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Bard part number S912-0044 is an OEM fan and limit assembly used in Bard heating sections to manage blower operation and provide overtemperature protection. This control helps bring the indoor blower on and off at the right time during a heat call while also acting as a safety limit that can interrupt heating if the supply air temperature rises beyond the set limit. Replacing a weak, stuck, or out-of-calibration fan and limit control can correct symptoms like delayed blower start, short cycling on limit, or nuisance shutdowns, and it helps keep the unit operating within Bard specifications. Verify the exact model and control settings required for your specific Bard unit before ordering to ensure proper fit and safe operation.