Dometic Refrigerator Error Code LP

The LP code indicates a gas operation lockout caused by flame failure. The refrigerator attempted to ignite the propane burner three times without successfully establishing a flame, so the control board locked out gas mode as a safety measure. The display alternates between LP and the current temperature. Resetting the unit by turning it off and back on will allow the ignition sequence to restart.

Yes, powering the refrigerator off and back on clears the lockout and allows the control board to attempt ignition again. However, resetting only addresses the lockout state, not the underlying cause. If the fuel supply and shutoff valves are in good condition but the LP code returns after the reset, a component fault in the burner system needs to be diagnosed.

If the issue is simply an empty tank or a closed valve, there is no repair cost beyond the price of a propane refill, typically in the range of a few dollars to around $30 to $60 depending on tank size. If a component such as the igniter electrode needs replacement, parts and labor can range from approximately $75 to $200 or more depending on the service provider and the specific parts required. A faulty gas valve is a more involved repair and can push costs higher.

Start by turning the unit off, waiting a few seconds, and turning it back on to reset the lockout and trigger a new ignition attempt. Before doing so, verify that the LP tank is not empty and that all manual gas shutoff valves in the supply line are fully open. If the error returns repeatedly, inspect the burner area for debris or blockages, and have the igniter electrode and gas valve checked by a technician.

The lockout itself is a safety feature, not a hazard. The control board stops ignition attempts after three failures specifically to prevent unburned propane from accumulating around the appliance. As long as the unit has locked out and is no longer attempting ignition, there is no active safety risk. If you smell gas after the lockout, ventilate the area immediately and have the gas supply system inspected before attempting a reset.