Resideo Combustion controller S4960B1006U

The Resideo S4960B1006U is a combustion controller designed for automatic control of ignition and flame monitoring in gas heating systems, boilers, and burners. It manages the safe start-up sequence, monitors flame presence, controls gas supply, and initiates emergency shutdown in case of malfunctions. This controller is used as part of automation systems for domestic and industrial heating equipment. It supersedes the discontinued models 534.412.030 and S4560B1006.

Parts of this type are selected by their exact series designation, supply voltage, safety and pre-purge times, and the method of flame detection—typically ionisation for gas burners, or UV or IR sensors for oil and industrial burners. The base or plug pattern must also match the existing wiring harness. Burner controls are normally not interchangeable across different series, even within the same brand; a mismatch in safety times creates a safety hazard. When replacing a control of this type, the heating engineer must verify the series and all programming parameters against the original part.

When items of this kind fail, the burner may fail to start, lock out without ignition, or shut down unexpectedly during operation. Common failure modes include failure to prove flame within the safety time, faulty flame detection, or internal component failure. Check the flame signal, wiring connections, and the control's lockout indicator to diagnose the issue.