Normally, the defrost timer cycles the refrigerator to defrost for about 20 minutes every six to eight hours—it essentially heats up coils to melt the ice. If it isn’t working right, ice remains on the tubing and, eventually, restricts airflow through the refrigerator. You can manually ...
Reply: normally the septic tank aerator pump should be left running 24/7 Not necessarily. Some effluent treatment systems that use an above-ground spray system may run under control of a timer. These systems are not normally on all the time. ...