Whirlpool Inverter Box (W10629033)

The Whirlpool Inverter Box controls power delivery to the refrigerator’s compressor. It converts incoming electrical power into the controlled output the compressor needs to start, run at variable speed, and maintain steady cooling. Common causes of failure include electrical surges, heat buildup from restricted airflow around the compressor area, moisture intrusion, or internal component wear over time. Loose or damaged wiring to the inverter or compressor can also mimic an inverter problem and may lead to repeated shutdowns. These symptoms can help you decide if the Whirlpool Inverter Box matches your issue: - Refrigerator not cooling or cooling is weak while interior lights and controls still work - Compressor does not start, starts then stops, or cycles on and off more often than normal - Clicking, buzzing, or brief humming from the compressor area followed by shutdown - Intermittent cooling that comes and goes without changes to temperature settings - Warm refrigerator and freezer sections with the evaporator fan running but no steady compressor operation