Home Comfort Planner
Decision guide — not a replacement for emergency services
When to Call HVAC Help
A clear guide for deciding who to call — HVAC technician, licensed electrician, landlord, utility provider, or emergency services. This does not replace professional assessment.
Emergency — Call Now If Any of These Apply
- • Gas smell — leave the building, call your gas utility and emergency services
- • Carbon monoxide alarm — leave immediately, call emergency services
- • Smoke or fire — leave, call 911
- • Sparks or shock — do not touch, call emergency services or licensed electrician
- • Water near electrical equipment — do not touch, call qualified help
- • Extreme heat or cold creating health or medical device risk — call emergency services if needed
Knowing who to call can be confusing. HVAC, electrician, landlord, utility — this guide helps you decide without guessing.
Step 1: Check Warning Signs
Step 2: Your Situation
When to Call HVAC Help Checklist
0/12CALL 911 or emergency services for gas smell, CO alarm, smoke, sparks, or shock
CALL GAS UTILITY for gas smell — leave the building first
CALL LICENSED ELECTRICIAN for sparks, shock, repeated breaker trips, or exposed wiring
CALL QUALIFIED HVAC TECHNICIAN for no cooling, no heat, refrigerant concern, frozen coil, loud noise, water leak from unit
CONTACT LANDLORD / BUILDING MANAGEMENT if you are a renter — document in writing
Tell the technician: when it started, rooms affected, thermostat setting, unit type, noises, smells, visible water
Do NOT open equipment panels, electrical panels, or refrigerant service ports
Do NOT reset a repeatedly tripping breaker — call a licensed electrician
Do NOT use stove/oven for heat — carbon monoxide risk
Do NOT run generator indoors or in garage — fatal CO risk
Do NOT handle refrigerant — call qualified HVAC help
Take photos only if safe — never approach sparks, smoke, or electrical hazard
This tool is for general planning and educational guidance only. Measurements, materials, codes, product coverage, installation conditions, and safety requirements can vary. Always verify details before purchasing or beginning work. For electrical, plumbing, gas, structural, roofing, HVAC, code-related, or unsafe conditions, contact a qualified professional.
Know When to Call a Pro
- ▸Gas smell, CO alarm, smoke, sparks, shock — emergency services now
- ▸No cooling or no heat — qualified HVAC technician
- ▸Refrigerant concern — do not handle, call HVAC technician
- ▸Sparks or shock — licensed electrician
- ▸Renter with HVAC problem — contact landlord in writing