NO HEAT SERVICE CALL – BOILER DIAGNOSIS Equipment: Lars Natural Draft Gas Boiler Findings: - Pilot extinguished on arrival. - No 24V power to thermostat; blown fuse found in control circuit. - Fuse replaced and 24V power restored. - Gas valve tested. - Thermocouple cleaned to allow pilot relight. - Pilot knob/post at gas valve cracked and may stick during lighting. - Pilot safety confirmed operational. - Complete combustion analysis performed; readings elevated for natural draft boiler. - Elevated readings consistent with dirty heat exchanger. - Boiler is aged and requires deep internal cleaning. Current Operation: - Pilot relit and boiler fired at time of visit. - Safety shutoff verified. Safety Status & Tagging: - Boiler issued a B-TAG (Unacceptable Condition). - 45-day notice issued to complete required repairs or replacement. - Temporary operation allowed during correction period only. Inspection Tag: - New inspection/compliance tag must be installed upon return once repairs a