Heating & Cooling Services in Chicago, IL

Replaced the boiler main shutoff valve, supplying all materials and labor. Isolated and drained the boiler system to allow valve removal and installation, then refilled the system and restored it to normal operation.

Installed an electric duct heater (heat kit) in the supply ductwork with the access panel secured and all safety and certification labels in place. Terminated the pre-run electrical whip to the power distribution block and connected the low-voltage control wiring (W1, W2, C, G, R) to the terminal strip, with wiring secured and no signs of damage, corrosion, or burn marks on the components.

Performed a comfort plan clean and check on the furnace, including inspection and replacement of the 16x25x1 pleated air filter. Removed and cleaned the flame sensor rod to restore reliable flame sensing and proper ignition operation, and inspected the control board wiring, relay connections, and ductwork for security and condition. Noted rust and moisture staining at the base of the cabinet for further monitoring.

Performed seasonal Comfort Plan clean and check on a 7-year-old furnace prior to heating season startup. Inspected the blower assembly and found heavy dust and lint accumulation on the blower wheel blades, then cleaned it to restore proper airflow, and used an inspection camera to examine internal components. No symptoms or safety concerns were reported, and the system was verified ready for heating operation.

Performed a Comfort Plan clean and check on the air handler, inspecting the blower assembly, electrical compartment, cabinet insulation, and condensate drain connection. Found the blower wheel fins heavily loaded with dust and grime, and located a small hole in the cabinet that had been temporarily patched with duct tape; both conditions were reviewed with the homeowner, along with the recommended blower wheel cleaning. No frost or ice was present, and the electrical components showed no visible signs of damage.

Performed boiler maintenance using a maintenance kit, inspecting the combustion chamber and burner assembly and finding heavy rust, scale, and soot deposits on the heat exchanger interior and mounting flange. The flame sensor and igniter rods were found corroded and discolored, indicating degraded components that can cause ignition and flame-sensing faults. Documented findings with photos and recommended service of the affected ignition components and cleaning of the combustion chamber.

Performed a Comfort Plan clean and check on the boiler and water heater. Inspected the heating system's ignition components and cabinet interior, noting a corroded hot surface igniter with a rusted mounting flange and debris and loose hardware in the burner compartment. Conducted a combustion analysis on the Bradford White water heater at the flue, using a calibrated analyzer to verify stack temperature, oxygen, and carbon monoxide readings on natural gas, and inspected the draft hood, flue connection, and piping for proper condition and venting.

Responded to a warranty call for a heat pump cooling in heat mode. Found the control board's "W951 HEAT PUMP" option jumper still intact, leaving the system configured for non-heat-pump operation and preventing reversing valve operation in heating. Heavy frost accumulation was present on the supply plenum, with a measured supply air temperature of 91.5°F on the furnace side. Verified low-voltage wiring and terminal connections (O, Y1, R, C, DS) show no damage, burn marks, or corrosion. Corrected the configuration and restored proper heat pump heating operation, resolving the warranty condition.

Responded to a water leak call on a Carrier air handler and inspected the unit, including the electrical connections, wire nut splices, and foil-taped panel seams. Checked and replaced the 20x25x1 MERV 8 return air filter, and recorded the unit's equipment information. No frost, ice, rust, or visible damage was observed at the time of service.

Performed annual tune-up on a Dunkirk DXL Series 2 boiler (approx. 3 years old). Inspected the combustion chamber access panel and found the gasket torn and deteriorated with gaps along the lower edge, along with heavy white and yellow mineral scale deposits on the interior surfaces, indicating moisture and scaling issues. Also observed crystalline residue and moisture around the basin and drain opening with minor rust at the lower edge, and recommended gasket replacement and further evaluation of the leak source and water conditions.

Responded to a no-heat call on a 10-year-old basement furnace and performed a full diagnostic, inspecting the limit switch and associated wiring at the mounting bracket. Used a borescope to visually inspect internal passages and heat exchanger areas for obstructions or damage that could cause a safety lockout. Findings were documented with photos to support repair recommendations.

Replaced the failed igniter on the Williams wall furnace and verified proper operation. After installation, the burner lit with a stable blue flame, and supply air temperature at the grille was measured at 263.1°F. Surface corrosion was noted on the burner access panel around the fastener points.

Inspected the commercial boiler bank and identified 40 burner clips requiring replacement. The repair was sold, and the replacement clips are being ordered from a supply house, with an anticipated availability of late October. Installation will be scheduled once the parts arrive.

Removed the deteriorated section of half-inch galvanized piping between the 45° elbow and the water heater and repiped it in copper, installing a new tee for the boiler feed connection. Added a half-inch threaded ball valve on the boiler side of the feeder valve to provide isolation for future service, and placed a water leak alarm near the work area for early moisture detection.

Performed a full tune-up on a 22-year-old gas furnace, verifying operation through a firing cycle with a combustion analyzer and inspecting the burner assembly for proper flame characteristics. Measured electrical draw with a true RMS clamp meter and checked the flue, gas valve, and control module connections. The system was found operating properly with no deficiencies noted.

Responded to a no-heat call on an 18-year-old Peerless boiler that was not supplying the downstairs radiant zone. Inspected the boiler, controls, and zone piping, and verified operating temperature and pressure on the combination gauge. Performed repairs to restore heat call response and radiant circulation, and confirmed proper system operation.

Removed and disposed of the existing furnace, A/C condenser, and evaporator coil after reclaiming refrigerant, then installed a new Lennox two-stage variable-speed furnace (EL297UH070XV36BK) and matching EL18KCV-036-230 condensing unit set on a new level pad with a new evaporator coil. Connected the equipment to the existing ductwork, gas, electrical, exhaust, and refrigerant line-set, evacuated the system, and charged it with R-454B. Installed a new thermostat, then started up, tested, and adjusted the system for proper operation, completed a safety inspection, and cleaned up all job-related debris.

Performed a comprehensive clean and check of the furnace, humidifier, water heater, and electronic air cleaner (EAC) as part of a one-system comfort plan maintenance visit. Removed and inspected the metal mesh filters, which were found clean and free of significant buildup, and cleaned the heat exchanger/coil fin surfaces to maintain proper airflow and heat transfer efficiency.

Performed seasonal heating maintenance and tune-up on two furnaces, including cleaning and system checks. Inspected the control module, wiring harness connections, and blower motor compartment, finding connections secure and no visible damage, rust, or corrosion. Used a borescope to inspect internal components in confined areas, documenting the findings with photos.

Performed annual tune-up and inspection on two boilers, evaluating overall system condition and operation. Documented findings of rust staining and accumulated debris and particulate buildup within the combustion/burner compartment, indicating corrosion and the need for cleaning. Also noted a loose, unsecured wire hanging from the flexible conduit at the lower cabinet, with staining on the supporting pallet suggesting possible moisture or residue, and recommended securing the wiring and monitoring for leaks.