Does water level drop to the bottom of the pump but the motor keeps running? , either the switch is defective (or float stuck) Does water level in the sump pit fail to drop low enough to shut off the pump? The
Sump pump normal operation: if the sump pump does not run when water lifts the float switch, or if the water level is high in the sump pit and the sump pump is not running, the system needs repair. The problem could be a clogged sump discharge line, stuck check valve, a failing or ...
The microprocessor35also produces an “alarm” output signal on pin7whenever (1) the AC power fails or (2) the pump has been running for a preselected time period (e.g., 10 minutes). That is, the “alarm” signal is produced whenever LED1or LED4is illuminated. Either of these conditi...
Playing music doesn't have to cost a fortune. You can make musical instruments from everyday materials. The PVC pipe instrument was made famous by the Blue Man Group [source:Blue Man], but you can become a musical virtuoso in your own right. Read the steps listed below and learn how to...