Boiler Service Technician

Southwest Mechanical
• Los Angeles, CA, US

Posted 4 days ago

We are looking to hire a full‑time service boiler technician with experience on domestic and heating boilers.

• Strong troubleshooting and diagnostic abilities.
• Ability to read mechanical, electrical, and piping diagrams and schematics.
• Experience with combustion analysis equipment.
• Knowledge of hydronic systems and domestic hot water systems.
• Familiarity with boiler controls and BAS integration.
• Excellent customer service and communication skills.
• Ability to work independently, as part of a team, and prioritize multiple service calls.
• Valid driver's license with a clean driving record.
• Ability to lift equipment and work in mechanical rooms, rooftops, and confined spaces when required.

Boiler Operation & Maintenance

• Perform routine preventive maintenance on commercial and industrial boiler equipment and associated systems.
• Maintain low-pressure boilers, high-pressure boilers, power boilers, and domestic hot water heating systems.
• Inspect, diagnose, troubleshoot, repair, and service gas‑fired and hydronic heating systems.
• Perform scheduled boiler inspections and ensure systems operate safely and efficiently.
• Monitor boiler operation, temperatures, pressures, combustion performance, and system controls.
• Facilitate periodic boiler cleaning and heat exchanger maintenance.
• Test boiler water for corrosive deposits and chemical balance; treat water as required to prevent scaling and corrosion.
• Inspect burners, combustion chambers, refractory, venting systems, and heat exchangers.
• Clean burners, pilot assemblies, igniters, flame sensors, and combustion components.
• Flush domestic hot water storage tanks and boiler systems as required.
• Inspect and clean condensate drains and neutralizers.
• Inspect insulation and piping for leaks or damage.
• Diagnose electrical, mechanical, gas, plumbing, and control system failures.
• Troubleshoot no-heat, no domestic hot water, lockout, flame failure, pump failure, low-pressure, high-temperature, and control issues.
• Replace defective valves, gas valves, mixing valves, expansion tanks, pressure reducing valves, backflow prev enters, flow switches, pressure switches, sensors, relays, filters, steam gauges, relief valves, and actuators.
• Replace blower motors, combustion blowers, pumps, motors, bearings, igniters, flame rods, control boards, and ignition components.
• Repair domestic hot water recirculation systems and hydronic heating systems.
• Repair leaking piping, fittings, heat exchangers, and associated mechanical equipment.
• Purge air from hydronic systems and balance heating loops.
• Troubleshoot 24V, 120V, and 480V electrical systems.
• Program and configure boiler controllers and building automation interfaces.
• Verify sensor calibration and proper operation of safety devices.
• Troubleshoot relay boards, VFD-controlled pumps, and boiler management systems.
• Perform electrical wiring repairs according to manufacturer specifications.

Combustion & Gas

• Perform combustion analysis and adjust burners for peak efficiency.
• Verify proper ignition sequence and flame safeguard operation.
• Adjust manifold gas pressure and air‑to‑fuel ratios.
• Inspect gas piping and perform leak testing.
• Verify venting and combustion air requirements.
• Install commercial boilers, domestic water heaters, storage tanks, pumps, controls, gas piping, expansion tanks, venting systems, and associated equipment.
• Perform startup, commissioning, and operational testing of new installations.
• Verify system performance after repairs and installations.

Safety & Compliance

• Monitor boiler systems to ensure safe operation.
• Test low water cutoffs, pressure relief valves, spill switches, blocked vent switches, and other safety devices.
• Follow OSHA regulations, lockout/tagout procedures, and company safety policies.
• Identify unsafe equipment or hazardous conditions and immediately notify supervisors.
• Maintain clean and organized mechanical rooms and work areas.
• Ensure compliance with all local, state, and federal mechanical and boiler codes.

Documentation

• Maintain and update required records for boiler operations.
• Complete service reports, maintenance records, and inspection documentation.
• Record…