HVAC Services for Heating and Cooling – Oak Park, IL

Responded to callback for recurring frozen evaporator coil on recently installed HVAC system. Performed comprehensive diagnostic testing using manifold gauges and digital thermometer to verify refrigerant charge levels, superheat, and subcooling measurements. Identified airflow restriction issues and inspected line set insulation integrity in crawl space area. Corrected system deficiencies, verified proper operation, and restored cooling functionality.

Technician completed an HVAC estimate for air conditioning system replacement on a 2017 first-floor unit with easy accessibility. The existing condenser unit showed signs of age and weathering, located on a concrete pad along the exterior wall with standard refrigerant line connections. Assessment included evaluation of repair versus replacement options for the aging system.

Completed return visit to perform UV leak test on outdoor refrigerant line set. Inspection revealed significant corrosion and oxidation on exposed copper piping with visible moisture accumulation on pipe insulation and fittings. Documented conditions with photographs showing corroded copper with black discoloration and water droplets throughout the system, indicating potential leak source requiring further evaluation or repair.

Completed courtesy check on Bosch air conditioning system and air handler per maintenance agreement terms. Inspected outdoor condenser unit, indoor air handler, and verified thermostat operation. All components found operating within normal parameters with no immediate service needs identified at time of visit.

Completed maintenance agreement transfer for air conditioning system relocated from previous address. Documented existing equipment installation including ductwork in basement/crawl space area and outdoor condensing unit with capacitor and electrical connections. Photos captured for equipment verification and system registration update purposes.

Completed preventive maintenance agreement service on residential HVAC system. Replaced two air conditioning system filters with new 20x25x1 and 16x25x1 filters as specified. Inspected electrical components including dual-run capacitor rated at 45/5µF 440VAC and contactor assembly, confirming proper connections and secure wire terminations. Verified all mechanical and plumbing components in utility room, documented system condition with photographic evidence showing proper installation and component labeling.

Completed full air conditioning system replacement including outdoor condenser unit and indoor evaporator coil. Installed new condenser on existing concrete pad in exterior location, ensuring proper clearances and secure mounting. Replaced indoor coil component to match new system specifications. Connected refrigerant lines, verified electrical connections, and confirmed thermostat communication with new equipment. System tested and operating within manufacturer specifications at completion.

Completed cooling cycle air conditioning general service maintenance per agreement terms. Verified thermostat operation displaying 89°F and proper communication with HVAC system. Inspected outdoor condensing unit with cover removed, checked all electrical connections, capacitor condition, and compressor motor components. All wiring connections secure with proper color coding intact, capacitor tested within specifications, and unit operating normally with no deficiencies noted.

Conducted comprehensive assessment of aging residential HVAC system for replacement estimate. Evaluated existing outdoor condensing unit and Space Pak high-velocity air conditioning system, both exceeding 15 years of service life. Inspected condenser unit exterior condition, refrigerant line set routing, and electrical connections. Documented current thermostat configuration showing Braeburn digital control unit. Photographed equipment placement, copper line set condition showing oxidation typical of aged installations, and gravel pad foundation supporting outdoor unit. Provided property owner with detailed replacement options for complete system upgrade including new condensing unit and Space Pak equipment to restore efficient climate control operation.

Conducted onsite inspection of existing attic-mounted HVAC system to assess replacement requirements. Evaluated current air handler unit, flexible ductwork configuration, and associated drainage systems including PVC condensate lines. Documented equipment condition, noting aged installation with disturbed insulation and existing duct connections. Photographed attic installation layout including equipment positioning, ductwork routing, electrical connections, and clearance requirements for replacement planning. Provided comprehensive free estimate for complete AC unit replacement based on inspection findings.

Returned to property to complete refrigerant leak search using electronic leak detector on split system air conditioning unit. Accessed outdoor condenser unit and indoor evaporator coil compartment to systematically test all refrigerant lines, fittings, and brazed connections. Utilized recovery equipment and manifold gauges to isolate system components during leak detection process. Inspected all accessible copper refrigerant lines, service valves, and brass fittings for potential leak points while monitoring detector response.

Performed comprehensive cleaning and maintenance on two air conditioning systems and air handlers following construction activity that resulted in heavy dust accumulation throughout the HVAC equipment. Replaced two 16x20x1 disposable filters and cleaned one washable filter, all of which showed significant construction debris buildup. Conducted thorough inspection of attic-mounted Trane air handler unit, removing accumulated dust and particulate matter from exterior surfaces and accessible components. Additionally, inspected boiler and radiator heating system in response to recent radiator installation work and customer concern regarding potential water leak near floor level. Evaluated piping connections, radiator installations, and surrounding areas to determine source of moisture and assess whether discharge was intentional drainage by design or unintended leak requiring repair. Documented equipment conditions through photography for service records.

Responded to no-power issue on recently installed AC unit with thermostat displaying no power. Upon inspection, verified proper installation of evaporator coil, refrigerant lines, and ductwork connections in air handler unit. Traced electrical circuit, identified and resolved power supply issue restoring functionality to thermostat and system operation.

Completed routine HVAC maintenance agreement service on Carrier split system. Performed comprehensive cleaning and inspection of outdoor condenser unit and indoor air handler. Replaced 20x25x1 air filter at air handler location. Inspected condenser coil fins, verified proper airflow, and checked electrical connections at outdoor unit. Examined control board wiring and electrical components inside air handler cabinet, confirming all connections secure and system operating within normal parameters. Discussed previously recommended thermostat upgrade options with customer who expressed continued interest in replacement.

Conducted comprehensive assessment of existing HVAC system for heating unit replacement at residential property. Evaluated current Rheem furnace installation located in basement utility area alongside water heater. Performed dimensional measurements of outdoor air conditioning equipment to ensure proper sizing compatibility for new system installation. Documented existing equipment configuration including PVC venting, copper refrigerant lines, and current furnace placement within confined utility space. Prepared detailed replacement estimate for two heating units with equipment options. Presented GOOD tier Carrier gas furnace option rated at up to 80% nominal AFUE efficiency and BEST tier Carrier gas furnace option also rated at up to 80% nominal AFUE efficiency. Reviewed existing utility room layout constraints including carpeted flooring, adjacent cabinetry, and current piping configurations to determine installation requirements. Assessed venting pathways and utility connections fo

Completed comprehensive cooling system maintenance inspection per service agreement. Accessed outdoor condensing unit control board and electrical components, verified proper operation of circuit board and connections. Measured supply air temperature at air handler, recorded 63.6°F reading. All system components operating within normal parameters at time of inspection, no refrigerant issues detected.

Returned to property to complete warranty repair by replacing defective control board. Removed failed circuit board from HVAC unit and installed new warranty replacement part. Verified all wire connections were properly transferred to new board, including terminal block connections and multi-conductor ribbon cables. Tested system operation to confirm proper functionality of new control board. Unit now operating within normal parameters.

Provided estimate for mini split installation to add cooling capacity to residential property currently served by boiler heating system only. Assessed exterior side yard location for outdoor condenser placement and verified electrical panel capacity to support new system installation.

Responded to service call for recurring fuse failure on recently installed Unico air handler. Performed comprehensive electrical diagnostics using clamp meter and multimeter to isolate the fault. Testing confirmed short circuit in existing low voltage control wiring between thermostat and air handler. Original installation utilized existing low voltage wire, which was determined to be damaged and causing intermittent short to ground. Ran new 18/8 thermostat wire from air handler location to thermostat, replacing compromised conductor. Secured and properly supported new wire run per manufacturer specifications. Tested all control circuits for proper voltage and continuity. Verified system operation through complete heating and cooling cycles with no fuse failures. Unit now operating within normal parameters.

Performed comprehensive maintenance on air conditioning system and air handler as part of agreement service. Conducted complete system inspection including thermostat functionality verification, ductwork assessment in attic space, and equipment operational checks. System currently operating at setpoint with thermostat displaying proper temperature readings. Noted previous recommendation for refrigerant evaluation from last service visit; will continue monitoring system performance. All accessible components inspected and found to be functioning within normal parameters at time of service.