The condensate trap is full. The red light will display and the word LOCKOUT will flash. This code indicates a serious safety issue. The boiler will not restart until the cause is determined by a technician and he pushes the RESET button on the display. During this lockout fault, the pump will be off as indicated on the second line of the display.
- Check condensate lines for obstructions.
- Check wiring from condensate reservoir to 926 control. Verify the leads are green and red. Repair as necessary.
