Heating & Cooling Services in Chicago, IL

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.

Performed a comfort plan clean and check on one heat pump system with a humidifier, inspecting the air handler, blower assembly, and evaporator coil. Found the evaporator coil fins heavily coated with dust and lint, and noted corrosion and oxidation on the copper return bends, as well as loose motor lead wiring hanging at the blower housing that should be secured. Recommend monitoring the coil for refrigerant leaks and addressing the wiring and corrosion at the next opportunity.

Replaced the defective control circuit board in the Dunkirk boiler under warranty, disconnecting and reconnecting all wire harness connectors and verifying secure terminations and proper transformer connections. Inspected the surrounding control compartment wiring and confirmed system operation after installation, and returned the removed board to the office for warranty processing.

Performed a seasonal heating tune-up on the furnace, including inspection of the air handler and verification of supply air temperature with a digital thermometer. Serviced the whole-house humidifier, inspecting the evaporator water panel, which showed heavy mineral scale buildup, and completed cleaning and maintenance of the unit for proper operation.

Performed a Comfort Plan clean and check on a Lennox gas furnace with an attached whole-home humidifier, and visually inspected the adjacent Rheem water heater. Verified furnace operation, PVC condensate and venting connections, and ductwork insulation, and measured supply air temperature at 120°F, within normal range. Equipment showed no signs of frost, ice, rust, or visible damage, and the system was left operating normally.

Performed a comprehensive inspection of the gas furnace and identified a cracked heat exchanger, a safety-related failure that requires equipment replacement. Documented the furnace's condition and the venting configuration, including the flexible flue connection, and noted a heavily sooted chimney cleanout containing significant carbon and ash buildup. Recommended replacement of the furnace and water heater, with the 2009-vintage equipment's age factored into the evaluation, and prepared a replacement estimate for the customer's review.

Performed seasonal Comfort Plan clean and check on the furnace, humidifier, and water heater, including visual inspection of the combustion chamber, heat exchanger area, and burner components. Inspected the humidifier bypass duct and damper assembly, noting a partially closed damper plate and a heavily textured, deteriorated surface surrounding the opening. Observed soot and oxidation on the combustion chamber interior and mounting hardware; systems were checked for proper operation.

Performed annual Comfort Plan clean and check on the furnace and whole-house humidifier. Verified safe operation with a carbon monoxide analyzer, recording 0 PPM, and serviced the AprilAire humidifier, where the HydroCore water panel showed heavy mineral scale buildup that restricts evaporation and should be cleaned or replaced as needed.

Performed a Comfort Plan clean and check on the furnace, water heater, and humidifier, including inspection of the gas valve assembly, wiring, and associated components. Removed and inspected the flame sensor, which showed carbon buildup at the tip, and checked the condition of the attached tubing and fittings, with no frost, rust, or breakage observed.

Performed on-site evaluation and estimate for a dual-fuel system, pairing a new heat pump with the existing gas furnace as backup. Inspected the mechanical closet and confirmed the furnace, plenum, Aprilaire humidifier, condensate/PVC piping, and gas line with shutoff valve are in serviceable condition with no visible damage. Identified deteriorated, cracked foam insulation with surface corrosion on the exterior refrigerant line, and recommended replacing the insulation and line set as part of the installation.

Performed a Comfort Plan clean and check on the furnace and water heater. Removed and inspected the burner assembly and igniter components, then took electrical readings with a clamp meter to verify proper operation. All components were reassembled and tested, with the system operating normally and no damage, rust, or frost observed.

Responded to a callback for continued noise from the rooftop unit. Inspected the blower assembly and found the shaft bearing support bracket loose, with surface rust on the shaft, causing a rattling noise. Secured the loose shaft holder to eliminate the vibration and noise.

Diagnosed a Dunkirk boiler control and ignition fault, using thermal imaging to inspect the control board and wiring harness connections for abnormal heat and loose terminations. Replaced the failed transformer and restored proper low-voltage supply to the control board, then verified normal boiler operation and safe system startup.

Performed a full clean and check on the furnace in response to a no-heat condition, including inspection and cleaning of the flame sensor, which was identified as the likely cause of the failure. Conducted a borescope inspection of the heat exchanger to verify a prior contractor's claim of failure; imagery showed residue buildup at the seam junctions, with no conclusive evidence of a breach. Documented all equipment information and ductwork measurements, and reviewed the findings with the customer on site.

Removed and disposed of the existing forced air furnace and installed a new Lennox SL280UH070V36AK 2-stage, variable-speed furnace, connecting it to the existing supply and return ductwork with the necessary sheet metal transitions, as well as the existing gas, electrical, and exhaust. Installed an Aprilaire 720A powered humidifier on the supply plenum, extended the PVC condensate drain from the existing coil, and installed a new Honeywell thermostat. Started up, tested, and adjusted all equipment for proper operation, completed a safety inspection, and cleaned up all job-related debris.

Performed an on-site assessment of an 11-year-old gas furnace installed in an easily accessible utility closet and confirmed a cracked heat exchanger, which is a safety hazard requiring equipment replacement. Documented the unit, flue connection, plenum, gas piping, and surrounding components with photographs, and provided a written estimate the homeowner can use to compare against other quotes.

Performed a comfort plan clean and check on the furnace and humidifier system, including inspection of the 14x24x1 fiberglass air filter, which was found clean and in serviceable condition. Verified the humidifier control is mounted securely and set to automatic mode, with the wiring properly secured and the surrounding plenum connections intact.

Performed Comfort Plan clean and check on three furnaces, three humidifiers, and one water heater, including combustion analysis with carbon monoxide testing at the flue/vent sampling port and a visual inspection of the water heater's gas supply, venting, and plumbing connections, with no visible leaks, rust, or damage noted. Heat pump mode testing could not be completed due to mild ambient temperatures; a follow-up check is recommended in fall when cooler weather allows.

Installed a new electric heat kit in the air handler, including mounting the fused disconnect/fuse block and control relays and wiring the unit to the low-voltage terminal strip for staged heat operation (W1–W4). Terminal connections and jumpered W1/W2 wiring were inspected and secured, with no signs of damage, corrosion, or loose connections observed.