Kromschroder Burner control unit FDU 510W2T5/1O1-0K1 84368013

Kromschroder Burner control unit FDU 510W2T5/1O1-0K1 (SKU 84368013) is a control box for gas or oil burners. It manages the ignition sequence, flame monitoring, and safety functions, including pre-purge and lockout in case of flame failure. The unit operates with a specified supply voltage and safety times as per its model designation. It is designed for standalone installation in burner systems.

Parts of this type are selected by exact series and type designation, supply voltage, pre-purge and safety times, flame detection method, and the form factor of the base or plug connector. Burner controls are normally not interchangeable across series even within the same brand. A unit with mismatched safety times or a different detection method creates a safety hazard. The part number on the label must match the original specification; only a control from the same series and with identical timing settings is a direct replacement.

When items of this kind fail, the burner may not start, lock out without an obvious cause, or shut down during operation. Common failure modes include internal relay or electronic component failure, which can result in no ignition or loss of flame signal. Check for error codes on the display, verify power supply and wiring, and test the flame sensor and air pressure switch before replacing the control unit.