24-hour Emergency Heating Repair: Responded to a late-night emergency call after the client reported that their boiler had stopped producing heat. Arrived on-site and established safe working conditions, then inspected the boiler system to identify the issue. Found a faulty ignition module preventing the burner from firing. Replaced the defective component, tested the boiler through multiple heating cycles, and verified proper operation of all safety controls. The emergency repair was successful, and the boiler is now fully operational, restoring heat during critical hours.