Boilers installed by Riley Plumbing Heating And Air stopped producing hot water at this South Lake Tahoe residence. The system had been installed two to three years prior and received maintenance in September. The technician arrived for diagnostic service and found the boiler firing but not delivering heat to the distribution system. The circulator pump was energized but not moving water effectively. Pump failure can occur from bearing wear or impeller damage. The technician verified power to the pump and checked for mechanical binding. The pump was replaced and the system was purged of air. Heat delivery resumed across all zones. Circulators in hydronic systems operate constantly during heating season. Bearing wear accumulates over time even with regular maintenance. Pumps typically last five to eight years depending on water quality and system demand. If your boiler is firing but not heating your home adequately, call now for diagnostic service before the issue progresses.
