Freezer constantly running and never seems to switch off, though temperature is acceptable.

Safety first: Always unplug before defrosting with tools or accessing internal components.

• Check ambient conditions: Ensure the freezer is not installed in a very hot room or next to heat sources. Bush freezers are typically rated for specific climate classes.
• Inspect door gasket: Close a sheet of paper in the door and pull it out. If it slides easily with little resistance, the gasket may not be sealing. Replace the door gasket if cracked or deformed.
• Defrost evaporator: If there is heavy frost on the evaporator cover, perform a full manual defrost: empty the freezer, unplug it, and allow all ice to melt. Clean and dry before restarting.

If the freezer still runs continuously with good seals and no frost, the thermostat or control board may be misregulating and should be checked.