Refrigerator runs constantly and rarely shuts off.

Safety first: Unplug the unit before cleaning the rear components.

Step-by-step:

• Check temperature settings: Set fridge to about 4°C and freezer to about -18°C. Extremely low settings cause long run times.
• Clean condenser: Vacuum and brush the condenser coils at the back or underneath the unit.
• Inspect door seals: Look for gaps or cracks in the gaskets. Close a strip of paper in the door at several points; if it pulls out easily, the seal may need adjustment or replacement.
• Check installation: Ensure adequate ventilation around the fridge and that it is not placed next to ovens or radiators.
• Defrost if frosted: Heavy frost in the freezer can reduce efficiency. Manually defrost if needed.

Note: Some modern fridges run more frequently by design, but if temperatures are normal and energy use is acceptable, this may be normal operation.