Keeping your home cooler during extreme heat
Reduce avoidable heat indoors, monitor conditions, and arrange help if cooling changes. Do not treat a hot home as safe simply because the air conditioner is running.
A “20-degree rule” cannot diagnose your AC
The difference between outdoor and indoor temperature is not a universal limit for home air conditioning. A technician considers the equipment, airflow, indoor and outdoor conditions, and the building. If the home will not cool, describe the change and request a diagnosis rather than assuming it is normal.
Reduce extra heat without unsafe DIY work
- Close blinds or curtains where direct sun enters.
- Limit heat-producing indoor appliance use when practical.
- Keep registers and return grilles clear.
- Use the thermostat and accessible filter according to the equipment instructions.
- Keep water away from electrical equipment. Do not hose equipment, open service panels, or put water in front of a plug-in fan as an HVAC fix.
Do not use an oven or grill indoors as an alternative appliance or bring outdoor cooking equipment inside.
Use official heat resources
If you cannot stay safely cool at home, check Fresno County’s current cooling-center information and confirm the location is open before traveling. Suspected heat stroke is a medical emergency: call 911. CDC’s heat-illness guidance gives warning signs and first-aid information.
Request AC help
A repair diagnosis has a visit charge. Read what a repair visit costs for the first-hour charge, additional time, parts, after-hours rates, and travel charges. The technician explains repair options and costs before you approve repair work.
Tell the office if the system has stopped, when cooling changed, and your city. Staff confirms an appointment. Use an open cooling location or emergency services when needed rather than waiting in unsafe heat.
