Deljo’s Heating & Cooling In Northbrook, Illinois HVAC, Air Conditioner & Furnace Services

Conducted comprehensive assessment of existing residential HVAC system located in basement utility area for full system replacement quote. Evaluated current furnace unit, ductwork configuration including galvanized metal plenum and flexible ducting sections, condensate pump assembly with PVC drainage lines, and overall mechanical room layout. Documented equipment condition showing age-related wear, dust accumulation on duct components, and existing installation configuration with water heater proximity. Photographed complete system setup to provide detailed visual reference for replacement specifications and equipment sizing requirements.

Returned to site for second blower motor replacement after initial repair attempt failed. Upon arrival, confirmed that control board had been previously replaced and compressor was now operating properly, but blower motor remained non-functional. Contacted technical support to verify diagnosis, which confirmed defective blower motor. Installed new blower motor module and restored system to full operation. Unit tested and verified all components functioning correctly.

Completed comprehensive cooling check on air conditioning system and air handler as part of Gold Shield Club of the Week maintenance agreement. Inspected refrigerant lines, electrical connections, and all accessible components in attic installation; verified proper insulation on copper lines, checked vibration dampening systems, and confirmed system operational status. All equipment found to be functioning within normal parameters with no immediate service needs identified.

Performed routine maintenance agreement service on residential air conditioning system. Conducted comprehensive system inspection and diagnostics using digital measurement instruments to verify proper operating parameters. Replaced existing 16x25x1 air filter with new Goodson filter as part of standard maintenance protocol. Verified airflow measurements and system performance metrics were within manufacturer specifications. System operating normally upon completion of maintenance visit.

Completed routine HVAC maintenance agreement service on Carrier furnace system and condenser unit. Installed new 20x25x1 air filter, inspected ecobee thermostat operation confirming proper functionality at 72°F setpoint with hold mode engaged at 65°F, and verified all mechanical components, ductwork connections, and electrical controls within the utility closet are operating within normal parameters.

Completed routine maintenance agreement service on Carrier outdoor condensing unit. Changed 16x25x1 air filter, performed comprehensive system inspection, and verified proper operation of all components. Unit operating within normal parameters upon service completion.

Returned to property to install new control board on HVAC system. Tested unit with control board replacement first to isolate issue. Determined blower motor also required replacement and proceeded with installation of new motor assembly. Installed surge protectors on both furnace units and both outdoor AC condensing units to provide electrical protection against power surges. All equipment tested and verified operational upon completion.

Responded to no-cooling complaint for upstairs air conditioning unit less than 5 years old. Accessed attic space via interior hallway to reach air handler and control system. Upon inspection of the control board assembly, diagnosed electronic control failure affecting system operation. Replaced defective control board with manufacturer-approved replacement unit, reconnected all electrical connections including power supply, communication wiring, and safety circuits. Verified proper voltage readings, tested all system functions, and confirmed unit returned to normal cooling operation.

Completed comprehensive air conditioning maintenance inspection per maintenance agreement for single unit. Documented humidistat control settings on Aprilaire humidity control device, currently positioned at OFF setting, and inspected outdoor condensate pump system housed in below-grade access pit. Verified copper refrigerant lines, pump operation, and drainage components; noted existing staining in sump basin consistent with normal condensate discharge patterns.

Completed HVAC maintenance agreement service on Carrier air handler system. Changed out 16x20x1 air filter and performed general system inspection. Verified proper operation of equipment, checked refrigerant lines for leaks, and confirmed adequate condensation drainage from evaporator coil. All components operating within normal parameters at time of service.

Completed installation of battery backup sump pump system with iOn Genesis control unit. System installed in utility closet with dual PVC discharge pipes running vertically from floor-mounted basin, connected via couplings to horizontal discharge line. Control panel mounted on wall with digital display for system monitoring and multiple cable connections to pump components secured with terminal blocks.

Completed comprehensive inspection of residential sump pump system in response to reported noise from backup battery control unit. Examined primary sump pump assembly, PVC discharge piping, check valve operation, and backup battery system components. Verified proper pump operation, tested float switch functionality, and confirmed discharge line integrity with no blockages or leaks detected.

Performed preventative maintenance agreement service on residential HVAC system including two condenser units. Completed comprehensive system inspection of air handler, ductwork, refrigerant lines, and associated components located in mechanical room and attic space. All equipment found operating within normal parameters, no media replacement required during this scheduled maintenance visit.

Completed comprehensive maintenance inspection on CC 1 condenser unit as part of scheduled agreement service. Performed system diagnostics including temperature differential measurements and inspected air filtration system, documenting equipment condition with photos showing operational parameters and filter status requiring monitoring for future replacement.

Completed comprehensive cooling check and air conditioning general service on residential HVAC system. Performed detailed inspection of blower assembly and evaporator components, verified proper operation of blower wheel and housing integrity. Conducted electrical diagnostics on outdoor condensing unit using digital multimeter, measuring system amperage and confirming capacitor performance within manufacturer specifications. System operating efficiently with all components functioning properly.

Completed HVAC maintenance agreement service on air conditioning system. Replaced air filter with new pleated media filter and inspected control board and electrical components for proper operation. Examined refrigerant lines and connections for signs of leakage as customer reported leak from previous year; no active leaks detected during inspection.

Completed comprehensive maintenance agreement service including cleaning and inspection of two condensing units and replacement of two 20x25x1 air filters. Utilized video inspection equipment to examine interior ductwork and plumbing connections, documenting system conditions with photographic evidence. All equipment operating within normal parameters upon completion of preventative maintenance tasks.

Performed scheduled maintenance on Carrier furnace and water heater per maintenance agreement. Inspected ductwork system, insulation, and connections for proper installation and condition. Temperature check at supply register showed 44.5°F, confirming system is operating within expected parameters.