Responded to no-heat service call for 20+ year old forced air furnace. Diagnosed failed secondary heat exchanger causing system to short cycle and run constantly without maintaining adequate temperature. System is beyond economical repair due to age and condition. Recommended full system replacement; customer referred to comfort advisor for replacement options.
Performed comprehensive furnace tune-up on single-stage unit. Conducted full system inspection including heat exchanger examination for wear, combustion analysis testing, and verification of proper gas pressure. Cleaned pressure switch and inspected flame sensor, burners, and blower assembly. System operating within normal parameters with no immediate concerns identified. Thermostat functioning correctly with adequate heating output.
Performed comprehensive diagnosis on malfunctioning oil furnace. Inspected and serviced key components including electrodes, nozzle, transformer, circuit board, and heat exchanger. Identified significant carbon buildup and corrosion on combustion components. Cleaned heat exchanger, bled fuel oil line from tank, and cycled system to verify proper operation. Furnace now functioning with normal operation parameters and correct combustion.
Responded to customer concerns regarding CO2 and smoke from furnace making intermittent rumbling noises. Performed comprehensive inspection of furnace system including visual examination of heat exchanger, electrodes and nozzle. Reconnected flue stack and sealed the chimney connection point to ensure proper venting. Verified ignition system functioning correctly with no delays in ignition sequence.
Serviced 15-year-old forced air furnace that was shutting down due to limit switch activation. Diagnostic inspection revealed clogged secondary heat exchanger with visible corrosion and buildup on the heat exchanger fins. Replaced secondary heat exchanger to resolve high CO issue and restore normal system operation.
Responded to no-heat call for furnace that stopped working after transformer installation the previous day. Diagnosed tripped limit switch which was reset. Replaced nozzle and bled fuel line to restore proper operation. Verified furnace is now cycling correctly from thermostat and producing heat.
Responded to a first call service request to address ignition issues on an oil furnace. Diagnosed faulty ignition transformer, sourced replacement from shop, and installed new component. Properly reconnected all wiring and verified system operation through multiple test cycles. Equipment now functioning normally with proper flame ignition.
Diagnosed oil furnace failure in non-heating condition. Located Honeywell R8184M primary control module in lockout state. Reset module without success. Upon inspection of oil flow, nozzle, electrodes, and transformer, determined transformer to be malfunctioning. Placed order for replacement transformer to restore heating capability.
Performed routine furnace maintenance on approximately 20-year-old system featuring a Whirlwind high performance blower. Found and replaced dirty air filter, ensuring proper airflow through the system. Inspected blower motor assembly and ductwork, confirming all components in working order with no visible damage.
Completed comprehensive tune-up service on customer's oil furnace (8-12, over 10 years old), including replacement of oil filter, gaskets, and nozzle with .65 80°B nozzle. System inspection covered transformer, ignition, control box, wiring, blower, Beckett motor, sensors, electronic air filter, combustion air, and venting; purged air from fuel line and verified normal operation.
Performed furnace tune-up service, identifying rust buildup on burners and orifice. Adjusted gas valve pressure from 4.7 to 3.5 WC, inspected heat exchanger (no cracks or damage found), and detected elevated carbon monoxide levels over 100 ppm. Recommended installation of CO detectors on multiple floors for safety.
