Exceptional Heating and Cooling Services in Oak Brook

Replaced defective mitigation board in HVAC heating unit under manufacturer's warranty coverage. Disconnected and removed failed control board, installed new replacement unit, reconnected all electrical wiring including control circuits and power connections, and verified proper system operation. Part was pre-staged at headquarters prior to service call.

Responded to service call for air conditioning system experiencing operational issues despite recent tune-up in July. Performed diagnostic inspection of Trane outdoor condensing unit and internal control systems. Examined control board circuitry, wiring connections, and electrical components for proper operation. Inspected condensate drainage system including PVC piping and verified unit's overall mechanical condition.

Responded to service call for non-functioning third floor thermostat. Upon arrival, found Lennox digital thermostat displaying current temperature of 82°F with system set to cool to 70°F, but unit not responding to commands. Inspected thermostat interface and verified display was functioning properly with accurate time, date, and temperature readings showing 73% humidity. Examined associated HVAC equipment and connections, including refrigerant lines, service valves, and PVC condensate drain with proper insulation. Restored thermostat functionality and confirmed proper communication between thermostat and cooling system. Verified system cycling on command and cooling operation resumed normally.

# HVAC Service Report - No Cooling Call Responded to emergency no cooling call for one-month-old residential air conditioning system. Upon arrival, performed visual inspection of air handler unit located in attic space. Found extensive frost and ice buildup on evaporator coil with heavy condensation throughout cabinet interior, indicating restricted airflow condition. Identified drum-style humidifier installed on supply ductwork with visible moisture trails and water streaking on exterior housing. Further investigation revealed frozen evaporator coil preventing proper heat exchange and air circulation through system. Documented conditions with photographic evidence showing crystalline frost accumulation covering coil surfaces and moisture damage to cabinet walls. Diagnosed cause as severely restricted airflow to evaporator coil, likely due to combination of factors including possible filter restriction, improper humidifier installation affecting duct airflow, or ductwork configurati

# Plumbing Service - Sump Pump Conducted comprehensive inspection of residential sump pump system and related plumbing infrastructure. Identified active leak in waste line requiring immediate plumbing intervention. Examined sump pump installation located in concrete-lined pit, noting standing water with visible sediment and debris accumulation. Discovered battery backup system experiencing leakage with active error code displayed on control panel, indicating system malfunction. Assessed overall condition of pump mechanism, float switch assembly, and associated PVC discharge piping showing signs of age and mineral deposits. Documented heavy staining on concrete pit walls consistent with long-term water exposure. Recommended professional plumber evaluate and repair waste line leak. Advised sump pump inspection and potential replacement due to battery failure and error code indication to prevent flooding risk. Photographed bathroom area and sump pump installation for service documentatio

Completed dryer vent cleaning for three-system property with laundry room located on second floor, venting vertically through roof termination. Accessed dryer vent system through interior wall panel and successfully removed significant accumulation of lint, debris, and blockage material that had built up throughout the ductwork run. The substantial amount of extracted material, visible at the access point, indicated a heavily restricted airflow condition that posed both a fire hazard and efficiency concern, which has now been eliminated to restore proper venting function and safety.

Responded to service call for newly installed A/C unit experiencing water leakage. Upon inspection, advised client to power down system to prevent potential evaporator coil icing and further water damage. Documented equipment installation including indoor air handler, refrigerant lines, and condensate drainage system in mechanical room. Issue documented under warranty for further evaluation and resolution by installation crew.

Completed comprehensive BFMA tune-up on air conditioning system, including full inspection of 2-year-old equipment. Performed detailed examination of evaporator coil assembly, condenser coil unit, refrigerant lines, and electrical connections. Documented significant debris accumulation on condenser coils requiring attention, with heavy buildup of dirt and environmental contaminants observed on heat exchanger surfaces affecting system efficiency.

Completed full HVAC system installation including SLP99 modulating furnace and SL25 modulating air conditioning unit in attic space. Installed S40 smart thermostat with 7/8 shielded wire run to second and third floor zones, powered humidifier, and APCO UV light for air quality. Equipment outfitted with attic package components including high-rise condensate pan, eight anti-vibration pads, overflow wet switch, and condensate safety overflow switch for proper drainage protection and vibration dampening. Verified operation of existing system and confirmed all new equipment functioning correctly with proper temperature control and zone management across multiple floors.

Responded to emergency call for significant water pooling in basement near furnace room. Upon arrival, discovered water intrusion affecting carpeted area with visible dark staining and saturation. Inspected both existing sump pump systems that had been recently serviced. Observed standing water accumulation indicating drainage system failure or inadequate pumping capacity. Deployed portable dehumidification equipment to mitigate moisture damage and prevent mold growth. Assessed crawl space access point and HVAC area for additional water infiltration. Documented extensive carpet water damage in main basement area and moisture conditions throughout affected zones. Recommended immediate water extraction, evaluation of sump pump discharge lines, and verification of pump float switch operation to prevent future flooding incidents.

Completed comprehensive BFMA tune-up service on three AC units, including thorough inspection of evaporator coils, refrigerant lines, and heat exchanger components. Performed semi-annual filter changes, replacing 20x25x5 and 16x25x5 filters as part of recurring maintenance program. All copper refrigerant lines, coil assemblies, and connections inspected and found operational with normal wear patterns consistent with outdoor installation; systems tested and confirmed functioning properly.

Responded to customer report of carbon monoxide detection from Navien boiler system. Upon arrival, performed comprehensive carbon monoxide testing throughout the mechanical space and at the boiler unit using calibrated Klein Tools CO meter. Testing confirmed zero parts per million (0 ppm) carbon monoxide present in the area and at all exhaust points. Inspected PVC venting system, flue connections, and combustion air supply for proper installation and clearances. All components found to be functioning within normal parameters with no evidence of CO production or venting issues.

Replaced defective contactor in the control board assembly for system #2. Accessed the electrical junction box and control module, disconnected failed contactor, installed new replacement unit, verified proper wire connections and terminal block integrity, and tested system operation to confirm successful repair.

Responded to no cooling complaint on second and third floors with thermostat set to 65°F but showing 78°F and 80°F respectively. Upon arrival, found multiple outdoor condensing units installed on rooftop area. Performed diagnostic evaluation of the multi-zone HVAC system to identify cause of inadequate cooling in upper levels and documented equipment conditions with photos for service records.

Responded to no cooling complaint on second and third floors with significant temperature differential (thermostat set to 65°F but reading 78-80°F). Performed diagnostic evaluation of multi-zone HVAC system consisting of dual furnace units in mechanical room and three outdoor condensing units. Assessed system configuration, zoning controls, refrigerant lines, electrical connections, and ductwork distribution to identify cause of inadequate cooling in upper levels and provided full system replacement estimate.

Completed comprehensive air conditioning tune-up on a 6-year-old outdoor condensing unit. Removed top panel to access condenser coil, which exhibited significant accumulation of dirt, dust, debris, and organic growth with yellowish-green discoloration throughout the fin surfaces. Thoroughly cleaned condenser coil to remove buildup and restore proper airflow and heat transfer efficiency. Performed standard maintenance inspection of all accessible components, reassembled unit, and verified proper operation upon completion.

Completed full HVAC system installation in basement utility area, replacing existing equipment with Trane 6/16 SL280 two-stage variable speed furnace and EL15 single-stage air conditioner, upgraded to 16 SEER efficiency rating. Installed all necessary ductwork connections with metallic silver transitions and elbow joints from furnace unit. Connected electrical wiring and mounted control components on concrete block wall. Applied Lennox instant rebate program and included complimentary water heater installation as part of system upgrade package. Verified all mechanical connections, tested system operation for proper heating and cooling cycles, and confirmed variable speed blower motor functionality. All equipment installed to manufacturer specifications with proper clearances maintained around furnace unit and associated components.

Completed installation of 75-gallon tanked water heater in basement utility area. Initial unit was damaged at the top upon delivery and required return to Ferguson for replacement. Successfully installed replacement unit with proper copper piping connections, secured all water supply lines, and verified system operation with no leaks detected.

Replaced defective TXV metering device in cooling system under manufacturer's warranty and installed a Quiet Check Valve on the sump pump discharge line. System pressures were verified using calibrated manifold gauges, confirming proper refrigerant charge and operational parameters post-repair.

Responded to callback for A/C unit experiencing issues and water leakage following previous service visit. Performed diagnostic inspection of system components in attic installation space. Investigated condensate drain system and evaluated PVC drain line routing. Measured ductwork clearances and assessed flexible duct connections to identify potential moisture intrusion points. Documented HVAC system configuration and drainage assembly with detailed measurements to determine if current issues were related to prior service work or represented new system concerns.