TemperatureHighCritical #

Meaning #

The temperature in a room has exceeded 30 degrees Celsius for the past 30 minutes. This is a critical threshold requiring immediate action to prevent health risks and equipment damage.

Impact #

Temperature above 30 degrees Celsius poses immediate health risks to occupants, including heat exhaustion and heatstroke. Electronic equipment may also throttle performance or shut down to prevent overheating.

Diagnosis #

Check the current temperature readings from all Shelly H&T sensors:

shellyht_temperature_celsius

Identify which specific rooms or sensors are affected:

kubectl get pods -n iot -l app.kubernetes.io/name=shelly-ht-monitor -o yaml

Look for any recent events that may have caused the spike, such as HVAC failures, windows left open in direct sunlight, or heat-generating equipment running nearby.

Mitigation #

Open windows immediately to improve ventilation. If outdoor temperature is also high, use air conditioning or fans to reduce indoor temperature.

Check for HVAC system failures or malfunctions that may be causing the spike. If the issue is due to external weather conditions, keep windows closed and run air conditioning until temperature normalizes. Consider relocating heat-generating equipment or adding additional cooling.