Qualified HVAC Repair in Chantilly, VA 20151 - PHI Air Comfort LLC

Yes, that's a common problem here, especially with our temperature swings. The reversing valve directs refrigerant flow to switch between heating and cooling modes. If it's stuck or failing, your system won't change modes correctly. Our technicians can diagnose this quickly—often it needs cleaning, repair, or replacement. We recommend addressing it promptly to avoid further strain on your heat pump.

Chantilly's intense summer heat and humidity can overwhelm older or poorly maintained AC units. Common causes include refrigerant leaks, dirty coils, clogged filters, or an undersized system. We perform thorough inspections to identify the root cause—whether it's a simple fix like cleaning or a more complex issue like recharging refrigerant. Regular maintenance before summer helps prevent these breakdowns.

We provide comprehensive HVAC services tailored to our climate: repair for immediate issues like reversing valve failures or AC cooling loss, preventive maintenance to catch problems early, and installations of energy-efficient systems sized for Chantilly homes. Our maintenance plans include coil cleaning, refrigerant checks, and system testing to keep your unit running smoothly through summer heat and winter chills.