What should be done if If the water level cannot be seen in the lower part of the boiler gauge glass
Stop the boiler firing immediately and investigate the cause of the water level drop. It may be:
- air in the feedwater pump
- faulty level switch, which controls feedwater pumps operation
- faulty feedwater pump contactor or automation
- leaking tube(s)
Resume normal boiler operation only after the cause identified and rectified.
