The condensate trap is full. This is a serious safety issue as indicated by the illuminated red light and the word LOCKOUT flashing on the display. The boiler will not restart until a technician determines and repairs the cause and pushes RESET on the display. During this lockout fault, the pump will be off.
- Check condensate lines for obstructions.
- Check float switch in condensate reservoir.
- Check wiring from condensate reservoir to 928 control and repair as necessary.
