bujia caldera saunier duval thelia623 as890 3VN502IA/41 3RD LEVEL BALAY

3VN502IA/41 3RD LEVEL BALAY

EMCK 8261 855650822503

Ignition system failure causing the heater to shut off

Failure in the selection or automatic change of programs

The electronic board 87483009230 is the main control module for boilers from the Junkers and Bosch brands

bujia caldera saunier duval thelia623 as890 3VN502IA/41 3RD LEVEL BALAYThe ionization spark plug is an essential component in gas boilers, such as the Saunier Duval Thelia623. Its main function is to detect the presence of a flame in the burner through ionization, thus ensuring proper combustion and shutting off the gas supply in case of failure to prevent dangerous leaks. What problem does this replacement part solve? Boiler does not ignite or does not detect flame Unexpected shutdown of the boiler during combustion