Reliable Heating & AC Services in Ann Arbor, MI

Performed routine preventive maintenance on residential standby generator equipped with Vanguard 627cc engine. Removed and replaced spark plugs showing normal wear patterns. Inspected air filtration system and noted mesh filter screen in serviceable condition. Verified electrical connections and control box wiring remained secure with no signs of deterioration or loose terminals. Confirmed generator mounting remained stable on concrete pad with all mechanical components properly secured. Unit tested successfully following maintenance procedures with all systems operating within normal parameters.

Completed warranty replacement of evaporator coil on existing HVAC system. Protected work area with cardboard floor covering to prevent damage during installation. Successfully replaced defective evaporator coil and reconnected all refrigerant lines, ensuring proper system operation and verifying no leaks in the refrigeration circuit.

Completed scheduled AC maintenance on outdoor condensing unit. Inspected and documented condition of air filter, which showed significant accumulation of dirt, dust, and debris requiring attention. Filter exhibited heavy soiling with brownish-tan discoloration and visible horizontal striations throughout the mesh material. Photographed unit from multiple angles to document pre-service condition, including top-down views showing cooling coils, metal casing, and filter assembly within frame. Noted debris buildup along filter edges where mesh meets metal frame, indicating restricted airflow conditions that could impact system efficiency and performance if left unaddressed.

Completed routine A/C maintenance on residential HVAC system. Inspected indoor unit components including blower assembly, evaporator coil, refrigerant lines, and electrical connections—all found in satisfactory operating condition. Investigated customer concern regarding water near dehumidifier; checked condensate drain system for proper drainage and verified no active leaks or blockages present at time of inspection. Examined air filter, which was clean with adequate airflow. System operating within normal parameters with no additional service required at this time.

Conducted site assessment for generator installation at approximately 100-year-old residential property. Evaluated existing electrical infrastructure, including aged meter assembly and exterior service equipment mounted on brick exterior. Documented multiple electrical deficiencies requiring attention. Discussed generator options with homeowner, clarifying that only air-cooled units are available through our service offerings. Customer requesting 38KW unit capacity for whole-home backup power solution. Photographed existing electrical service panel, meter base, conduit routing, and proposed generator placement area along side yard near privacy fence. Site presents installation challenges due to age of existing electrical system and will require coordination with utility company for service upgrades to accommodate generator load requirements.

Completed seasonal cooling maintenance and tune-up on residential air conditioning system. Unit operational and performing within normal parameters. Inspected condenser unit exterior components, verified refrigerant line connections, examined electrical wiring and connections, and assessed internal compressor and evaporator coil condition. All mechanical and electrical components functioning properly with no deficiencies noted at time of service.

Conducted estimate for replacement of aging HVAC system in residential basement due to cracked evaporator pan causing active water leak. The existing system, over 20 years old, has discontinued parts availability, making repair unfeasible. Documented current equipment condition and installation environment, including furnace unit with connected PVC drainage piping and ductwork configuration, to provide comprehensive replacement recommendation.

Responded to water leak complaint on HVAC system that was still maintaining heating and cooling capability. Upon inspection, performed system diagnostics using refrigerant manifold and micron gauge to assess pressures, temperatures, and potential vacuum leaks. Verified system integrity and identified source of water leak, completing necessary repairs to resolve the issue while ensuring continued operational performance.

Conducted on-site estimate for replacement of non-operational 3-ton air conditioning unit and evaluated existing 30-year-old Carrier furnace for potential replacement. Assessed current HVAC system configuration in basement mechanical room, documented equipment specifications, ductwork connections, electrical service, and gas line routing to provide comprehensive replacement options for both single AC unit replacement and full system upgrade scenarios.

Responded to no cooling call on Lennox air conditioner in basement with 411 alarm on pressure switch. Upon inspection, tested system pressures using refrigerant manifold gauge, which showed suction pressure of 10.12 PSIG and discharge pressure of 247.8 PSIG with corresponding temperatures. Inspected evaporator coil assembly and found unit operational after diagnostics, with pressure switch alarm likely triggered by temporary pressure imbalance that cleared during testing.

Completed scheduled preventive maintenance on residential split-system air conditioning unit. Performed comprehensive inspection of outdoor condenser unit, confirming proper operation of fan motor and compressor. Verified refrigerant lines intact with no visible leaks or damage. Inspected indoor air handler assembly, checking evaporator coil condition, blower operation, and electrical connections. All components found operating within normal parameters. System tested and confirmed cooling properly.

Performed comprehensive air conditioning maintenance on residential cooling system as part of DTE Energy rebate program. Conducted thorough inspection of outdoor condensing unit, verifying proper operation of compressor assembly and refrigerant line connections. Examined condenser coil fins for cleanliness and airflow efficiency—coils found in good condition with uniform appearance throughout. Inspected copper refrigerant lines and fittings for signs of leaks or damage; all connections secure with no visible defects. Verified adequate clearance around outdoor unit and checked ventilation grille for proper airflow. Documented system condition with photographs for rebate program compliance. Unit operating within normal parameters upon completion of maintenance procedures.

Performed routine cooling season maintenance on residential air conditioning system. Conducted comprehensive system diagnostics using digital manifold gauges, verifying refrigerant pressures and temperatures within manufacturer specifications. Inspected evaporator coil assembly, condensate drain pan, and drainage system for proper operation and cleanliness. All components found operating normally with no deficiencies noted.

Responded to service call for inadequate cooling in 3-level townhouse with HVAC system located on bottom level. Customer reported AC running continuously, unable to maintain temperature below 80°F on middle floor and 88°F on upper level, while bottom level cooled adequately. Inspected outdoor condenser unit and found heavily soiled condenser coils with significant dirt and debris buildup restricting airflow. Coils showed dark discoloration and accumulated grime throughout exterior surfaces. Cleaned condenser coils thoroughly to restore proper heat transfer efficiency and airflow capacity. Verified compressor operation and refrigerant line connections. Recommended evaluation of ductwork design and airflow balance throughout multi-level system to address temperature stratification issues, as inadequate air distribution may be contributing to poor upper-level cooling performance.

Completed preventive maintenance inspection on residential air conditioning system. Performed visual inspection of condenser coil assembly, confirming fins are clean and free of debris with proper spacing maintained for optimal heat transfer. Inspected evaporator coil and blower motor assembly, verified electrical connections and refrigerant lines are secure with no visible signs of wear or damage. Unit operating within normal parameters with all components functioning properly.

Completed preventive maintenance service on dual outdoor AC condenser units as part of Worry Free Service Agreement cooling season inspection. Both units were thoroughly inspected, including visual assessment of housing integrity, electrical connections, refrigerant lines, and overall operational condition. All equipment found to be in good working order with no visible damage, rust, or deterioration noted on either system.

# HVAC Maintenance - Cooling System Service Completed comprehensive preventive maintenance and tune-up on outdoor cooling unit. Performed standard seasonal inspection including cleaning of condenser coils, verification of refrigerant lines and connections, electrical component testing, and system operational checks. Unit confirmed operational and running within normal parameters; debris removed from base area and mulch cleared from around equipment to ensure proper airflow and drainage.

Completed comprehensive preventive maintenance on two residential air conditioning systems. Performed standard cooling season inspection protocol including visual examination of condenser units, verification of proper refrigerant line connections, assessment of electrical wiring integrity, confirmation of fan assembly operation, and evaluation of overall system condition. Both units found to be in good working order with no deficiencies noted.

# Generator Maintenance Service Performed scheduled preventive maintenance on residential standby generator system. Conducted comprehensive inspection of unit including gas valve assembly, electrical connections, and internal components. Removed and inspected spark plugs, which showed normal wear patterns consistent with regular operation. Verified all wire connections including red, blue, and yellow control wiring to gas valve were secure and properly terminated. Inspected external housing and verified unit was properly positioned on concrete pad with adequate ventilation. Checked manufacturer labels and warning placards for visibility and legibility. All systems tested and confirmed operational. Unit returned to service with no deficiencies noted.

Conducted comprehensive HVAC system replacement estimate at residential property. Evaluated existing electrical infrastructure including outdoor disconnect box with dual circuit breakers and main electrical panel in basement utility area. Documented current equipment configuration, electrical service capacity, conduit routing, and panel accessibility for proposed system installation. Photographed all relevant components to support equipment sizing recommendations and replacement scope development.