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Error code reference

Norcold Refrigerator Error Code 11

No energy source in Auto mode.

Norcold codesNorcold refrigerator codes

No energy source in Auto mode.

First step from the service manual

Select each energy source manually and check if any error codes occur.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
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What 11 means on a Norcold refrigerator

Error code 11 on a Norcold refrigerator indicates that the unit is operating in Auto mode but cannot detect a viable energy source to run on. Norcold RV refrigerators are designed to operate on multiple energy sources, typically 120V AC shore power and LP gas, and in Auto mode the control board automatically selects whichever source is available. When neither source is detected as functional or present, the board generates error code 11 to alert the user that cooling cannot begin or continue.

The control board continuously monitors input signals from both the AC and LP circuits. If the AC voltage is absent or below acceptable threshold levels, and if the gas valve circuit or ignition system also fails to confirm a viable LP source, the board treats both as unavailable and triggers this error. This can result from an actual loss of power or fuel supply, but it can also result from faulty sensors, wiring faults, or component failures that prevent the board from reading available sources correctly.

The recommended first diagnostic step is to manually select each energy source individually and observe whether any additional error codes appear. If the unit operates correctly on one source but not the other, the fault is isolated to the non-functional source. If errors occur on both manual selections, the issue may involve the control board itself, shared wiring, or a configuration problem.

Source: manufacturer service documentation.

Common causes of 11

  1. 01

    No AC shore power available

    Wiring / connection

    The refrigerator is in Auto mode but is not receiving 120V AC input. Check that the shore power connection is active, the breaker is not tripped, and voltage is present at the unit.

  2. 02

    LP gas supply interrupted

    Wiring / connection

    The propane tank may be empty, the service valve may be closed, or a regulator issue may be blocking gas flow to the refrigerator. Confirm tank level and that all valves in the gas line are open.

  3. 03

    Faulty AC or LP detection wiring

    Wiring / connection

    Damaged, corroded, or loose wiring between the energy source circuits and the control board can prevent the board from detecting available power. Inspect harness connections at the board and at each energy source input.

  4. 04

    Failed control board

    Part replacement

    If both energy sources are confirmed available and no additional fault codes appear when each is selected manually, the control board itself may be failing to read input signals correctly and may require replacement.

  5. 05

    LP gas valve or ignition system fault

    Part replacement

    A defective gas valve, failed igniter, or ignition control circuit can prevent the board from confirming LP as a usable source, causing it to report no energy source even when gas is present. Switching to LP mode manually will often trigger a more specific error code to narrow down this fault.

See the test procedure for each cause

Frequently asked questions about 11

What does 11 mean on a Norcold refrigerator?
Error code 11 means the refrigerator is in Auto mode but its control board cannot detect any functioning energy source, either 120V AC or LP gas. The unit will not begin or continue cooling until a valid energy source is confirmed. This can be caused by a real loss of power or fuel, or by a sensor or wiring fault that prevents proper detection.
How do I fix error code 11 on a Norcold refrigerator?
Start by manually selecting each energy source, AC and LP, one at a time, and check if the unit operates or displays a different error code. Confirm that shore power is connected and live, and that the propane tank is not empty with all valves open. If the unit works on one source manually but not in Auto mode, the issue is with detection of the other source. If neither source works manually, inspect wiring connections and consider control board diagnostics.
Is error code 11 on a Norcold refrigerator a safety issue?
Error code 11 itself is not a direct safety hazard. It simply means the refrigerator has stopped operating because no energy source was detected. However, if the code is caused by a gas supply or LP circuit problem, it is worth verifying there are no gas leaks in the supply line before resuming LP operation.
Will resetting the Norcold refrigerator clear error code 11?
A reset may temporarily clear the code, but it will return if the underlying cause is not resolved. If the refrigerator cannot detect AC or LP power after the reset, code 11 will reappear. The root cause, whether a supply issue or a component fault, must be corrected for the unit to operate normally in Auto mode.
How much does it cost to repair a Norcold refrigerator showing error code 11?
Repair costs vary depending on the cause. If the issue is simply a tripped breaker, empty propane tank, or closed valve, there is no parts cost involved. Wiring repairs or connector replacements typically run in the range of $50 to $150 in parts. A control board replacement, if needed, can cost anywhere from $150 to $400 or more depending on the specific board required.

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