Reliable HVAC, Plumbing & Electrical in Sun Prairie, WI

Responded to no cooling complaint on recently installed Lennox system under warranty. Found humidifier bypass damper in open position, allowing outside air infiltration and compromising system efficiency and dehumidification performance. Adjusted bypass damper to proper position and recommended keeping outside air sealed during peak humidity conditions to optimize cooling and moisture removal capabilities.

Completed prepaid air conditioning clean and check service on residential outdoor condensing unit. Performed standard seasonal maintenance including inspection of refrigerant lines, electrical connections, and condenser coil cleaning to ensure optimal system performance for the cooling season.

Responded to no cooling complaint on commercial rooftop Trane packaged HVAC unit. Upon inspection, diagnosed failed control board preventing system operation. Accessed unit through exterior panel, confirmed control board failure through visual inspection and system diagnostics. Located and replaced defective control board with compatible replacement part. Verified proper system operation, tested cooling cycle, and confirmed all functions restored to normal operating parameters before closing access panel and completing service.

Performed startup and commissioning on newly installed Lennox air conditioning system. Verified system pressures using refrigerant manifold gauges, confirmed proper refrigerant charge levels, and inspected installation quality to ensure all components were properly installed and functioning. System operational and ready for service.

Responded to reported gas valve leak on Goodman furnace following recent maintenance service. Conducted thorough leak detection inspection of gas valve assembly and all gas connections with unit gas supply shut off. Unable to detect or confirm any active gas leak at valve body, connections, or associated piping using standard leak detection methods.

Responded to no cooling complaint with frozen evaporator coils on American Standard system. Diagnosed failed furnace control board preventing proper system operation. Replaced defective control board, restored power to unit, and verified proper system functionality with normal cooling operation resumed.

Responded to no cooling complaint on residential air conditioning system. Upon arrival, found unit had previously frozen and was experiencing inadequate cooling performance. Connected manifold gauges to outdoor condensing unit and performed refrigerant pressure diagnostics. Testing revealed system was low on refrigerant charge, indicating a leak in the refrigerant circuit. Due to the age and condition of the equipment, along with the refrigerant loss, recommended full system replacement rather than repair. Customer was advised to monitor unit and power off if freezing occurs again to prevent compressor damage.

Performed comprehensive air conditioning clean and check service on residential HVAC system located in basement mechanical room. Inspected air handler unit, verified proper operation of all components, and cleaned system as needed. Confirmed thermostat functionality and system controls operating within normal parameters.

Responded to service call for Aprilaire dehumidifier displaying E4 error code and not operating properly. Diagnosed unit and determined issue consistent with low refrigerant charge. Advised customer that if problem persists, unit replacement may be necessary.

Responded to service call for water pooling on top of furnace unit. Performed comprehensive diagnostic inspection of high-efficiency furnace system and condensate drainage components. Inspected PVC condensate drain lines, trap assembly, and discharge piping for blockages or restrictions. Checked condensate pump operation and verified proper drainage flow. Examined secondary drain pan for cracks or overflow conditions. Inspected evaporator coil drain outlet and surrounding cabinet for moisture intrusion sources. Verified furnace inducer motor and pressure switch operation. Checked flue pipe connections and PVC intake/exhaust venting system for proper sealing and potential condensation leakback. System operational upon completion with proper condensate removal functioning.

Responded to exterior bathroom vent obstruction caused by bird nesting activity. Removed bird nest debris from vent opening and interior ductwork to restore proper ventilation airflow. Installed metal wire mesh screen cover over vent opening to prevent future wildlife intrusion while maintaining adequate exhaust capacity.

Responded to no cooling complaint on 22-year-old system. Upon inspection, found unit low on R-22 refrigerant with insufficient system pressures for proper operation. Performed clean and check service on outdoor condensing unit, including inspection of electrical components and connections. Connected manifold gauge set and confirmed refrigerant charge was significantly below manufacturer specifications. Customer also reported intermittent operation issues and blower motor concerns on furnace, which showed signs of age-related strain. System pressures remained inadequate after cleaning despite service attempts, indicating substantial refrigerant loss requiring further evaluation and repair to restore cooling capacity.

Responded to no cooling complaint on residential air conditioning system. Upon arrival, found outdoor condenser unit with heavily soiled coil fins containing significant accumulation of dirt, dust, debris, and organic matter lodged between fins. Performed exterior coil cleaning by rinsing unit to remove buildup and restore proper airflow. After cleaning and attempting startup, diagnosed failed hermetic compressor capacitor preventing unit operation. Contacted customer for authorization to proceed with repair. Replaced defective capacitor with new component. Conducted operational testing following repair. Verified compressor startup, confirmed proper system operation, and validated cooling performance. Customer reported fresh filter already installed at furnace. Unit restored to normal cooling operation.

Responded to cooling complaint on recently installed air conditioning system. Upon inspection, found unit to be overcharged with refrigerant, measuring 8 pounds above manufacturer specifications. Recovered excess refrigerant and adjusted charge to recommended 3 pounds, restoring proper system operation and cooling performance.

Completed standard A/C clean and check on aging residential air conditioning system. Unit remains operational despite advanced age; performed basic cleaning service and verified all components functioning within acceptable parameters.

Responded to no cooling complaint on residential air conditioning system. Upon inspection, diagnosed dead short circuit caused by failed transformer and contactor. Replaced defective transformer and contactor to restore proper system operation and cooling functionality.

Performed seasonal startup on recently installed Lennox air conditioning system. Upon inspection, discovered refrigerant charge was slightly low and added 7 ounces of R454B to bring system to proper levels. Diagnosed and resolved thermostat communication issue caused by incorrect wiring at the unit. Corrected all wiring connections, verified proper thermostat operation, and confirmed system is cooling effectively with all components functioning as designed.

Completed pre-paid Action Family Rewards cooling maintenance visit on outdoor condensing unit. Performed standard clean and check procedures on the HVAC system, inspecting the condensing unit cabinet, fan motor assembly, refrigerant lines, and electrical connections. Provided customer with information regarding Action Family Rewards plan coverage details as requested.

Responded to no cooling complaint on residential air conditioning unit. Upon inspection, discovered rodent damage to electrical wiring causing short circuit against cabinet housing. Repaired damaged wire using butt connector and properly insulated with electrical tape. Restored power to unit and performed operational testing, which revealed failed start capacitor reading below specification. Replaced defective start capacitor and verified system returned to normal cooling operation.

Responded to service call for inadequate cooling on upper level while ground floor maintained proper temperatures. Diagnosed R-22 system with low refrigerant charge and dirty condenser coil. Identified evidence of refrigerant leak at indoor unit. Performed complete system cleaning and maintenance on Ruud outdoor condenser unit. Due to age of R-22 equipment and refrigerant loss, recommended monitoring system performance and evaluation for potential system replacement given phase-out of R-22 refrigerant.