Heating & Cooling Services in Chicago, IL

Performed a clean and check on the hydronic heating system, including the boiler and water heater, inspecting the Grundfos ALPHA2 circulator pump for proper operation in AUTO ADAPT mode with the check valve confirmed installed. Inspected the burner compartment, including the flame sensor and igniter assembly, along with the gas valve, wiring, and connections, and noted dust and debris buildup in the lower cabinet section.

Performed an in-home IAQ assessment for a new dehumidifier installation in the basement mechanical area, where no dehumidification system currently exists. Inspected the Rheem gas furnace with supply-mounted humidifier, galvanized trunk and flex ductwork, and wall-mounted tankless water heater, and confirmed available space, duct access, and drain routing for the proposed whole-home dehumidifier installation.

Performed seasonal Comfort Plan clean and check on the Rheem gas furnace, including inspection of the heat exchanger and finned surfaces with a borescope camera, with photos documented. Inspected the system's plastic drain/condensate trap assembly and found no cracks, rust, or frost, confirming the unit is operating normally and ready for the heating season.

Performed scheduled preventive maintenance on two boilers and one rooftop unit (RTU) per the service agreement, inspecting controls, electrical components, and wiring, including the control module, relays, contactors, and capacitor, and observing dust accumulation on the RTU interior and coil surface. Checked boiler temperature and pressure gauge readings, piping, and valve fittings with no leaks, rust, or breakage noted, and installed two new 16x25x2 filters.

Replaced the motorized vent damper (GVD-Z) on the flue vent pipe, along with the control board and transformer, and reconnected the wiring harness and power supply. Components were installed securely with no visible damage, rust, or corrosion at the vent assembly; the system was left with no heat call resolved at the time of service, and further diagnostics are recommended to identify any remaining cause of the no-heat condition.

Performed warranty service on the boiler's control system, diagnosing and addressing a faulty circuit board and verifying proper operation of the boiler temperature controller. Inspected the control panel, confirming the low water, thermostat, high-limit, and burner indicators were functioning, and reviewed internal wiring connections for security and proper termination. System was tested and is operating normally.

Removed the existing furnace and installed a new gas furnace with connections to the supply plenum and return ductwork, then installed a new Aprilaire whole-home humidifier on the supply plenum with drain and water supply connections. Installed a chimney liner to ensure proper venting of combustion gases, and verified system operation after startup.

Performed annual tune-up on the gas furnace, including inspection of the air filter and cabinet interior, and cleaned accumulated dust and debris from internal components and panels. Inspected the flame sensor, removing carbon buildup and residue to restore reliable flame sensing, and verified wiring connections and routing for safe operation. Also checked the humidifier and water heater as part of the comfort plan visit.

Performed a Comfort Plan clean and check on the gas furnace, humidifier, and water heater. Removed the furnace front panel to inspect and clean the blower assembly, burner and manifold area, gas valve and connections, control board wiring, and ductwork connections, clearing accumulated dust and debris from the cabinet. Verified safe operation and overall system condition upon completion.

Evaluated a 10-year-old, 140K BTU Payne gas furnace in the basement mechanical area that was cycling off on its high-limit switch, and assessed the supply ductwork, plenum, flue and condensate drain configuration, and gas piping to determine the cause of the overheating condition. Inspected the adjacent outdoor condensing units and refrigerant line sets, finding no frost, ice, or visible damage. Documented system condition with photographs and prepared a replacement estimate based on the unit's age and recurring limit-trip issue.

Replaced the failed heat exchanger in the upright gas furnace serving the second floor, reconnecting the flue venting, gas, and electrical components and verifying proper furnace operation after installation. The removed heat exchanger was retained for return to the warehouse for warranty processing.

Responded to a recurring no-heat complaint on the boiler/water heater system and inspected the mechanical room, including the wall-mounted tankless unit, PVC venting, circulation pump, valves, expansion tank, and condensate drain line. Visual inspection showed no evident leaks, corrosion, or damage, and a handheld thermometer reading of approximately 73.9°F was recorded for ambient temperature verification; continued troubleshooting of the intermittent fault is required.

Diagnosed a failed run capacitor on a ClimateMaster water-source heat pump and replaced it with a new 35/5 µF dual-run capacitor. Verified secure wiring connections in the control compartment and confirmed proper unit operation following the repair.

Replaced the condensate drain hose on the air handler, securing the new hose to the copper drain stub and PVC drain assembly with hose clamps to restore proper condensate drainage. Observed moisture on the surrounding floor and corrosion on the evaporator coil edge and cabinet floor, indicating prior drain leakage.

Performed a seasonal tune-up on one furnace system, including replacement of the pleated return air filter and a temperature reading at the filter cabinet to verify airflow conditions. Inspected the control board, wiring connections, and ignition components, and removed and inspected the flame sensor to confirm proper flame rectification and safe ignition operation.

Performed a Comfort Plan clean and check on a heat pump system, inspecting the coil assembly, which showed dust and debris accumulation on the fins, and servicing it to restore airflow and heat transfer efficiency. Verified system operation by measuring supply air temperature of 117.3°F in heating mode at the plenum, and confirmed the access panel was properly resealed with foil tape and secured with screws.

Removed the existing 40-gallon tank water heater and installed a new Bradford White 40-gallon gas water heater in the utility closet, using the replacement unit supplied from the shop. Reconnected the gas supply, water lines, and flue venting, then verified the installation was clean, secure, and free of visible leaks or damage.

Replaced the heat exchangers in both high-efficiency American Standard gas furnaces, with the new units supplied through the distributor. The failed heat exchangers were removed from each furnace (serials ending in KM7G and 7N7G) and set aside for warranty processing.

Performed seasonal clean and check maintenance on two heat pump systems, including inspection of air handler interiors, blower assembly, wiring connections, and evaporator coils. Replaced the disposable fiberglass air filter, which showed discoloration from accumulated debris, and verified the evaporator coil was clean with no frost or ice buildup. Confirmed electrical connections and refrigerant line fittings were secure, with both systems operating properly at completion.

Inspected the closet-installed gas furnace after a prior install flag that the unit sits unlevel on an uneven floor, which prevents the access doors from closing properly. Removed the access panel to evaluate the cabinet and door fit, and identified that replacement door clips are required and that the furnace must be raised and leveled to restore proper panel alignment. Internal components, PVC condensate and venting, flue connection, and gas line were visually intact with no signs of rust or leakage.