When a burner repeatedly requires a reset, the reset itself is not the solution. It is an indication that a recurring problem has not been identified.
Recording the first alarm
The most important step is to record the first alarm and not just the last message on the screen. Many subsequent alarms are merely consequences.
When does it occur?
It should be recorded whether the trip occurs during start-up, at low fire, during load ramp-up, or after several minutes of operation.
Recurring low pressure
If the reset is related to gas pressure, trends must be recorded, not just instantaneous values.
Recurring flame failure
Check the flame signal, air-gas stability, ignition, and the mechanical condition of the burner head.
Unstable contacts
Pressostats, limit switches, relay contacts, or loose connections can cause momentary interruptions that disappear after a reset.
Using historical data
PLC/BMS history and trends are often the only way to identify an intermittent fault.