Vestfrost refrigerator shows E15; audible alarm may sound and cooling may stop.

Safety: No immediate electrical hazard, but avoid leaving doors open for long periods.

Steps to respond to E15 (high temperature):

• Check door closure and seals: Ensure all doors are fully closed and gaskets are sealing properly. Remove items blocking closure.
• Allow recovery time: If a large amount of warm food was recently added or the door was left open, allow 12–24 hours for temperatures to stabilize.
• Monitor compressor and fans: Confirm that the compressor and both evaporator and condenser fans are running when cooling is demanded.
• Check for frost buildup: Inspect the freezer for heavy ice on the back wall, which may indicate a defrost problem.
• Sensor check: If E15 persists despite normal operation, test the temperature sensors (NTCs) as described for E1/E2 and replace if out of range.
• Refrigerant/system issues: If the unit runs continuously but cannot reach set temperatures, a sealed system problem (leak, restriction, weak compressor) may exist and requires a certified technician.

Important: Do not ignore prolonged high temperature alarms; food safety can be compromised.