Important: Refrigerant work is EPA regulated. ProAir Georgetown technicians hold current EPA Section 608 Universal certification. We recover, recycle, and recharge refrigerant according to federal regulations and never vent refrigerants to atmosphere.
Refrigerant Leak Detection & Testing
Professional leak detection using electronic sniffers and UV dye. Find leaks before recharging, or recharge just moves the problem.
High-sensitivity electronic leak detectors locate small leaks in coils, line sets, and fittings that visual inspection misses.
UV dye injection and black light inspection, effective for finding intermittent or slow leaks that evade electronic detection.
Pressure test refrigerant circuits with dry nitrogen to verify leak-free condition before charging new refrigerant.
Refrigerant Service & Recovery
Proper refrigerant recharge, measured by subcooling and superheat, not just pressure gauges. We charge to manufacturer spec.
EPA-compliant refrigerant recovery before any system work requiring circuit opening.
Deep vacuum pull to remove moisture and non-condensables before refrigerant charge, critical for system longevity.
Extended deep vacuum to achieve proper micron levels, we don't rush this step that protects compressor life.
Convert systems from discontinued refrigerants to approved drop-in or replacement refrigerants.
Line Set Service & Repair
Flush contaminated line sets during compressor replacement to prevent new compressor failure from acid or debris.
Professional braze repair of pinhole leaks and joint failures in copper refrigerant lines.
Repair damaged liquid line sections including crimps, kinks, and corrosion failures.
Replace deteriorated suction line insulation, critical for efficiency and preventing condensation in Georgetown's humid summers.
Seal wall and foundation penetrations around line sets to prevent pest entry and air infiltration.
Install locking valve caps to prevent refrigerant theft and unauthorized access to Schrader valves.
Cooling Circuit Components
Replace leaking Schrader valve cores, a small but common source of refrigerant loss over time.
Install or replace liquid line filter driers, required after any system opening to remove moisture and acid.
Replace leaking or damaged service valves on compressors and line set connections.
Replace failed accumulators that protect compressors from liquid refrigerant slugging.
Replace failed thermostatic expansion valves, a hunting or stuck TXV causes refrigerant distribution problems and efficiency loss.
Repair or replace discharge line mufflers that reduce compressor noise and vibration.
Evaporator & Condenser Coil Service
Clean, inspect, and service evaporator coils, dirty coils are a leading cause of reduced cooling capacity in Georgetown homes.
Replace failed or leaking evaporator coils, including proper refrigerant recovery, installation, and recharge.
Straighten bent evaporator fins to restore full airflow through the coil and recover lost capacity.
Clean condenser coils fouled by Georgetown's cottonwood, dust, and debris, critical for summer efficiency.
Repair pinhole leaks and minor damage in condenser coils when full replacement isn't required.
Deep acid wash for severely fouled condenser coils, removes mineral scale, oxidation, and embedded debris.
Address the root cause of a frozen evaporator coil, low refrigerant or restricted airflow. We fix the cause, not just defrost.
Diagnose and repair the refrigerant or airflow condition causing ice formation on copper suction lines.
What a Discharge Muffler Does
A discharge line muffler is installed on the hot gas line leaving the compressor, before the refrigerant reaches the condenser coil. Compressors, particularly reciprocating and some scroll designs, produce pulsations in the discharge gas as they compress refrigerant vapor. Without a muffler, those pulsations travel through the copper line as vibration and noise, and over time they can fatigue braze joints and line set supports. The muffler contains internal baffling or a perforated tube that dampens the pulsation before it propagates through the rest of the refrigerant circuit and into the structure of the home.
A failing muffler typically shows up as a new or worsening vibration or rattling noise from the outdoor unit, sometimes accompanied by a buzzing sound transmitted through the refrigerant lines into the house, especially noticeable in homes on slab foundations where line sets penetrate close to living space and vibration has a direct path indoors. In some cases the muffler itself develops an internal restriction from broken baffle material, which shows up as an abnormal pressure drop across the muffler and reduced system capacity, along with excess compressor discharge temperature since it's working harder to push refrigerant through a partially blocked passage. Left unaddressed, that added strain shortens compressor life.
Diagnosis involves checking discharge pressure and temperature immediately before and after the muffler to confirm whether it's restricted, along with a physical inspection for cracked brazed joints or visible refrigerant oil residue that indicates a leak at the muffler shell. Repair requires recovering refrigerant, cutting out the failed muffler, brazing in a properly sized replacement rated for the system's tonnage and refrigerant type, evacuating the circuit, and recharging to spec. We size mufflers to the specific compressor displacement rather than using a generic universal unit, since an incorrectly sized muffler can introduce its own pressure drop and noise characteristics. Georgetown homes built on slab foundations are common throughout Williamson County subdivisions, and that construction style tends to transmit compressor-side vibration into the home more readily than pier-and-beam construction, which is one reason muffler condition matters more here than homeowners might expect.
Muffler Repair Questions, Georgetown TX
AC Not Cooling? Low Refrigerant?
EPA certified technicians. We find leaks, fix them, then recharge, in that order.