E50

Dometic Refrigerator: “E50”

danger RV refrigerator error codes

Safety Propane lockout exists for safety. Never repeatedly force re-ignition if you smell gas — shut off the LP supply, ventilate, and keep ignition sources away.

What it means

Gas ignition lockout: the burner failed to light after three automatic ignition attempts, so the controller locks out gas operation.

Most likely causes

Empty or closed LP cylinder / no gas reaching the burner most likely
Air in the gas line after running the tank empty or after service common
Clogged burner jet/orifice, weak igniter, or fouled electrode common

Safe checks you can do yourself

Check that the propane cylinder has gas and the valve is open; confirm another LP appliance lights.
Purge air from the line by running a stovetop burner briefly (if equipped and safe), then retry.
Inspect the burner area for spider webs or debris (only with gas off and once cool).

How to reset / clear E50

E50 is an ERROR-type fault: after restoring gas, press and hold the control/encoder button about 2 seconds until a beep to reset and allow re-ignition.
If it relocks after three more attempts, stop and investigate the gas path.

When to call a technician

If the cylinder has gas, the line is purged, and E50 still locks out, have the burner, orifice, and igniter serviced by a qualified RV gas technician.

Applies to

RMD10.5 · RMD10.5S · RMD10.5T · RMD10.5X · RMD10.5XS · RMD10.5XT

FAQ

What does Dometic Refrigerator code "E50" mean?

Gas ignition lockout: the burner failed to light after three automatic ignition attempts, so the controller locks out gas operation.

How do I reset Dometic Refrigerator E50?

E50 is an ERROR-type fault: after restoring gas, press and hold the control/encoder button about 2 seconds until a beep to reset and allow re-ignition. If it relocks after three more attempts, stop and investigate the gas path.

What is the most common cause of E50 on a Dometic Refrigerator?

The most likely cause is empty or closed lp cylinder / no gas reaching the burner.

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Sources

Dometic 10 Series Error code reference (gas lock after 3 ignition attempts) — 10 Series OPM, Error type fault messages, E50 (gas lock after 3 ignition attempts — empty cylinder, replace/reset) (Dometic / ManualsLib)
Dometic RMD10.5 Operating manual (Troubleshooting — gas lock) — Section 7.1 — Gas lock after 3 ignition attempts; gas cylinder empty, replace, reset (Dometic)

Note: Related higher gas-fault codes exist on the same board — E51 (gas lock, internal power-module error), E52 (ground contact/short on the gas valve), and E53 (ground contact/short on the ignition electrode) — all of which require service if they recur.

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