Heating and Cooling in Winnetka, Illinois

Responded to callback for gas odor at pilot assembly on Prestige tankless water heater. Replaced defective pilot assembly and verified proper combustion with no gas leaks detected. System tested and returned to normal operation with antifreeze protection maintained.

Responded to service call for water leakage from indoor air handler and intermittent power issues affecting dual HVAC system. Upon inspection, found 12-year-old Lennox system with clogged condensate drain line causing water overflow in basement. Cleared blockage from drain line, verified proper drainage flow, and tested condensate pump operation. Inspected outdoor condenser units positioned in exterior enclosure, confirmed both units operational with adequate airflow despite debris accumulation around equipment. Cleaned area around outdoor units and verified electrical connections secure at both indoor and outdoor equipment. Advised customer that intermittent power issues likely result from electrical circuit overload when both systems operate simultaneously during peak cooling demand, recommending evaluation by licensed electrician to assess circuit capacity and potential need for dedicated circuits. System restored to normal operation with proper condensate drainage confirmed.

Completed scheduled HVAC maintenance agreement service including inspection and cleaning of two outdoor condensing units and replacement of 16x25x1 air filter. Documented system operating pressures with readings of 45 PSI high side and 15 PSI low side, verified proper electrical connections and capacitor function at outdoor units, and confirmed all components operating within normal parameters. System tested and left in proper working condition.

Provided estimate for complete replacement of existing Carrier air conditioning system. Performed site assessment and took measurements of current furnace and HVAC equipment to determine proper sizing and configuration for new unit installation. Documented existing PVC venting system, condensate drainage lines, and ductwork layout to ensure compatibility with replacement equipment. Evaluated mechanical room space constraints and existing infrastructure including electrical connections, refrigerant lines, and insulated ductwork. Quote includes removal of old equipment and installation of new Carrier AC system with all necessary connections and modifications.

Completed comprehensive maintenance agreement service on two air conditioning systems and Unico air handler blowers. Performed system inspections, replaced air filters in three sizes (16x25x1, 14x20x1, and 12x24x1), verified operational temperatures with infrared thermometer showing 112°F readings, and documented equipment conditions with photographic records. All HVAC systems tested and confirmed operating within normal parameters.

# HVAC Cooling System Repair Responded to service call for residential HVAC system not cooling properly and blowing warm air. Upon arrival, performed diagnostic evaluation of the cooling system to identify the root cause of the malfunction. Utilized digital manifold gauge set to measure refrigerant pressures on both high and low side of the system. Connected gauges to service ports and observed pressure readings to assess refrigerant charge levels and system performance. Pressure analysis indicated abnormal readings consistent with refrigerant charge issues. Employed handheld digital measurement device to verify system parameters and confirm diagnostic findings. Measurements revealed system operating outside of manufacturer specifications, confirming cooling capacity loss. Based on diagnostic results, identified refrigerant charge deficiency as primary cause of inadequate cooling performance. System pressures and temperature differentials indicated insufficient refrigerant levels p

Responded to no cooling complaint on residential air conditioning system. Upon inspection, diagnosed and resolved cooling issue with outdoor condensing unit. Discussed thermostat replacement options with customer per request, as existing Honeywell ProSeries unit was not meeting preferences, with customer specifically requesting standard non-smart thermostat installation for future service.

Completed chemical wash of condenser coil to restore heat transfer efficiency and optimal system performance. Finished attic portion of clean and check service, including inspection of ductwork and air handler components. System temperatures measured at supply duct showing 52.3°F, confirming proper cooling operation. Addressed accumulated debris and corrosion on blower motor mounting area and surrounding surfaces within air handler cabinet.

Completed full condenser and evaporator coil replacement on residential A/C system. Installed new outdoor condensing unit with refrigerant line connections, secured unit on composite equipment pad, and replaced indoor evaporator coil. Brazed copper refrigerant lines, performed system evacuation to 258 microns to verify proper vacuum levels and ensure no leaks in the system, then charged unit with refrigerant per manufacturer specifications. Tested all electrical connections, verified proper system operation, and confirmed cooling performance meets design parameters.

# HVAC Install - A/C Only ## Work Performed Completed full air conditioning system replacement at residential property. Removed existing equipment and installed new Bosch outdoor condensing unit on existing concrete pad in exterior utility area. Unit positioned in side yard location with adequate clearance for service access and airflow. Replaced indoor air handler in attic space with new unit. Installed flexible ductwork with reflective foil insulation to connect air handler to distribution system. Routed refrigerant lines through attic with black foam pipe insulation for proper temperature control and condensation prevention. Installed new evaporator coil matched to system specifications. Added thermostatic expansion valve (TXV) to refrigerant circuit for improved efficiency and precise refrigerant metering. Ran new thermostat wiring and installed updated thermostat for system control. Completed dispensation wiring installation to ensure proper electrical connections throughout

Completed courtesy check on two air conditioning systems and air handler units in attic space. Replaced 16x20x1 filters showing moderate dust accumulation. Accessed equipment using telescopic ladder and documented inactive unit for equipment master update per customer request.

Completed full-system HVAC replacement for first-floor equipment including a 28-year-old air conditioning unit and 13-year-old furnace. Documented existing equipment location and accessibility, took measurements of exterior clearances and installation space, and assessed mechanical room conditions prior to system removal and replacement.

Responded to cooling complaint on first floor system with ice formation on outdoor unit. Diagnosed failed contactor causing inadequate compressor operation and reduced cooling capacity. Replaced defective contactor with new unit, restored proper system function, and verified thermostat operation showing 73°F. System now operating normally with proper cooling to affected area.

Completed preventive maintenance inspection on HVAC system including three condensing units. Performed comprehensive evaluation of basement-located Carrier furnace unit, inspecting blower assembly and verifying proper operation of squirrel cage fan. Examined air handling components, ductwork connections, and system airflow. Documented equipment condition through photographic records showing blower wheel assembly with normal operational dust accumulation and overall system status. All units inspected and found operational per maintenance agreement specifications.

Evaluated attic-mounted York space pak system with documented refrigerant leak history and water leakage issues. Inspected air handler unit, refrigerant lines, condensate drain system, and ductwork connections. Documented equipment condition and measurements. Provided comprehensive replacement options for complete system due to ongoing refrigerant leak concerns and water intrusion problems affecting unit performance and reliability.

Completed comprehensive HVAC maintenance agreement service on multi-unit system including 5 air conditioning units, 2 air handlers, 1 electronic air cleaner, and replaced filters as specified in agreement. Performed diagnostic testing with clamp meter showing 13.72 amp draw on condensing unit, inspected and cleaned mesh filters showing moderate dust accumulation, and evaluated all accessible equipment including relocated third-floor unit behind closet. Noted active ceiling leak requiring follow-up repair and documented system conditions with photos for service records.

Returned to property for third blower wheel cleaning as part of comprehensive system maintenance. Accessed air handler unit and documented extensive contamination including heavy dust accumulation and mold growth on interior surfaces and compartment walls. Removed blower wheel assembly from unit and performed thorough cleaning to restore proper airflow and system efficiency. Component exhibited significant debris buildup that was affecting system performance. Cleaned and reinstalled blower wheel, ensuring proper operation before closing unit.

Completed maintenance agreement service on two air conditioning systems. Replaced 16x25x1 air filters on both units. Performed standard system inspections and diagnostics using calibrated testing equipment. Discussed maintenance agreement renewal options with customer and provided pricing information for continued service coverage.

Responded to a no cooling call and diagnosed a refrigerant leak at the air handler suction line copper fitting, evidenced by green oil staining. The leak location was easily accessible in the basement utility area. Documented the refrigerant leak with photos showing the affected copper piping and brass fittings at the air handler connection point.

Performed comprehensive HVAC system evaluation on second floor left unit. Diagnosed low refrigerant levels in AC condenser and identified failed electrical components requiring complete electrical rebuild of condenser unit. Assessed aging furnace system determined to be over 10 years old and nearing end of serviceable life. Documented interior components and system conditions through detailed photography for estimate preparation. Scheduled follow-up installation appointment for full system replacement to address multiple component failures and aging equipment.