Whitfield pellet stove control boards (e.g., part#16052112, 12055902) are the central digital modules that manage ignition, blower, auger, and temperature regulation during start‑up, operation, and cool‑down cycles. Common failure modes on these boards include power supply decoupling capacitor degradation, burnt or tripped MOSFETs in the blower/augur driver circuits, and shorted or open traces on the PCB that interrupt sensor inputs (temperature probe, flame sensor). Initial diagnostics should verify 24 V DC input stability, inspect for visible burn marks or component damage, and test continuity of key driver paths; if those checks are clean, review any error codes displayed on the stove’s LCD to pinpoint sensor or relay faults.[oss-gpt-20b]