AC, Furnace & Plumbing Services in St. Charles, MO

Completed preventative maintenance cooling tune-up on a 2-year-old Lennox EL18XCV524-230A01 air conditioning system containing 7 lbs 13 oz of R-410A refrigerant. System was operating properly upon arrival and remained in good working condition throughout the service. Performed comprehensive inspection of outdoor condenser unit, verified electrical connections, checked refrigerant charge levels, and confirmed all operational parameters were within manufacturer specifications for the 208/230V unit.

Responded to LED light fixture malfunction with aluminum wiring. Verified and tightened connections at wall switch and traced wiring to junction box in attic where new switches and lights were previously installed. Tightened all connections at junction box to resolve intermittent operation. Recommended light fixture replacement if issues persist.

Replaced failed compressor on Emerald brand outdoor condensing unit and performed thorough cleaning of condenser coils. Unit tested and verified operational upon completion, with all components functioning within manufacturer specifications.

Completed cooling system tune-up on U10 air conditioning unit located at rear of property. Performed comprehensive maintenance including inspection of finned coil assembly, verified proper operation of 40/5 μF dual capacitor, cleaned accumulated debris from condenser coils, and confirmed all electrical connections were secure. Unit tested and operating within normal parameters upon completion.

Completed cooling system tune-up on a single unit located in the side yard. During inspection, discovered significant dust and debris accumulation on evaporator coils and return air grille, which was restricting airflow and reducing system efficiency. Cleaned coils and vents, performed standard maintenance checks, and restored unit to optimal operating condition.

Completed full electrical panel replacement by removing existing main lug panel and installing new breaker panel with all new circuit breakers properly labeled for household circuits including HVAC, kitchen appliances, bathrooms, bedrooms, basement, laundry, and dryer. Updated all bonding and grounding connections to current code standards and installed whole home surge protection device. All electrical work was completed with proper permits and passed required inspections, with before and after documentation photos captured for service records.

Returned to complete installation of wet switch on HVAC system in attic space following initial diagnostic by previous technician. Unit was experiencing no cooling condition, and wet switch was installed to provide proper condensate overflow protection for the air handler. Installation completed successfully, restoring system safety controls and resolving the no cool issue.

Completed preventive maintenance tune-up on outdoor condensing unit located at side of house. Inspection revealed corrosion and staining on evaporator coil fins, documented with photos. All system components checked, unit operating within normal parameters upon completion of service.

Performed complimentary second opinion evaluation on residential air conditioning system less than 10 years old following another contractor's diagnosis of refrigerant leak. Accessed attic-mounted air handler unit and conducted thorough inspection of evaporator coil assembly, refrigerant lines, and system components. Measured supply air temperature at 75.6°F and visually inspected evaporator coil condition through access panel, finding coils clean with proper fin alignment and no visible signs of refrigerant leakage, corrosion, or oil residue that would indicate leak points. Provided findings and recommendations to customer for informed decision-making regarding previously diagnosed issue.

Completed comprehensive cooling system tune-up on 4-year-old ground-level AC unit. Performed full system diagnostics including temperature differential measurements across evaporator coil (supply air reading 51.9°F), electrical testing with digital multimeter showing normal amperage draw of 0.32A, and visual inspection of all components. System operating within manufacturer specifications with no deficiencies noted.

Responded to no cooling complaint on U10 air conditioning unit located at side of home. Upon inspection, diagnosed failed capacitor preventing compressor operation. Replaced defective capacitor with proper OEM specification component, restored system to normal cooling operation, and verified all electrical connections secure.

Responded to service call regarding condensation and moisture buildup on 6-year-old Lennox air conditioning system. Upon arrival, performed diagnostic assessment of indoor air handler and evaporator coil assembly. Measured supply air temperature and humidity levels using digital instrumentation to verify system operating parameters. Inspected condensate drainage system, including drain pan, drain line, and trap for proper function and potential blockages. Examined insulation integrity on refrigerant lines and condensate piping for gaps or deterioration that could cause moisture accumulation. Verified thermostat operation and system cycling at setpoint of 72 degrees. Documented system conditions with photographic evidence showing measurement readings and thermostat display. Identified source of excessive condensation and provided recommendations to customer for preventing future moisture-related corrosion issues on equipment and associated piping.

Replaced defective condenser fan motor (CFM) on residential HVAC unit. Removed failed motor, installed new replacement unit, and verified proper operation. Old part disposed of per standard procedures.

Responded to no cooling complaint and added 1 pound of R-410A refrigerant to the system as previously diagnosed. Used digital gauges to verify proper refrigerant charge and system pressures, restoring cooling operation to the unit.

Responded to no cooling complaint on residential system over 10 years old located in backyard. Upon arrival, performed diagnostic evaluation of unit that was not cooling to setpoint. Inspected condenser unit components including blower motor assembly (model 5KCP39GCY5A25, 1/10 HP, 1110 RPM) and surrounding protective cage structure. Documented equipment condition with photos showing motor specifications and visible discoloration on cylindrical components indicating potential operational issues.

Replaced defective Schrader core on HVAC system and recharged refrigerant to proper operating levels. Removed failed core from service port, installed new core from stock, and added required pounds of refrigerant to restore system capacity. System tested and verified operational upon completion.

Arrived on-site for scheduled service call but job was cancelled after dispatch. Documented existing HVAC system configuration including air handler unit with horizontal slat panels and vertical louvers, along with associated PVC condensate drain piping assembly featuring multiple elbows, foam pipe insulation, and flexible discharge line in utility area. No work performed due to cancellation.

Responded to no cooling complaint on 25-year-old Trane XB13 condensing unit (Model 2TTB3036A1000AA, manufactured April 2008). Performed diagnostic evaluation of outdoor condenser unit, inspected electrical components and refrigerant system operation, and documented equipment condition with photos for customer records.

Responded to no cooling complaint on 6-year-old Trane system (Model 4TTR3030H1000NA). Upon inspection, found outdoor condenser coil heavily clogged with dirt, debris, and contamination causing severely restricted airflow and loss of cooling capacity. Thoroughly cleaned condenser coil, restored proper airflow, verified system operation, and confirmed unit cooling effectively. Advised customer on importance of regular maintenance to prevent future efficiency issues.

Responded to no-cooling complaint on single outdoor condensing unit. Upon arrival, found extensive dirt, dust, and debris accumulation throughout the exterior grille louvers and internal coil assembly, severely restricting airflow and heat transfer capability. The evaporator coil fins were completely clogged with tan-colored contamination, and copper refrigerant lines showed heavy dust coating. Customer had been advised to shut system off due to excessive condensation on indoor unit, which was consistent with reduced airflow causing coil icing. Documented existing conditions with photographs showing the extent of contamination on both exterior vents and internal components, confirming the unit required professional cleaning to restore proper operation and resolve the no-cooling condition.