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Tips & Advice6 min read

HVAC Emergency? What to Do When Your System Fails

Steps to take when your heating or cooling fails, plus when to call for emergency service.

When your HVAC fails during extreme weather, quick action can prevent damage and restore comfort faster.

Immediate Steps

For AC Failure (Hot Weather) 1. Check thermostat settings 2. Check circuit breaker 3. Check/replace air filter 4. Move to coolest room 5. Use fans, open windows if outdoor temp allows 6. Stay hydrated

For Heating Failure (Cold Weather) 1. Check thermostat settings 2. Check circuit breaker 3. Check gas supply (other appliances working?) 4. Check air filter 5. Layer clothing, use blankets 6. **If you smell gas, leave immediately and call 911**

Safety Priorities

Heating Emergencies - Carbon monoxide detectors working? - Any gas smell? (Leave immediately) - Elderly, infants, or pets at risk?

Cooling Emergencies - Signs of heat exhaustion? - Vulnerable family members? - Medication requiring cool storage?

When to Call Emergency Service

Call Now - Gas smell or suspected leak - CO detector alarming - Complete system failure in extreme weather - Vulnerable household members - Burning smell from equipment

Can Wait Until Morning - Reduced but not zero output - Mild weather - Alternative heating/cooling available - Household can stay comfortable

Temporary Comfort Solutions

Cooling - Portable AC units - Fans (ceiling and portable) - Cool towels - Close blinds - Visit air-conditioned spaces

Heating - Space heaters (use safely!) - Layer clothing - Seal drafts - Use oven for warmth (never gas stovetop) - Visit heated spaces

Preventing Emergencies

Regular Maintenance - Annual professional tune-ups - Monthly filter checks - Address small issues promptly

Emergency Planning - Know your HVAC company's emergency number - Have backup heating/cooling options - Keep flashlights accessible - Know gas shutoff location

Finding Emergency Service

What to Ask - Is 24/7 service available? - What are emergency rates? - How soon can you arrive? - Is there a diagnostic fee?

Bay Area Resources - Save your regular HVAC company's number - Know where cooling/warming centers are - Have backup plan for vulnerable family members

After the Emergency

  • Get permanent repair scheduled
  • Document what happened
  • Review maintenance schedule
  • Consider system upgrade if failures are frequent

Don't wait for an emergency to find a reliable HVAC company. Establish a relationship now so you have someone to call when you need them.

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