Er 14

Dometic Refrigerator: “Er 14”

warning RV refrigerator error codes

Safety Isolate both 120V AC and 12V DC before working at the rear of the fridge. These are propane-absorption appliances: if you smell gas at any time near the unit or its roof/side vent, stop work, shut off the propane supply, ventilate, and avoid creating any electrical spark until the smell is gone.

What it means

The control board has detected an open circuit to the fan in the freezer compartment — it can no longer detect the freezer (frozen-food) circulation fan, so it flags the fan circuit as faulty. The code flashes on the LED panel alternating with 'CALL'. (Note: a freezer fan that is physically blocked by ice, rather than electrically open, is reported separately as 'Er 02'.)

Most likely causes

  1. Loose wires in the harness connected to connector P5 on the lower control board most likely
  2. Loose/incorrect connections in the inter-connection box inside the freezer compartment common
  3. Wrong polarization (reversed wiring) at the fan terminal block less common
  4. Faulty freezer fan motor common

Safe checks you can do yourself

How to reset / clear Er 14

  1. Turn the refrigerator OFF.
  2. Disconnect 120V AC and the 12V DC supply for several minutes.
  3. Reconnect and turn ON so the board re-runs its self-test.
  4. If the fan circuit reads continuous again, the code clears; if Er 14 returns, the fan or board needs service.

When to call a technician

If the P5/harness connections are confirmed tight and correctly polarized but Er 14 persists, the freezer fan motor or the lower control board is likely defective and should be tested/replaced by a qualified RV refrigeration technician.

Applies to

NDA1402 · NDE1402 · NEA1402 · other Dometic 2-way/electric absorption models that display 'Er' codes and have a powered freezer-compartment fan

FAQ

What does Dometic Refrigerator code "Er 14" mean?

The control board has detected an open circuit to the fan in the freezer compartment — it can no longer detect the freezer (frozen-food) circulation fan, so it flags the fan circuit as faulty. The code flashes on the LED panel alternating with 'CALL'. (Note: a freezer fan that is physically blocked by ice, rather than electrically open, is reported separately as 'Er 02'.)

How do I reset Dometic Refrigerator Er 14?

Turn the refrigerator OFF. Disconnect 120V AC and the 12V DC supply for several minutes. Reconnect and turn ON so the board re-runs its self-test. If the fan circuit reads continuous again, the code clears; if Er 14 returns, the fan or board needs service.

What is the most common cause of Er 14 on a Dometic Refrigerator?

The most likely cause is loose wires in the harness connected to connector p5 on the lower control board.

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Sources

Note: Confirmed from the official Dometic NDA1402/NDE1402 diagnostic service manual. As with code 11, the numeric '14' is generation-specific: some popular online sources describe code 14 on newer Dometic models (e.g. RM10) as a display/power-board communication or battery fault, which is a DIFFERENT control system. Match the code to your exact model's manual. On the RM10 platform the documented fix for a displayed '14' is to install new batteries in the control and press the knob 2 seconds to reset.

● Last verified 2026-06-29 · compiled from manufacturer documentation. Codes can vary by model year — always cross-check your unit’s manual.