HVAC Troubleshooting in Northern Virginia

If your AC is running but not cooling, start with a few quick checks, then schedule service. Parrish Services provides 24/7 emergency HVAC diagnostics and repair, including refrigerant leak and system failure issues. We serve Northern Virginia, including Reston.

Quick checks:

• Set thermostat to Cool and lower the setpoint.
• Replace a dirty filter.
• Clear debris around the outdoor unit for airflow.
• Check the breaker and accessible wiring for issues.
• Look for ice on lines or unusual noises.
• Open supply and return vents. If problems persist, our certified technicians can diagnose and repair. We recommend twice‑yearly maintenance to prevent issues.

Updated: 2025-12-31 00:00:00

Need help in Remington, VA? Call (571)-650-1016 or book online.

The “$5,000 rule” isn’t defined by Parrish Services, and we don’t use a one-size-fits-all threshold. We inspect your system and compare repair cost, system age and condition, efficiency, parts availability, and warranty options to recommend repair or replacement. A certified technician diagnoses the issue, provides written options, and confirms pricing on site. We’re available 24/7 for emergencies, back HVAC work with warranties, and offer Priority Service Plans with up to 15% off. We serve homeowners in Reston, VA and nearby areas.

Updated: 2025-12-31 00:00:00

Need help in Remington, VA? Call (571)-650-1016 or book online.

Most thermostat issues come from power, settings, or communication problems. Start by checking mode (Heat/Cool), fan setting (Auto), and that the setpoint is above/below room temperature. Replace the batteries. Confirm schedules aren’t overriding your setting. Check the HVAC breaker is on. For smart thermostats, verify Wi‑Fi and that it’s not in Away/Eco. If the display is blank or the system still won’t start, the fault may be at the HVAC equipment or thermostat wiring, which needs diagnostics.

Updated: 2025-12-31 00:00:00

Need help in Reston, VA? Call (571)-650-1016 or book online.

AC repair pricing varies by the problem and parts required. A Parrish technician will diagnose the issue first and confirm the total cost on site before work begins. We provide 24/7 emergency service with no overtime rates for after-hours work. Priority Service Plan members receive up to 15% off all services. We back HVAC repairs with warranties and guarantees. We serve Northern Virginia communities like Reston and Fairfax.

Quick checks we use to scope cost:

• Diagnostic inspection of the system.
• Parts and refrigerant needs.
• Repair complexity and time.

Updated: 2025-12-31

Need help in Remington, VA? Call (571)-650-1016 or book online.