Heating & Cooling Services in Chicago, IL

Conducted pre-installation site survey to assess HVAC system installation requirements. Documented and measured existing ductwork dimensions and clearances in attic space, including metal supply plenum and flexible duct connections. Measured metal surfaces and duct junction boxes to verify proper sizing for upcoming equipment installation, capturing detailed measurements ranging from 2-9 inches on metal components and 24-30 inches across ductwork sections to ensure accurate equipment fit and code compliance.

Responded to no cooling complaint on 9-year-old first floor unit. Found thermostat calling for cooling with setpoint at 69°F and current temperature at 75°F, but system not producing cold air. Inspected control board wiring and terminal connections at air handler, verified proper wire placement and secure connections to control board terminals and contactor relay.

Responded to callback for non-functioning air conditioning system on 20-year-old XB13 unit (Model CTT63030A1000AA, manufactured 2/2006). Previous technician had replaced dual capacitor during initial visit with no recommendation for system replacement. Upon arrival, performed diagnostic evaluation of outdoor condensing unit and verified proper electrical connections at terminal block. Inspected wire terminations, confirmed secure connections on all conductors, and verified proper voltage supply to unit. Documented equipment nameplate specifications and current system condition. System restored to operational status. Given age of equipment and previous service history, advised customer of potential need for future replacement considerations.

Responded to service call for reported water leak from condensate pump attached to furnace. Upon arrival, performed visual inspection of HVAC system and associated components in basement utility area. Examined furnace installation, ductwork connections, and plenum assembly mounted against foundation wall. Inspected condensate pump and drainage system for signs of active leakage, loose connections, or component failure. Documented existing equipment configuration and condition with photographs showing metal ductwork, plenum box, and HVAC system installation. Collected standard dispatch fee and explained diagnostic process to customer. Discussed available repair options and provided recommendations for addressing the water leak issue. Reviewed new customer discount eligibility and presented information regarding preventative maintenance comfort plan enrollment. Recorded all equipment model numbers and specifications for service records.

Responded to no cooling condition affecting second floor zone. Diagnosed failed wireless relay system preventing proper communication between thermostats and rooftop HVAC unit. Replaced all three wireless relays with hardwired relay configuration, installing new weatherproof junction boxes, transformers, and control relays to ensure reliable zone control. Verified proper operation of Aprilaire thermostats controlling second and third floor zones, confirmed cooling cycle engagement, and tested system communication with rooftop Lennox condensing unit. All zones now operating correctly with proper temperature control and scheduling functions restored.

Responded to service call for malfunctioning thermostat. Upon arrival, evaluated smart programmable thermostat and verified proper communication with HVAC system located in utility closet. Confirmed thermostat display functioning correctly, showing current temperature of 72°F with programmed schedule active until 1:30 pm setpoint of 67°F. Tested system operation, checked wiring connections at thermostat and furnace terminal board, and verified proper system response to temperature calls. Documented equipment information including furnace unit and water heater in mechanical closet, photographed installation for service records, presented maintenance plan options, and discussed available promotions for new customers.

Conducted site assessment for boiler system estimate in older building with bathroom radiator installation. Documented existing conditions including access opening in first floor with exposed plumbing connections, two half-inch supply tubes extending from radiator unit, and layered flooring installation over original tile. Photographed significant mold growth on HVAC ductwork and ceiling surfaces indicating moisture intrusion issues, as well as plumbing access point showing discoloration and staining requiring attention during any future radiator work.

Responded to service call for 18-year-old HVAC system with failed capacitor. Upon inspection, found original JARD capacitor exhibiting significant corrosion and rust on terminal connections, indicating end of service life. Disconnected power to condensing unit, removed deteriorated capacitor, and installed new TITAN PRO TRCFD455 replacement capacitor with proper electrical specifications. Verified all wire connections were secure to capacitor terminals and contactor. Restored power, tested system operation, and confirmed proper startup and cooling cycle functionality.

Completed Comfort Plan Clean and Check maintenance on a 24-year-old outdoor air conditioning unit. Performed comprehensive system inspection including electrical components, capacitor, contactor, and thermostat operation. Identified heavy dirt and debris accumulation on evaporator coils requiring attention. Verified Nest thermostat functionality with system set to cool at 72 degrees and operating properly. Collected payment for Comfort Plan renewal.

Completed comprehensive HVAC maintenance estimate for 12-unit condominium building including both common area and individual unit systems. Assessed main building system mounted on exterior wall requiring elevated access, along with individual HVAC units located in each unit's utility closet. Documented existing equipment conditions including rooftop ventilation components, air conditioning units with metal mesh grilles, basement utility room plumbing connections, and individual unit mechanical systems to develop full-service maintenance proposal for building-wide climate control infrastructure.

Removed and properly disposed of existing water heater from basement location. Installed new 40-gallon tanked water heater on cinder blocks in same location, connecting unit to existing gas line, electrical supply, water supply piping, and exhaust chimney piping. Performed complete startup procedures, operational testing, and safety inspection to verify proper function of all components. Unit is covered by 6-year warranty on parts and tank, with 1-year labor warranty included.

Conducted site assessment for mini-split installation at two-flat residential property currently utilizing window AC units. Evaluated existing electrical panel and determined additional breaker capacity will be required to support new mini-split system. Assessed exterior alleyway access between buildings for outdoor condenser unit placement and reviewed conduit routing options for refrigerant lines and electrical connections.

Responded to service call for water heater with extinguished pilot light resulting in no hot water. Upon arrival, inspected tanked water heater unit located in basement utility area against brick wall foundation. Assessed pilot assembly and gas supply system to determine cause of pilot outage. Successfully relit pilot light and verified proper ignition and flame characteristics. Tested thermocouple functionality and gas valve operation to ensure safe and reliable performance. Observed significant green patina corrosion on copper supply lines extending from top of unit, indicating age-related oxidation but not requiring immediate replacement. Confirmed water heater returned to normal operation with adequate hot water production. Unit restored to full service.

Responded to callback for persistent noise issue on west RTU following previous high limit switch replacement. Performed diagnostic inspection of rooftop unit to identify source of operational noise and documented conditions for further assessment and approval of recommended repairs.

Arrived on site and contacted property contact as requested. Performed comprehensive assessment of HVAC system, conducting count and measurements of all supply registers and return air grilles throughout the property. Documented equipment installation including air handler unit with photographic evidence for service records.

Completed summer preventive maintenance and clean and check on one HVAC system per Comfort Plan agreement. Performed comprehensive inspection of outdoor unit, replaced air filter, and verified proper system operation. Tested unit functionality at thermostat inside building, confirming cooling cycle engaged properly with system set to 75°F and maintaining 76°F ambient temperature at time of testing. All components operating within normal parameters upon departure.

Responded to low cooling complaint and performed system diagnostics. Found refrigerant charge low on R-410A system. Located and sealed refrigerant leak, then added 1 pound of R-410A refrigerant to restore proper system charge. Verified supply air temperature of 57.9°F and return air temperature of 23.8°F, confirming adequate system performance and temperature split. System operating within normal parameters upon completion. Documentation photos captured for service records.

Responded to service call for wall-mounted mini-split air handler leaking water onto occupants below. Upon inspection, removed front access panel and found evaporator coil with excessive moisture accumulation and debris buildup on fins. Identified condensate drainage issue causing water to drip from unit instead of properly evacuating through drain line. Inspected condensate drain system including PVC drain line and confirmed blockage preventing proper drainage. Cleared obstruction from condensate line, cleaned evaporator coil assembly, and verified proper water flow through drainage system. Tested unit operation and confirmed condensate now draining correctly with no further leakage into living space.

Responded to no cooling call for 4-year-old residential AC system. Upon arrival, discovered heavily soiled air filter with significant dust and debris accumulation restricting airflow. Replaced dirty filter with new unit to restore proper system operation. Observed moisture staining on basement floor near electrical components and noted corrosion on switch housing, which may require future attention. Advised customer that lack of regular maintenance since 2023 could potentially void manufacturer warranty on 2022 installation. System restored to normal cooling operation with improved airflow throughout residence.

Replaced defective circuit board on Lennox furnace system under warranty coverage. Retrieved replacement board from Lennox distribution center and installed new control board, restoring full system operation. Verified all electrical connections and tested system functionality upon completion.