HVAC Repair, Heating & Maintenance in Orange County
A2Z Appliance Clinic keeps Orange County homes comfortable year-round with HVAC repair, gas furnace and heat pump service, and seasonal tune-ups. We service split systems, packaged rooftop units, and ductless systems for all major residential HVAC equipment.
Common hvac problems
- Furnace not turning on or blowing cold air
- Heat pump stuck in one mode or not switching
- Thermostat not communicating with the system
- Uneven temperatures between rooms
- System cycling too often or running constantly
- Unusually high electric or gas bills
- Rattling, banging, or whistling from ducts or the air handler
- Pilot light or ignition problems
Repairs we perform
- Furnace igniter, flame sensor, and gas valve repair
- Heat pump reversing valve and defrost board service
- Blower motor and ECM motor replacement
- Control board and thermostat wiring repair
- Seasonal tune-ups: coil cleaning, refrigerant check, electrical test
- Duct leak inspection and airflow balancing
- Filter, UV light, and indoor air quality add-ons
What to expect from your visit.
Call or book. Tell us the brand, the model number if you have it, and what the unit is doing. We schedule a window, and same-day service is available across Orange County.
Diagnose. The technician tests the unit, identifies the failed part and gives you a written quote. The diagnostic fee is applied toward the repair when you approve it.
Repair. We carry common hvac parts on the truck, so most jobs finish in the same visit. If a part has to be ordered we return with it at no extra trip charge.
Guarantee. Every HVAC repair is backed by our parts and labor warranty.
Available in Aliso Viejo, Laguna Niguel, Laguna Hills, Mission Viejo, Irvine, Laguna Beach, Newport Beach, Dana Point, San Clemente, Foothill Ranch, Lake Forest, Rancho Santa Margarita and every other community on our Orange County service areas page.
HVAC repair by city
Brands we specialize in
HVAC Repair & Maintenance questions.
How often should I have my HVAC system serviced in Orange County?
Twice a year: an AC tune-up in spring before the first heat wave and a heating check in fall. Coastal Orange County homes also benefit from annual condenser coil cleaning because salt air corrodes fins faster than inland.
What is the difference between AC repair and HVAC repair?
AC repair covers the cooling side only. HVAC repair covers the whole system, cooling, heating (furnace or heat pump), the air handler, ductwork, and thermostat controls. A2Z Appliance Clinic handles both under one call.
Are your HVAC technicians licensed and certified?
Our technicians hold EPA Section 608 certification for refrigerant handling and are trained on gas and electric heating systems. Ask for our current license number when booking.
Need HVAC repair today?
Same-day windows available across Orange County.