Display shows E19; unit may trip the breaker or show erratic power behavior.

Safety first: Turn off the circuit breaker and unplug the refrigerator before accessing the control board. Use caution when later testing live circuits.

Steps:

• Check outlet and breaker: Verify the outlet is properly grounded and the breaker is not shared with heavy loads. Avoid GFCI outlets for large refrigerators unless required by code.
• Inspect power cord: Look for cuts, burns, or crushed sections on the cord.
• Control board inspection: Access the main control and inspect for burned components in the power supply area (near where the cord connects).

Corrective action: If the main control shows visible damage or the unit repeatedly throws E19 after confirming proper house power, replace the main control board. If the breaker trips immediately when plugging in, consult a qualified electrician and appliance technician.