HVAC Problems & Troubleshooting
Something wrong with your heating or cooling system? Find your issue below for guidance on what to check and when to call for professional help.
Emergency Issues
These issues require immediate attention. If you experience any of these, take safety precautions first.
Gas Smell from Furnace
Odor of natural gas around furnace or in home.
Carbon Monoxide Concerns
Carbon monoxide detector alerts or symptoms suggesting CO presence.
Emergency Line: (650) 540-7205
Available 24/7 for urgent HVAC emergencies
Common Issues Needing Prompt Attention
These problems should be addressed soon to prevent further damage or discomfort.
AC Not Cooling
Air conditioner running but not producing cold air or keeping up with temperature.
Furnace Not Heating
Furnace not producing heat or failing to maintain temperature.
Strange HVAC Noises
Unusual sounds from heating or cooling equipment indicating potential problems.
System Short Cycling
HVAC system turning on and off frequently without completing full cycles.
Frozen AC Coils
Ice formation on evaporator coil or refrigerant lines preventing proper cooling.
Water Leaks from HVAC
Water dripping or pooling around indoor HVAC equipment.
Other Common Issues
Weak Airflow from Vents
Reduced air flow from supply vents affecting comfort and system performance.
View solutionsUneven Temperatures Between Rooms
Some rooms significantly warmer or cooler than others despite system running.
View solutionsHigh Energy Bills
Unexpectedly high utility costs from heating or cooling operation.
View solutionsMusty Odors from HVAC
Unpleasant musty or moldy smells when HVAC system runs.
View solutionsThermostat Problems
Thermostat not functioning correctly or controlling system properly.
View solutionsWhen to Call a Professional
Some HVAC problems have simple solutions you can try yourself. Checking the thermostat, replacing a dirty filter, or resetting a tripped breaker often resolves issues. Our troubleshooting guides explain what to check first.
However, HVAC systems involve electricity, gas, refrigerants, and complex components. If DIY checks do not resolve the problem, or if you see signs of something more serious, professional diagnosis prevents further damage and ensures safety.
Not sure whether your issue needs professional help? Call us at (650) 540-7205 and describe what is happening. We can often help you determine next steps over the phone.
Ready to Get Started?
Contact us today for expert HVAC service throughout the Bay Area.