Heating & Cooling Services in Chicago, IL

Returned to the site to install a custom 20x30 galvanized drain pan beneath the unit and re-leveled the air handler using a spirit level to ensure proper alignment and condensate drainage. Inspected the unit, ductwork, and condensate line for the source of the reported whistling noise, with no visible damage, rust, or frost observed.

Performed annual tune-up and inspection on one gas-fired heating system, including a visual inspection of the gas supply piping, gas valve, burner assembly, and control wiring. Verified the combination temperature/pressure gauge reading and system operation, and noted dust and discoloration on the burners, corrosion at the gas piping joints, and loose wiring near the burner area for continued monitoring.

Performed a tune-up on a two-system HVAC installation, including inspection of the furnace and testing of the flame sensor with a clamp meter to verify proper flame rectification current. Noted visible rust and corrosion on the lower furnace cabinet panel and soiled burner/igniter components, and inspected the condensate drain and pump assembly, wiring, and venting connections for proper operation.

Replaced the FB-38A component on the Weil-McLain hydronic boiler as part of a sold repair. After installation, verified system pressure of approximately 20–30 psi and operating temperature of roughly 180–200°F at the combination pressure/temperature gauge, confirming normal boiler operation with the circulator and expansion tank properly connected.

Performed a seasonal tune-up on the hydronic boiler system, inspecting the boiler cabinet, circulator pump, isolation valves, supply and return piping, and expansion tank for proper operation. Observed corrosion, mineral buildup, and paint deterioration on the circulator pump and adjacent copper fittings, which should be monitored for future leaks or pump wear. System components were verified in service, and the mechanical area was left accessible for continued maintenance.

Responded to a heating complaint on a gas-fired furnace with a reported intermittent or non-functioning heat condition. Inspected the burner compartment, gas valve, inducer motor assembly, electrical junction, and wiring harness, and verified the flue, condensate drain, and refrigerant line connections for proper condition. Performed diagnostics and the necessary repairs to restore heating operation, and confirmed the furnace was cycling and operating correctly at completion.

Responded to a callback for a hydronic heating system with approximately half of the radiators failing to heat. Inspected the mechanical room piping, expansion tanks, and associated valves and fittings, then bled the affected radiators to purge trapped air and restore proper hot water circulation. Verified system components showed no signs of leaks, ice, or heavy corrosion, and confirmed heat output returned to the radiators.

Performed an on-site evaluation for a hydronic boiler replacement at an existing Burnham boiler installation, inspecting the unit, flue/draft hood, relief valve, supply and return piping, and drain assembly. Noted corrosion and discoloration at pipe fittings and staining on the boiler casing, and took measurements of the mechanical space and surrounding piping to confirm clearances and sizing for the replacement unit.

Responded to a no-heat call following recent maintenance and inspected the gas furnace cabinet, finding heavy lint and dust buildup around the internal wiring and components, along with loose and disorganized low-voltage wiring connections. Cleaned the debris, verified wire terminations and the pressure switch and limit switch circuits, and confirmed the burners ignite with a stable flame and the inducer and blower operate properly. Furnace is now producing heat and cycling normally.

Responded to a water leak call on a hydronic boiler system and inspected the visible piping, including the black iron supply and return lines with isolation ball valve, copper piping, expansion tank, and system pressure gauge. Verified the expansion tank was properly strapped and mounted, and checked all connections and fittings for active leaks and signs of moisture or corrosion.

Responded to a callback for a recurring boiler leak and inspected the boiler piping, expansion tank, and associated valve and fitting assemblies. Documented wet residue and corrosion at the threaded pipe unions and discoloration at the copper fitting joints as likely leak sources, and photographed and measured the affected area for repair planning.

Performed a Comfort Plan clean and check on the furnace and Aprilaire whole-house humidifier system. Inspected the humidifier and found the evaporator pad heavily scaled with mineral deposits; also noted corrosion and residue at a galvanized duct joint and rust staining at the insulated duct strap, and recommend monitoring these areas and replacing the humidifier pad as needed.

Responded to a no-heat call on the building's boiler system and inspected the Heat-Timer SQ-Elite-8 sequencing control. Found the control in Winter mode with the outdoor cutoff set at 55°F and later 82°F, outdoor reset at approximately 111–112°F, target offset at +5°F, and setback at 10°F, with the system active and only Stages A through C energizing. Reviewed the control's settings and relay/transformer section in the enclosure to assess staging and call-for-heat operation; further repair and parts approval to be coordinated with property management.

Replaced the failed boiler drain valve by isolating the system, draining it down, and removing the faulty valve from the boiler's lower piping assembly. Installed a new drain valve with proper thread sealant, then refilled and purged the system and verified the connection was leak-free. Confirmed normal system operation and pressure after the repair.

Replaced the expansion tank on the hydronic system, installing a new gray diaphragm-type tank on the galvanized supply piping and securing it with strapping. Verified fitting connections and system integrity, and left the surrounding piping, water heater, and flue connections undisturbed and in working order.

Replaced the faulty temperature/pressure gauge on the boiler with a new unit, ensuring accurate system readings. Verified proper installation, checked for leaks at the connection, and confirmed the boiler is operating within normal temperature and pressure parameters.

Performed seasonal tune-ups on two furnace systems, including combustion analysis and temperature verification. Flue gas analysis on natural gas showed 7 ppm CO, 7.9% O2, 7.35% CO2, 96°F stack temperature, and 95.5% efficiency, confirming safe, efficient combustion and proper venting through the PVC exhaust. Measured supply-side temperature at the ductwork and found no visible frost, rust, or damage on the equipment or ducting.

Responded to a callback for an active leak at the boiler's relief valve discharge piping installed earlier in the week. Inspected the Weil-McLain boiler, expansion tank, and T&P relief valve discharge line, and found corrosion and mineral buildup at the valve and discharge pipe, with moisture draining to the floor drain. Documented conditions with photos and continued diagnostic labor to isolate the source of the relief valve discharge.

Performed routine Comfort Plan clean and check on a 20-year-old furnace and water heater system. Removed the burner assembly for cleaning and inspection, brushing off residue and discoloration from the burner face, then reassembled and verified proper operation. Used a borescope to inspect the heat exchanger, which showed no cracks or breaches but revealed heavy white crystalline scale buildup between the fins, which should be monitored at future visits.

Replaced the FB-38 automatic water feeder on the boiler. Installed the new feeder on the boiler makeup water line and verified proper operation, ensuring the system maintains correct fill pressure. Checked connections for leaks and confirmed the boiler is operating normally.