Brahma Microprocessor controller VM44G 37200761

The Brahma VM44G microprocessor controller, SKU 37200761, is designed for automatic ignition control, flame monitoring, and safe operation of forced draft gas burners in intermittent mode. It operates on 220–240 V supply voltage, with a safety time of 2 seconds and a pre-purge time of 30 seconds. The controller uses an ionization electrode for flame detection and supports single-stage or two-stage burners. It features non-volatile lockout with manual reset, and is certified to EN 298. The net weight is 0.4 kg, protection class IP40, and it has a service life of 250,000 cycles under maximum load.

Parts of this type are selected by matching the supply voltage, safety time, pre-purge time, flame detection method, and mounting base pattern to the original controller. Ensure compatibility with the burner's wiring base and confirm the flame detection method (ionisation, UV, or IR) before ordering. The control box governs the entire sequence, so any deviation in timing or logic can prevent proper operation or lockout. Always consult the burner manufacturer's documentation for the correct series and settings before substituting an equivalent control.

When controllers of this kind fail, common symptoms include the burner failing to start, locking out without an obvious cause, or not responding to reset attempts. The equipment may show a lockout indication, and the flame signal may be lost or erratic. Check the flame detector, wiring connections, and supply voltage, and verify that the safety and pre-purge times are correctly set. If the controller locks out repeatedly, it may indicate a faulty flame detector, gas valve, or ignition transformer.