# HVAC Maintenance - Heating System Service Completed basic monthly heating maintenance visit on Trane air handler unit. Performed standard heating system diagnostics including electrical measurements using digital multimeter, which indicated 2.5 CA reading during operational testing. Inspected air handler cabinet, control panel, refrigerant lines, and condensate drain for proper operation and signs of wear. Unit showed normal age-related dust accumulation but maintained functional integrity. Unable to replace air filter as filter size was not identified during this visit.

Responded to water leak under kitchen sink. Upon arrival, found disconnected drain pipe beneath sink causing active water leak. Inspected under-sink plumbing assembly including garbage disposal unit, P-trap, and drainage connections. Reconnected and secured loose drain pipe, verified all PVC connections were properly sealed and tightened. Tested system by running water through sink and disposal to confirm leak was resolved and all connections remained secure under flow. Also inspected toilet tank mechanism during visit and documented condition of flush valve assembly. System restored to proper working order with no active leaks detected upon completion.

Returned to site with replacement control board, transformers, and circuit breakers to complete HVAC system repair. Installed new electrical components in the unit's control panel, terminated all wiring connections to breakers and control board per manufacturer specifications, and restored power to the system. Verified proper operation of all electrical circuits and confirmed unit functionality upon completion.

Performed annual maintenance on aging residential forced-air furnace system experiencing clanging noises during startup. Completed thorough blowout and cleaning of unit to remove accumulated dust and debris from burner assembly, heat exchanger, and blower compartment. Verified proper operation of Honeywell ProSeries thermostat set to 73 degrees and confirmed system cycling without abnormal sounds following service.

Conducted comprehensive assessment of crawl space plumbing system with multiple water line failures resulting in standing water accumulation. Documented existing conditions including compromised vapor barrier, exposed PVC supply lines with visible markings indicating previous repair attempts, and saturated subfloor areas requiring immediate attention to prevent structural damage and mold growth.

Responded to service call for geothermal heat pump system displaying flashing high pressure fault light upon first heating cycle activation. System defaulted to stage 2 auxiliary heat element instead of operating in geothermal mode. Inspected thermostat settings and confirmed proper temperature display and control functionality. Evaluated system pressure readings using diagnostic gauge to assess refrigerant circuit operation and identify cause of high pressure fault condition.

Completed annual cooling maintenance visit on Lennox air handler system. Performed standard inspection of blower assembly, noting significant rust and corrosion on central motor shaft requiring future monitoring. Observed aged ductwork with surface discoloration but functionally intact. Replaced 14x24x1 air filter as included in service. Verified blower wheel operation and airflow through metallic supply ductwork. System operational at time of departure, though motor shaft corrosion should be addressed during next service interval to prevent potential bearing failure.

Completed site measurements for water softener reloop installation. Documented existing plumbing configuration including water treatment system with pressure gauge, brass fittings, PVC piping, and filter housing mounted on basement wall. Captured detailed photos of current setup to facilitate accurate planning and material ordering for the reloop modification.

Responded to clogged drain service call and successfully cleared blockage from exterior drain line. Removed and cleaned pipe fitting, extracted accumulated debris and sediment from the line, and verified proper water flow upon completion. All components were reassembled and system tested to ensure full functionality.

Completed monthly heating maintenance visit on residential HVAC system. Inspected Honeywell digital thermostat confirming proper operation with system set to heat mode at 69 degrees. Accessed air handler unit and visually inspected evaporator coil, noting dust and dirt accumulation on coil surfaces requiring future cleaning attention. Observed degraded insulation material around drainage connections and general wear consistent with system age. Filter size could not be determined during this visit. System operational at time of departure.

Responded to service call for reported water leakage around geothermal unit. Upon inspection, documented significant water staining and moisture damage on concrete floor and walls in utility area surrounding the geo system, with concentrated pooling patterns in corner near equipment. Photographed affected areas showing extent of water infiltration and surface discoloration for diagnostic purposes and customer records.

Conducted on-site evaluation of 1992 heat pump system previously diagnosed as failed by another contractor. Accessed unit through rear gate using provided entry code while homeowner was out of state for work. Inspected internal electrical compartment revealing aged wiring, discolored connections, and accumulated debris consistent with 30+ year-old equipment. Documented existing electrical panel and compromised heat pump components. Provided comprehensive photographic documentation of deteriorated wiring harnesses, terminal connections, and overall system condition to support replacement recommendation for antiquated HVAC equipment that has exceeded its serviceable lifespan.

Responded to dryer vent disconnection issue in basement utility area. Found dryer vent completely detached from dryer unit, creating potential lint accumulation and safety hazard. Reinstalled and secured dryer vent ductwork, routing it vertically through wall penetration to ensure proper exterior venting and code compliance.

Replaced defective shut-off valve under kitchen sink. Accessed plumbing assembly beneath sink cabinet, removed old valve, installed new shut-off valve, and tested for proper operation and leaks. All connections secured and system restored to full working order.

Performed inspection and maintenance on tanked water heater combustion system. Verified proper ignition and flame operation through viewing port, confirming healthy blue flame pattern indicating complete combustion. Inspected flame sensor electrode and associated wiring connections for secure mounting and proper electrical continuity. All combustion components operating within normal parameters and unit functioning safely.

Responded to emergency no cooling call. Upon arrival, found thermostat displaying 80°F and in OFF position. Inspected furnace/air handler unit in utility area and verified system was not receiving call for cooling. Diagnosed thermostat malfunction preventing proper system operation. Replaced faulty thermostat with new unit, restored power, and tested system through complete cooling cycle. Verified proper communication between thermostat and HVAC equipment, confirmed adequate airflow, and ensured all safety controls functioning correctly. System now operating normally with cooling restored.

Responded to service call for kitchen sink drain pipe that had come loose from the basin. Upon inspection, found the drain assembly connection had separated, causing potential leakage. Secured and properly reconnected the drain pipe to the sink strainer assembly, ensuring all threaded connections were tight and properly sealed. Noted evidence of previous water damage on cabinet floor from the loose connection. Tested system for proper drainage and verified no active leaks present after repair.

Responded to clogged laundry drain backup. Upon inspection, located the utility box housing washing machine connections with hot and cold water supply lines and drain standpipe. Cleared blockage from laundry drain line using appropriate drain cleaning equipment, restoring proper drainage and eliminating backup issue.

Responded to kitchen drain blockage and deployed small jetter equipment to clear the line. Successfully cleared obstruction and restored proper drainage flow, with visual inspection of the cleanout access point confirming clear passage through the PVC drainage system.

Completed annual cooling maintenance visit on Lennox Dave Lennox Signature Collection CBX48MVT air handler system utilizing R454B refrigerant. Performed comprehensive system inspection, verified thermostat operation showing proper cooling mode function with setpoint at 67°F, and documented service history on equipment labeling. System operating within normal parameters with no deficiencies noted.