HVAC Repair & Service in Chesapeake City, MD

69 over-voltage events, 1 under-voltage event, and 6 outages. The monitor displayed a voltage reading of 248V, while the multimeter showed fluctuations between 246 and 247.8 volts. The system's settings were configured with an under-voltage threshold of 208V and an over-voltage threshold of 253V. After addressing the issues, the Daikin ductless system is now operating without any error codes, ensuring optimal performance.

Upon arrival, I assessed the customer's concern about the loud startup of the AC system. With the customer present, I initiated the system, and neither of us detected any abnormal sounds. I then took amp readings during normal operation, which showed no issues. However, upon testing the start components, I identified a problem that required correction. I made the necessary repairs and cycled the system. The equipment is now running smoothly and efficiently.

I conducted a thorough cleaning and inspection of the air conditioning system, focusing on both the indoor and outdoor units. The evaporator and condenser coils, along with the unit cabinets, were meticulously cleaned to ensure optimal airflow and heat transfer efficiency. All high- and low-voltage wiring and electrical connections were inspected, with no visible defects found. The condensate drains and safety controls were tested and verified for proper operation. The system was operated and tested in both cooling and heating modes. The outdoor unit's power and voltage were checked, and the indoor unit's components, including the blower, coil, and filter, were inspected and found to be functioning correctly. The heating system passed visual inspection, smoke test, and operational tests.

I recently completed a comprehensive duct cleaning service, utilizing advanced techniques such as air ranging and UV light technology to ensure thorough cleaning. Additionally, I employed oxidation methods to eliminate any remaining contaminants. The ducts were meticulously cleaned, improving air quality and system efficiency. However, further duct installation is required to optimize the system. A field supervisor will need to visit to provide a detailed quote for this additional work, ensuring the installation meets all necessary standards and specifications.

Upon arrival, I performed a comprehensive commissioning of the HVAC system. The air conditioning was operational, maintaining a thermostat setting of 70°F. I inspected the heat pump to ensure normal operation, confirming that the refrigerant charge was accurate with a DeltaT of 19°F. The superheat was measured at 16°F, and the subcooling was 9°F, both within acceptable ranges. I also verified the static pressure, which was correctly set at 0.5 inches of water column (iwc). After conducting necessary tests, I sealed all access points. The heat pump and heater responded correctly to heating demands, indicating the system is functioning normally.