, contact your dealer or an authorized Norcold Service Center.

- Make sure the flame does not touch the inside of the flue tube [2].

- If the flame touches the inside of the flue tube, contact your dealer or an authorized Norcold Service Center.

- Close the burner box door.

Remove and clean the burner orifice:

NOTE: Your dealer or an authorized Norcold Service Center

must do this procedure.

To remove and clean the burner orifice:

- Close the valve at the propane gas tank(s).

- Close the manual shut off valve of the refrigerator.

Fuse Replacement (N510 models only)

The electrical circuits of this refrigerator have fuses to protect them from an overload. If the fault codes show that a fuse is unservicable, replace it as follows.

WARNING: Do not operate the refrigerator without the

power board cover on the refrigerator. To prevent a circuit overload and a possible electrical fire, use only these fuses:

DC control circuit - 5 amp (purple) blade type automotive

fuse

DC heater circuit - 30 amp (green) blade type automotive

fuse

AC circuit - 5 amp glass cartridge fuse

1. Push the ON/OFF button to shut down the refrigerator.

2. Remove the black AC power cord from the receptacle.

3. Remove the AC power cord from the power board that is at the rear of the refrigerator.

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4. Remove the DC power supply wires from the power board.

5. Remove the ignition sense wire from the power board.

6. Remove the gas valve wires from the power board.

7. Remove the mounting screws and the power board cover.

8. Replace the unservicable fuse(s) with the new fuse(s) of the correct type and size.

9. Reverse this procedure and assemble the power board cover and all wiring.

10. If the fuse(s) continues to become unservicable, consult your dealer or a Norcold authorized Service Center.

Remove the Refrigerator

NOTE: Your dealer or an authorized Norcold Service Center

must do this procedure.

CAUTION: The rear of the refrigerator has sharp edges

and corners. To prevent cuts or abrasions when working on the refrigerator, be careful and wear cut resistant gloves.

Reinstall the Refrigerator

NOTE: Your dealer or an authorized Norcold Service Center

must do this procedure.

WARNING: Make sure the combustion seal is not

broken, is completely around the refrigerator mounting flanges, and is between the mounting flanges and the wall of the enclosure. If the combustion seal is not complete, exhaust fumes can be present in the living area of the vehicle. The breathing of exhaust fumes can cause dizziness, nausea, and in extreme cases, death.

1. Push the refrigerator completely into the enclosure.

2. Remove the door from the refrigerator.

3. Put the screws though the mounting flanges and into the wall.

4. Attach the door to the refrigerator

CAUTION: The rear of the refrigerator has sharp edges

and corners. To prevent cuts or abrasions when working on the refrigerator, be careful and wear cut resistant gloves.

5. Open the lower intake vent and put the screws through refrigerator and into the floor.

1. Close the valve at the propane gas tank(s).

WARNING: To avoid possible propane gas leaks,

always use two wrenches to loosen and tighten the gas supply line at the refrigerator’s manual shut off valve.

2. Open the lower intake vent and remove the gas supply line from the manual shut off valve of the refrigerator.

3. Remove the AC power cord from the receptacle.

4. Remove the DC wiring from the refrigerator:

- Put a mark on the DC wires so you can put them back in

the correct location.

- Remove the DC fuse or remove the DC wiring from the

battery or the converter of the vehicle.

- Remove the DC wires from the refrigerator.

5. Remove the screws which fasten the refrigerator to the floor.

6. Remove the door from the refrigerator.

7. Remove the screws which fasten the refrigerator to the wall.

8. Remove the refrigerator from the opening.

9. Attach the door to the refrigerator.

WARNING: To avoid possible propane gas leaks,

always use two wrenches to loosen and tighten the gas supply line at the refrigerator’s manual shut off valve.

6. Attach the gas supply line to the manual shut off valve of the refrigerator.

7. Open the valve at the propane gas tank(s).

WARNING: Do not allow the leak checking solution to

touch the electrical components. Many liquids are electrically conductive and can cause a shock hazard,electrical shorts, and in some cases fire.

8. Examine the gas supply line for leaks.

9. Connect the DC wiring to the refrigerator:

- Install the DC fuse or connect the DC wiring to the battery or

the converter.

- Connect the DC wires from the refrigerator.

10. Connect the AC power cord to the receptacle.

Replacement Parts

You may purchase replacement parts through your local RV dealer or an authorized Norcold Service Center.

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Wiring Pictorial (N400 models only)

Wiring Diagram (N500 models only)

The parts of the wiring pictorial are (Art01326):

1 .............................................................120VAC Power cord

2 ..................................................................... Terminal block

3 ...........................................................................3 Amp fuse

4 .................................................................... Selector switch

5 ..................................................................... Thermocouple

6 ..............................................Thermostat / gas safety valve

7 ................................................... Thermocouple interrupter

8 ........................................................................ Flame meter

9 .............................................................................AC heater

10 ........................... -12 VDC Power supply (model N400.3)

11 ........................... +12 VDC Power supply (model N400.3)

12 ............................................ 25 Amp fuse (model N400.3)

13 ............................................... DC heater (model N400.3)

Wiring Diagram (N400 models only)

The parts of the wiring diagram are (See Art01327):

1 ............................................................................... 120 V AC

3 ...........................................................................3 Amp fuse

5 ..................................................................... Thermocouple

6 ...................................................................Gas safety valve

7 ................................................... Thermocouple interrupter

8 ........................................................................ Flame meter

9 .............................................................................AC heater

10 ......................................... -12 VDC Com (model N400.3)

11 ................................................... +12 VDC (model N400.3)

12 ............................................ 25 Amp fuse (model N400.3)

13 ............................................... DC heater (model N400.3)

14 ........................................................................ Thermostat

15 .......................................................................... Spark gap

16 ....................................................................... Piezo lighter

The parts of the wiring diagram are (See Art01315):

1 ............................................................................... 120 V AC

3 ...........................................................................3 Amp fuse

5 ..................................................................... Thermocouple

8 ................................................................... Flame indicator

9 .............................................................................AC heater

10 .................................................................... -12 VDC Com

11............................................................................. +12 VDC

12 ............................................ 25 Amp fuse (model N500.3)

14 ............................................................................ Relighter

15 ............................................... DC heater (model N500.3)

16 .........................................................................1 Amp fuse

17 ........................................................................ Thermostat

18 .................................................................Gas safety valve

19 ................................................. Thermocouple interrupter

20 .......................................................................... Spark gap

Wiring Pictorial (N510 models only)

The parts of the wiring pictorial are (Art01576):

1 ............................................................................... 120 V AC

2 ........................................................ -12 VDC Power supply

3 ....................................................... +12 VDC Power supply

4 ........................................................................ Power board

5 ...........................................................................5 Amp fuse

6 .............................................. 30 Amp fuse (model N510.3)

7 .............................................................................AC heater

8 ................................................. DC heater (model N510.3)

9 ...................................................................Gas safety valve

10 ................................................................. Spark electrode

11 ......................................................... Display board overlay

12 .................................................................... Display board

13 ......................................................... Temperature sensor

14 .................................................................... Fan (optional)

15 ........................................................ Thermostat (optional)

Wiring Pictorial (N500 models only)

The parts of the wiring pictorial are (Art01314):